abter steel pipe manufacturer, natural gas casing and tubing,seamless steel pipe,OCTG, http://www.abtersteel.com OCTG pipe,carbon steel pipe,seamless steel pipe ,erw pipe Wed, 05 Dec 2018 09:00:48 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.8 Asia’s steel trade faces multiple challenges http://www.abtersteel.com/news/industry-news/asias-steel-trade-faces-multiple-challenges/ Wed, 05 Dec 2018 09:00:48 +0000 http://www.abtersteel.com/?p=4493 From November 12 to 14, 2018, the eighth Asia Steel Forum was held in Seoul, South Korea. Expert representatives of iron and steel industry who come from Asian countries and regions has conducted extensive discussions on hot issues such as iron and steel import and export, industrial policies, the fourth industrial revolution and trade measures. Participants said that weak domestic demand and trade friction are important challenges that the development of the steel industry faces at present, and the abuse of trade protection measures is bringing about adverse impacts in many aspects. For the development of China’s steel market, Xia […]

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From November 12 to 14, 2018, the eighth Asia Steel Forum was held in Seoul, South Korea. Expert representatives of iron and steel industry who come from Asian countries and regions has conducted extensive discussions on hot issues such as iron and steel import and export, industrial policies, the fourth industrial revolution and trade measures.

Participants said that weak domestic demand and trade friction are important challenges that the development of the steel industry faces at present, and the abuse of trade protection measures is bringing about adverse impacts in many aspects.

For the development of China’s steel market, Xia Xiaokun, who is vice president of Shanghai Mysteel Research Institute. He said, this year, the environmental restricting output normalized steel production fell year-on-year, then the strong toughness of China’s Economic ensure the smooth running of domestic steel consumption. And the whole of China’s iron and steel spot market prices is running at a high state, while the profits of the production end remains high.

As for the market situation in 2019, Xia Xiaokun believes that we should focus on environmental protection, demand, trade friction and the reduction of overcapacity. In three years, China has basically completed the task of reducing steel production capacity by 150 million tons. In the future, China’s steel production capacity may be controlled mainly through reduction and replacement. However, as China’s environmental protection efforts continue to increase, the environmental restrictions in steel industry will become the norm. On the demands, there are signs of weakness in China’s main downstream industries, and trade frictions between the U.S. and China may indirectly affect China’s steel demand.

According to the steel network estimates, in 2019, China’s domestic downstream demand for steel declined about 2 percent year-on-year, output or flat with 2018, the average price of steel fell 6% year-on-year, steel exports has slightly rebound.

Data show that since 2016, China’s steel exports continue to decline, but this year’s export prices have a rising trend.

Hou Ying, the international trade negotiator of China Iron and Steel Association, said that global steel demand is expected to continue to suitable growth in 2019, the increase may be 1.4%. But the rising trade tensions and exchanging volatile rates have added to uncertainty about the growth prospects of market.

Excluding China,other developing countries in Asia,their steel demand is expected to grow 5.9 percent this year and 6.8 percent next year. In this context, the stability of the Asia-Pacific regional trade order is crucial to global markets. To this end, Hou Ying proposed that China, Japan and the Korea stick to the principle of openness and fairness under the WTO rules, maintain the trade order, jointly deal with the abuse of rules to over-protect markets, and ensure the hard-won momentum of steady development of the global steel market.

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Stainless steel pipe – Duplex-Stahl http://www.abtersteel.com/stainless-steel-pipe/stainless-steel-pipe-duplex-stahl/ Fri, 30 Nov 2018 01:50:12 +0000 http://www.abtersteel.com/?p=4483 Our stock range: Stainless steel from standard to special – 1.4462 Duplex-Stahl 1.4410 Super-Duplex-Stahl and 1.4547 254SMO Our large stock range includes many different piping systems from standard stainless steel and high alloy steels such as 1.4539 / 904L, Duplex steel and Super Duplex steel. At our company headquarters in Rastede, Lower Saxony, we store tubes and pipe connections in seamless or welded versions according to DIN / EN and ASME. We have an area of 8,000 m² overbuilt storage space and an outdoor storage area of 4,000 m². 1.4462 / Duplex-Stahl, 1.4410 / Super-Duplex-Stahl, 1.4547 / 254SMO or standard […]

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Our stock range: Stainless steel from standard to special –

1.4462 Duplex-Stahl
1.4410 Super-Duplex-Stahl and
1.4547 254SMO

Our large stock range includes many different piping systems from standard stainless steel and high alloy steels such as 1.4539 / 904L, Duplex steel and Super Duplex steel. At our company headquarters in Rastede, Lower Saxony, we store tubes and pipe connections in seamless or welded versions according to DIN / EN and ASME. We have an area of 8,000 m² overbuilt storage space and an outdoor storage area of 4,000 m².

1.4462 / Duplex-Stahl, 1.4410 / Super-Duplex-Stahl, 1.4547 / 254SMO or standard stainless steel: the seamless pipe system

  • 1.4541 / 321 / 321H / 1.4878
  • 1.4571 / 316 Ti
  • 1.4404 / 316 / 316 L
  • 1.4539 / 904L
  • 1.4462 / S 31803 / S 32205
  • 1.4410 / Super-Duplex / UNS S32750
  • 1.4547 / 254SMO / UNS S31254

In the case of greater wall thickness, tubes are usually produced seamlessly. For this purpose, the tube is produced from a single block using the extrusion process, and then brought to the finished dimension. The resulting tubes are completely homogeneous and allow higher operating pressures than welded tubes.

Tubes in welded version

In addition to the seamless pipes, we also carry a large range of welded products. Usually, welded tubes are produced that have a small wall thickness relative to the wall thickness. First, a hollow body is produced – by rolling or bending sheet metal -, which is then welded at the joints.

  • 1.4462 / S31803 / S32205
  • 1.4539 / 904L

We also offer these from (Super) Duplex steel. You can find more articles in our supply range.

In our online shop, we offer a large number of different materials including:

  • 1.4541 / 321 / 321H / 1.4878
  • 1.4571 / 316 Ti
  • 1.4404 / 316 / 316 L
  • 1.4547 / 254SMO / UNS S31254

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ASTM A106/A53 Gr.B Carbon Steel ERW Pipes http://www.abtersteel.com/seamless-steel-pipe/astm-a106-a53-gr-b-carbon-steel-erw-pipes/ Wed, 28 Nov 2018 06:48:59 +0000 http://www.abtersteel.com/?p=4467 ASTM—American Society for Testing and Materials ASME—American Society of Mechanical Engineers Standard A53/SA53GR.B Seamless Steel Tube, ASTM—American Society for Testing and Materials ASME—American Society of Mechanical Engineers Standard A106/SA -106GR.B seamless steel pipe, ASTM/ASME-A106/A53GR.B American standard seamless steel pipe, API-SPECSL-ASTM/ASME-A106/SA-106-A53/SA53-GR.B-PSL1.SMLS-NDE American standard seamless steel pipe ASME SA106B / ASTM A106B Executive Standard: ASME SA106 Gr.B ASME B36.10M/ASTM A106 Gr.B ASME B36.10M A106Gr.B/A53B/API5LGRB three-standard tube, Shengzhou Yongzheng Pipe Industry specializes in supplying ASME ASTM A106 Gr.B seamless steel pipe; ASTM A53 GR.B seamless steel pipe; API SPEC 5L GR.B seamless steel pipe   ASME ASTM A106 Gr.B seamless steel pipe; ASTM A53 […]

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ASTM—American Society for Testing and Materials ASME—American Society of Mechanical Engineers Standard A53/SA53GR.B Seamless Steel Tube, ASTM—American Society for Testing and Materials ASME—American Society of Mechanical Engineers Standard A106/SA -106GR.B seamless steel pipe, ASTM/ASME-A106/A53GR.B American standard seamless steel pipe, API-SPECSL-ASTM/ASME-A106/SA-106-A53/SA53-GR.B-PSL1.SMLS-NDE American standard seamless steel pipe

ASME SA106B / ASTM A106B

Executive Standard: ASME SA106 Gr.B ASME B36.10M/ASTM A106 Gr.B ASME B36.10M

A106Gr.B/A53B/API5LGRB three-standard tube, Shengzhou Yongzheng Pipe Industry specializes in supplying ASME ASTM A106 Gr.B seamless steel pipe; ASTM A53 GR.B seamless steel pipe; API SPEC 5L GR.B seamless steel pipe  
ASME ASTM A106 Gr.B seamless steel pipe; ASTM A53 GR.B seamless steel pipe; API SPEC 5L GR.B seamless steel pipe 
1. Single standard delivery ASTM A106 GR.B ASTM A53 GR.B API 5L GR.B, X42, X46 , X52, X60. 
2. Double standard delivery: ASTM A106/A53 GR.B ASTM A106/API5L GR.B ASTM A53/API 5L GR.B. 
3. Three standard delivery: ASTM A106/A53/API 5LGR.B Seamless steel pipe outer diameter is 1/2′′-28′′, 21.3-711.2mm. 
Wall thickness implementation standard and packing instructions: wall thickness SCH10, SCH20, SCH30 , SCH40, STD, SCH60, XS, SCH80, SCH120, SCH160, XXS etc. 
Length of steel pipe: 5.8 meters in length, 6 meters in length, and up to 12 meters in length, can be arbitrarily fixed. 
The surface of the steel pipe is coated with anti-corrosive paint, plastic protector (cap) at both ends, chamfered according to requirements (chamfering, chamfering). ASTM A106 GR.B ASTM A53 GR.B API 5L GR.BB S1387 GR.B Provide BV test, SGS test, LR test, IBR test. 
The export steel pipe performs the standard ASME ASTM A106 Gr.B; ASTM A53 GR.B; API SPEC 5L GR.B; BS1387; ASTM A179; ASTM A192; ASTM A335; ASTM A333; DIN1629; ASMEASTM A106C

Sizes (Seamless): 1/2″ NB – 60″ NB
Sizes (ERW): 1/2″ NB – 24″ NB
Sizes (SAW): 16″ NB – 100″ NB

Wall Thickness available:
Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thickness.

Type of Carbon Steel Pipe

  • ASTM A53 GR. B
  • A106 GR. B
  • API 5L GRADE B
  • API 5L GR. X42/46/52/56/60/65/70
  • A333 GR. 3/ GR. 6 etc

Material Grades :

 High Temperature Seamless Pipe ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B
Heat Exchanger Seamless Tube ASTM A179
Low Temperature Seamless Pipe ASTM A333 Gr. 3/6
Low Temperature Seamless Tube ASTM A334 Gr. 6
High Yield Seamless Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield Seamless Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485
Atmospheric & Low Temp EFW Pipes ASTM A671 Gr. CC60/CC65/CC70
High Pressure & Moderate Temp EFW Pipes ASTM A672 Gr. B60/B65/B70/C55/C60/C65/C70
High Yield ERW/SAW Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield ERW/SAW Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485

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what is threaded flange and usage of threaded flange http://www.abtersteel.com/knowledge/what-is-threaded-flange-and-usage-of-threaded-flange/ Tue, 27 Nov 2018 05:05:11 +0000 http://www.abtersteel.com/?p=4464 A threaded flange is a type of flange that is threaded to the pipe. Designed with a loose flange. The advantage is that no welding is required, and the additional torque generated on the barrel or pipe when the flange is deformed is small. The disadvantage is that the flange is thick and the cost is high. Suitable for connection to high pressure pipes. [1] Threaded flanges are made by machining the inner bore of the flange into a pipe thread and connecting it with a threaded pipe. It is a non- welded flange . It welded flange or welded […]

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A threaded flange is a type of flange that is threaded to the pipe. Designed with a loose flange. The advantage is that no welding is required, and the additional torque generated on the barrel or pipe when the flange is deformed is small. The disadvantage is that the flange is thick and the cost is high. Suitable for connection to high pressure pipes. [1]
Threaded flanges are made by machining the inner bore of the flange into a pipe thread and connecting it with a threaded pipe. It is a non- welded flange . It welded flange or welded flange , compared with the threaded mounting flange, convenient maintenance, the line can not be welded in some field of use. Alloy steel flanges have sufficient strength, but are not easy to weld, or the welding performance is not good, you can also choose a threaded flange. However, when the pipe temperature changes sharply or the temperature is higher than 260 ° C and lower than -45 ° C, it is recommended not to use a threaded flange to avoid leakage.

Threaded flanges look very similar to Slip-On flanges but the main difference is that the threaded flange has been was bored out to match a specific pipe inside diameter. The backside of this center opening is then threaded with the relevant-sized tapered pipe thread.

Threaded Flanges can be used in very high pressure services and their major advantage is that they can be assembled without welding.

Materials of THREADED FLANGES :

CARBON STEEL – ASTM/ASME SA-105, A-350 LF-2, LF-3, A694, SA-516-70, A36
CHROME ALLOYS – A-182-F-1, F-5, F-6, F-7, F-9, F-11, F-12, F-22, F-51
STAINLESS STEEL – A-182 – F-304, 304L, 316, 316L, 309, 310, 317L, 321, 347,
Alloy 20
ALUMINUM – 1100, 2014, 3003, 5083, 5086, 6061, 7075
HASTALLOY – B-2, C-276, G, X
INCONEL – 600, 601, 625, 718
INCOLLOY – 800, 825
MONEL – 400
COPPER – C11000
NAVAL BRASS – (Bronze)
TITANIUM

Uses of threaded flanges :

1.Threaded flanges can be fitted to pipes of various sizes without welding and this is one chief benefit for which these flanges are highly demanded.

2. Used in extremely high pressure applications, particularly at or near atmospheric temperature, where the necessary post weld heat treatment is not possible.

3. They are ideal for small diameter piping applications.

4. These threaded flanges are normally designed for non-cyclic applications.

5. The flanges are suitable to be used in applications where welding is hazardous.

6. They can be used in highly explosive areas.

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A333 GR.6 ALLOY PIPE – CERTIFICATE OF INSPECTION http://www.abtersteel.com/equipment/a333-gr-6-alloy-pipe-certificate-of-inspection/ Wed, 21 Nov 2018 10:19:32 +0000 http://www.abtersteel.com/?p=4458 A333 Gr6 PIPE CERTIFICATE OF INSPECTION -BAOTOU

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A333 Gr6 PIPE CERTIFICATE OF INSPECTION -BAOTOU

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seamless steel tube,seamless steel pipe http://www.abtersteel.com/equipment/manufacturing-process/seamless-steel-pipe-manufacturing-process/seamless-steel-tubeseamless-steel-pipe/ Mon, 19 Nov 2018 00:44:44 +0000 http://www.abtersteel.com/?p=4455 The seamless steel tube is rolled by a solid tube blank after perforation. 1. Manufacturing method According to different production methods, it can be divided into hot rolled pipe, cold rolled pipe, cold drawn pipe and extruded pipe. 1.1. Hot-rolled seamless pipes are generally produced on automatic rolling mills. The solid tube blank is inspected and the surface defects are removed, cut into the required length, centered on the end face of the perforated end of the tube blank, then sent to a heating furnace for heating and perforated on the punching machine. At the same time, the perforation is […]

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The seamless steel tube is rolled by a solid tube blank after perforation.

1. Manufacturing method

According to different production methods, it can be divided into hot rolled pipe, cold rolled pipe, cold drawn pipe and extruded pipe.

1.1. Hot-rolled seamless pipes are generally produced on automatic rolling mills. The solid tube blank is inspected and the surface defects are removed, cut into the required length, centered on the end face of the perforated end of the tube blank, then sent to a heating furnace for heating and perforated on the punching machine. At the same time, the perforation is continuously rotated and advanced. Under the action of the roll and the head, a cavity is gradually formed inside the tube blank, which is called a capillary tube. It is sent to the automatic pipe mill for further rolling. Finally, the whole machine is uniform in wall thickness, and the sizing machine is sizing to meet the specification. The production of hot-rolled seamless steel tubes by continuous rolling mills is a more advanced method.

1.2. If you want to obtain seamless pipes of smaller size and better quality, you must use cold rolling, cold drawing or a combination of the two. Cold rolling is usually carried out on a two-roll mill in which the steel pipe is rolled in an annular hole formed by a variable-section circular hole groove and a stationary tapered head. Cold drawing is usually carried out on a single-chain or double-chain cold drawing machine of 0.5 to 100T.

1.3. Extrusion method The tube blank to be heated is placed in a closed extrusion cylinder, and the perforated rod moves together with the extrusion rod to extrude the extrusion from the smaller mold hole. This method can produce steel pipes with smaller diameters.

2, use

2.1, seamless pipe is widely used. The general-purpose seamless pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and has the largest output, and is mainly used as a pipe or structural part for conveying fluid.

2.2, according to the use of three types of supply: a, according to chemical composition and mechanical properties; b, according to mechanical properties; c, according to water pressure test supply. Steel pipes supplied in categories a and b, if used to withstand liquid pressure, are also subjected to hydrostatic testing.

2.3. Special-purpose seamless pipes include boiler seamless pipes, geological seamless pipes, and petroleum seamless pipes.

3, type

3.1. Seamless steel pipes can be divided into hot rolled pipes, cold rolled pipes, cold drawn pipes and extruded pipes according to different production methods.

3.2. According to the shape, there are round tubes and special-shaped tubes. In addition to the square tube and the rectangular tube, the special-shaped tube has an elliptical tube, a semi-circular tube, a triangular tube, a hexagonal tube, a convex-shaped tube, a plum-shaped tube, and the like.

3.3, according to different materials, divided into ordinary carbon structural tube, low alloy structural tube, high quality carbon structural tube, alloy structural tube, stainless tube and so on.

3.4. According to special purposes, there are boiler tubes, geological tubes, oil pipes, etc.

4, specifications and appearance quality

Seamless pipe according to GB/T8162-87

4.1. Specifications: The outer diameter of the hot rolled tube is 32-630mm. The wall thickness is 2.5 to 75 mm. The cold rolled (cold drawn) tube has an outer diameter of 5 to 200 mm. The wall thickness is 2.5 to 12 mm.

4.2. Appearance quality: There shall be no cracks, folds, rolling, separation, hairline and crusting defects on the inner and outer surfaces of the steel pipe. These defects should be completely removed, and the wall thickness and outer diameter must not exceed the negative deviation after cleaning.

4.3. Both ends of the steel pipe should be cut at right angles and the burrs should be removed. Steel pipes with wall thicknesses greater than 20 mm allow for gas cutting and hot saw cutting. The agreement between the supplier and the buyer may also be unsuccessful.

4.4. Cold-drawn or cold-rolled precision seamless steel pipe “surface quality” refers to GB3639-83.

5. Chemical composition test

5.1. The domestic seamless pipes supplied according to chemical composition and mechanical properties, such as the chemical composition of steels 10, 15, 20, 25, 30, 35, 40, 45 and 50 shall comply with the provisions of GB/T699-88. The imported seamless pipes are inspected according to the relevant standards stipulated in the contract. The chemical composition of 09MnV, 16Mn and 15MnV steels shall comply with the provisions of GB1591-79.

5.2. The specific analysis method refers to the relevant part of GB223-84 “Chemical Analysis Methods for Iron and Steel and Alloys”.

5.3. Analytical deviation refers to GB222-84 “Performance deviation of chemical composition of steel and finished product for chemical analysis”.

6, physical performance test

6.1. Domestic seamless pipe supplied according to the performance of the machine. Ordinary carbon steel is made according to GB/T700-88 Class A steel (but the sulfur content must not exceed 0.050% and the phosphorus content does not exceed 0.045%). The performance shall comply with the values ​​specified in the table of GB8162-87.

6.2. The domestic seamless pipe supplied according to the hydraulic test must guarantee the hydraulic pressure test specified in the standard.

6.3. The physical property test of the imported seamless pipe shall be carried out in accordance with the relevant standards stipulated in the contract.

7. Main import and export situation

7.1. The import volume of general seamless pipes is very large. The main importing countries are Germany and Japan. European countries such as Romania, Russia, Switzerland, France, Spain, Czech Republic, Yugoslavia, Hungary and other countries have imports. A small number of imports from South America, Argentina, Mexico and other countries.

7.2 According to the different requirements of China’s cargo units, there are more than 100 types of imported seamless tubes. The common specifications are 15922mm, 1595mm and 15918mm. 114.38mm, 114.310mm, 114.313mm. The length is generally 5 to 8 m or 4 to 7 m. Mainly hot rolled carbon structure, steel grades ST35.ST45 and ST65. The smallest diameter of the imported specification is 305mm and the largest is 47813mm.

7.3. A small number of seamless tubes with small diameters and thin walls, such as 183mm, 223mm, 26.93mm, etc., have been imported from France and Spain. Implement the general rules of the Mannesmann Steel Tube Plant in Germany.

7.4. Seamless pipes imported from Hungary and Japan, often referred to DIN 2448, DIN 1629.

7.5. In the case of import claims, the quality problems of imported seamless pipes mainly include: unqualified chemical components, splitting in the flattening test, low tensile strength, severe rust and pits.

8, packaging

According to GB2102-88. There are three types of steel pipe packaging: bundling, packing, oiling or oiling.

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Seamless and ERW Stainless Steel Pipes http://www.abtersteel.com/seamless-steel-pipe/seamless-and-erw-stainless-steel-pipes/ Thu, 15 Nov 2018 06:39:54 +0000 http://www.abtersteel.com/?p=4451 Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Billets are procured both from indigenous suppliers and from abroad. A steel pipe made of a single piece of metal and having no seams on its surface is called a seamless steel pipe. According to the production method, the seamless pipe is divided into a hot rolled pipe, a cold rolled pipe, a cold drawn pipe, an extruded pipe, a top pipe, and the like. According to the shape of the section, the […]

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Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Billets are procured both from indigenous suppliers and from abroad. A steel pipe made of a single piece of metal and having no seams on its surface is called a seamless steel pipe. According to the production method, the seamless pipe is divided into a hot rolled pipe, a cold rolled pipe, a cold drawn pipe, an extruded pipe, a top pipe, and the like. According to the shape of the section, the seamless steel tube is divided into two types: a circular shape and a special shape. The shaped tube has a plurality of complicated shapes such as a square shape, an elliptical shape, a triangular shape, a hexagonal shape, a melon shape, a star shape, and a winged tube. The maximum diameter is 650mm and the minimum diameter is 0.3mm. Depending on the application, there are thick-walled tubes and thin-walled tubes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel tubes for automobiles, tractors, and aviation.

classification

Jointless steel pipe along the perimeter of its cross section. According to different production methods, it is divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, and top pipe, etc., each with its own process regulations. The material is ordinary and high-quality carbon structural steel (Q215-A~Q275-A and 10~50 steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless acid-resistant steel, etc. Divided into general use (for water, gas pipelines and structural parts, mechanical parts) and special (for boilers, geological exploration, bearings, acid resistance, etc.).

What is the Difference Between Seamless and ERW Stainless Steel Pipes?

Electric Resistance Welding (ERW) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; therefore ERW pipe have a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.

In Seamless pipe, there are no welding or joints and is manufactured from solid round billets. The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Applicable in for High-pressure applications such as Hydrocarbon Industries & Refineries, Oil & Gas Exploration & Drilling, Oil & Gas Transportation and Air and Hydraulic cylinders, Bearings, Boilers, Automobiles
etc.

ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil. Pearlites steel is one of the leading ERW Stainless Steel Pipes Manufacturer and exporter from India. Contact us for product details.

Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. Surface finishes are available in bare and coated formats and processing can be handled on site to customer specifications.

How to Identify Seamless or ERW Stainless Steel pipes?
To identify that a pipe supplied is seamless or ERW, Simply read the stencil on the side of the pipe

If it is ASTM A53, Type S means seamless.
Type F is furnace but welded,
Type E is Electrical resist welded.
Thats how. It is the easiest way to identify wether pipe is seamless or ERW.

In short, Seamless is marketed on an outdated myth that it does not have flaws but that welded has an inherent flaw throughout the length of each tube, as stated above. Intuitively this concept is easily accepted by purchasers and designers with limited experience with the various products. Each product form and manufacturing method has its own inherent problems and potential defects.

Consumers must become familiar with what those problems and defects are, and how they might affect particular applications. Then they can make an informed decision based on facts, rather than myth.

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ASTM A53 seamless steel pipe http://www.abtersteel.com/seamless-steel-pipe/astm-a53-seamless-steel-pipe/ Wed, 07 Nov 2018 07:35:51 +0000 http://www.abtersteel.com/?p=4447 A53 seamless steel pipe A106 seamless steel pipe American standard seamless steel pipe production process. Generally used seamless pipe: it is made of 10, 20, 30, 35, 45 and other high-quality carbon steel 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or cold-rolled, American standard API5L GR.B seamless steel pipe GB 20# seamless steel pipe. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes. 45, 40Cr and other medium carbon steel seamless pipe used to manufacture mechanical parts, American standard seamless […]

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A53 seamless steel pipe A106 seamless steel pipe American standard seamless steel pipe production process.
Generally used seamless pipe: it is made of 10, 20, 30, 35, 45 and other high-quality carbon steel 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or cold-rolled, American standard API5L GR.B seamless steel pipe GB 20# seamless steel pipe. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes. 45, 40Cr and other medium carbon steel seamless pipe used to manufacture mechanical parts, American standard seamless steel pipe, API5L American standard seamless steel pipe general material, ASTM A106 A53, can be replaced by domestic 20# steel, American standard steel pipe export packaging The requirements are also very strict, fixed length, baling, painting, caps, and spray markings must be done. Mainly in the sea drifting fear of seawater corrosion. Such as the force parts of cars and tractors.

Generally, seamless steel pipes are required to ensure strength and flattening test. The hot rolled steel pipe is delivered in a hot rolled state or a heat treated state; the cold rolling is delivered in a heat treated state. Production methods can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. according to different production methods.

Hot rolled seamless pipes are generally produced on automatic pipe rolling units. The solid tube blank is inspected and the surface defects are removed, cut into the required length, centered on the end face of the perforated end of the tube blank, then sent to a heating furnace for heating and perforated on the punching machine. At the same time, the perforation is continuously rotated and advanced. Under the action of the roll and the head, a cavity is gradually formed inside the tube blank, which is called a capillary tube. It is sent to the automatic pipe mill for further rolling. Finally, the whole machine is uniform in wall thickness, and the sizing machine is sizing to meet the specification. The production of hot-rolled seamless steel tubes by continuous rolling mills is a more advanced method. For smaller tubes of better size and better quality, cold rolling, cold drawing, or a combination of the two must be used. Cold rolling is usually carried out on a two-roll mill in which the steel pipe is rolled in an annular hole formed by a variable-section circular hole groove and a stationary tapered head. Cold drawing is usually carried out on a single-chain or double-chain cold drawing machine of 0.5 to 100T. The extrusion process is to place the heated tube blank in a closed extrusion cylinder, and the perforated rod moves together with the extrusion rod to extrude the extrusion from the smaller die hole. This method can produce steel pipes with smaller diameters. Cold drawn or cold rolled precision seamless pipe (GB3639-83) is a cold drawn or cold rolled precision seamless pipe with high dimensional accuracy and surface finish for mechanical structures and hydraulic equipment. The use of precision seamless pipes to manufacture mechanical structures or hydraulic equipment can greatly reduce machining time, improve material utilization, and improve product quality. Hot-rolled seamless pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.

 

American Standard Seamless Steel Pipe is a long strip of steel with a hollow section and no seams around it. The steel pipe has a hollow section and is used as a pipe for conveying fluid. The standard stainless steel pipe standard is such as pipeline for transporting oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when it has the same bending and torsional strength. It is an economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycles. Shelf and steel scaffolding used in construction. The use of steel pipes to manufacture ring-shaped parts can improve material utilization, simplify manufacturing processes, save materials and processing man-hours, such as rolling bearing rings, jacks, etc., and have been widely used in steel pipes. Steel pipes can be divided into round pipes and shaped pipes according to the shape of the cross-sectional area. Since the area of ​​the circle is large under the condition of equal circumference, more fluid can be transported by the circular tube. In addition, the circular section is subjected to a relatively uniform force when subjected to internal or external radial pressure, and therefore, most of the steel pipes are round pipes.

    American standard seamless steel pipe ASTM/A53 Gr.B general purpose seamless steel pipe, ASTM/A106/A53 Gr.B chamfered chamfered inverted steel pipe, Bs1387-1985 British standard erw high frequency welded pipe and galvanized Tube, ASTM/A333 -40°C-101°C low temperature seamless steel tube. ASTM/A179 seamless steel tube for heat exchanger and condenser. Steel tube length: 5.8 m fixed length, 6 m fixed length, and up to 12 m long Ruler, can also be fixed according to user needs.

    The outer diameter of the product is 1/2′′-28′′, 21.3-711.2mm, wall thickness SCH30, SCH40, STD, XS, SCH80, SCH160, XXS etc. The seamless tube can be surface treated as required, with plastic tubes at both ends. The cap can be chamfered as required and can be inspected.

 

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Polyurethane insulation steel pipe http://www.abtersteel.com/coated-steel-pipe/polyurethane-insulation-steel-pipe/ Mon, 05 Nov 2018 09:40:30 +0000 http://www.abtersteel.com/?p=4443 Polyurethane foam insulation seamless steel pipe   The polyurethane direct buried heat preservation pipe is a direct buried preheating heat preservation pipe with good heat preservation performance, safety and reliability, and low engineering cost. The buried thermal insulation pipe not only has the advanced technology and practical performance that is difficult to compare with the traditional trench and overhead laying pipeline, but also has obvious social and economic benefits, and is also a powerful measure for heating and energy saving. The prefabricated direct buried thermal insulation pipe adopts the direct buried heating pipeline technology, which indicates that the development of China’s heating pipeline […]

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Polyurethane foam insulation seamless steel pipe

  The polyurethane direct buried heat preservation pipe is a direct buried preheating heat preservation pipe with good heat preservation performance, safety and reliability, and low engineering cost. The buried thermal insulation pipe not only has the advanced technology and practical performance that is difficult to compare with the traditional trench and overhead laying pipeline, but also has obvious social and economic benefits, and is also a powerful measure for heating and energy saving. The prefabricated direct buried thermal insulation pipe adopts the direct buried heating pipeline technology, which indicates that the development of China’s heating pipeline technology has entered a new starting point. With the world’s energy reduction and increasing demand, energy conservation, emission reduction and environmental protection have become the global development trend. The state and local governments also vigorously promote the development, application and industrialization of energy conservation, emission reduction and environmental protection products. The use of polyurethane rigid foam insulation is an important branch of the polyurethane industry. It is characterized by a multi-purpose use to prevent the spread of fire and good fire safety performance. Black jacket insulation pipe includes spiral steel pipe, straight seam steel pipe and seamless steel pipe. The outer layer is made of black polyethylene and is called a black jacket insulation tube. The speed of the polyurethane insulation pipe is fast. This phenomenon usually occurs in the spring and summer or midday construction, because the temperature rises suddenly and the temperature is too high. The black material can be cooled with cold water or placed outdoors at night to avoid direct sunlight. The foam strength is small and the foam is soft. This phenomenon is caused by the imbalance of the proportion of black and white materials. Appropriately increase the proportion of black material (1:1-1.05). Note that the ratio of black material is not too large, otherwise the foam will become brittle. It also affects the performance of the foam.

  As the only new building materials for thermal insulation and waterproof integration, the application of polyurethane rigid foam insulation materials in the domestic construction industry is still in the initial stage. Fortunately, in order to speed up the innovation of building insulation materials and promote the promotion and application of polyurethane rigid foam in the field of building energy conservation, the Ministry of Construction has specially established the “Polyurethane Building Energy Saving Application Working Group” to promote the energy saving of polyurethane rigid foam insulation materials in China. Industry applications.

 

  Polyurethane foam insulation steel pipes have outstanding advantages:

  Polyurethane foam insulation steel pipe has good insulation performance, and the heat loss is only 25% of the traditional pipe. Long-term operation can save a lot of energy and significantly reduce energy costs.

  Polyurethane foam insulation steel pipe has strong waterproof and corrosion resistance. It does not need to be equipped with pipe trenches. It can be directly buried in the ground or water. The construction is simple and rapid, and the comprehensive cost is low.

  Polyurethane foam insulation steel pipe also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in underground frozen soil.

  Proper installation and use of polyurethane foam insulation steel pipe can make pipe network maintenance costs extremely low.

  The polyurethane foam insulation steel pipe can be equipped with an alarm system to automatically detect the leakage of the pipe network, accurately indicate the fault location and automatically alarm.

  The service life of polyurethane foam insulation steel pipe can reach 30-50 years. Pipe diameter: DN15–DN600 Thickness: 15-50mm Uses: Central heating pipes, refrigeration pipes, industrial pipes, etc.

  Oxygen index of polyurethane foam insulated steel pipe: ≥27 Density: 40–70kg/cubic m Water-repellent rate: 0.03kg/cmcm Thermal conductivity: 0.022kcal/mh°C

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Flange anticorrosive steel pipe http://www.abtersteel.com/techinical-info/flange-anticorrosive-steel-pipe/ Mon, 05 Nov 2018 09:32:13 +0000 http://www.abtersteel.com/?p=4438 Flanges are disc-shaped parts that are most common in plumbing and flanges are used in pairs. In plumbing, flanges are mainly used for the connection of steel pipes. In the pipelines that need to be connected, a variety of flanges are installed, and the low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A sealing point is added between the two flanges and then fastened with bolts. Different pressure flanges have different thicknesses and use different bolts.   Pumps and valves, when connected to the pipeline, part of these equipment, also made into the corresponding flange […]

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Flanges are disc-shaped parts that are most common in plumbing and flanges are used in pairs. In plumbing, flanges are mainly used for the connection of steel pipes. In the pipelines that need to be connected, a variety of flanges are installed, and the low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A sealing point is added between the two flanges and then fastened with bolts. Different pressure flanges have different thicknesses and use different bolts.

 

Pumps and valves, when connected to the pipeline, part of these equipment, also made into the corresponding flange shape, also known as flange connection. Connection parts that are closed at the same time by bolting on both planes are generally referred to as “flanges”. For example, the connection of ventilation ducts may be referred to as “flange parts”.However, this connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not good to call the pump “flange parts”. Smaller such as valves, etc., can be called “flange parts”.

Flange flange connections are an important connection for pipeline construction.

Flange connection is to fix two pipes, pipe fittings or equipment on a flange, and between the two flanges, with flange mats, bolted together to complete the connection. Some fittings and equipment have their own flanges and are also flanged. 
Flange threaded connection (wire connection) flange and welded flange. Low-pressure small-diameter wire-bonded flanges, high-pressure and low-pressure large diameters are all welded flanges. The thickness of the flanges of different pressures and the diameter and number of connecting bolts are different. 


Depending on the level of pressure, the flange pads are also available in different materials, from low pressure asbestos pads, high pressure asbestos pads to metal pads. 
The flange connection is easy to use and can withstand large pressures. 
Flange connections are widely used in industrial piping. In the home, the pipe diameter is small and low pressure, and the flange connection is not visible. If you are in a boiler room or production site, there are flanged pipes and equipment everywhere. 
Pipe connection, heat treatment and non-destructive testing pipe section connection pipe can be directly connected in the following ways: (1) Butt welding between pipes or between pipe and valve box or other accessories, butt welding should be full penetration type, and the root quality is Special regulations, or full penetration type, but no special provisions for root quality; (2) Sleeve welded joints, sleeve welding shall be carried out according to recognized standards, with appropriate size sleeves and related welding processes; (3) Approved type Threaded sleeve connection. The scope of use of the above pipe connection method is as follows: (1) Butt weld connection and sleeve weld connection shall comply with the requirements of Table 2.5.1.2(1). The connection mode between the pump and the pipe system is applicable to the pipe system. The outer diameter is taken to improve the quality of the weld root. The butt welding I, II, III does not adopt the butt welding of the root quality of the weld. II, III However, toxic media or pipes that are expected to cause fatigue and severe corrosion during work are excluded D ≤ 88.9 mm
Threaded sleeve connections shall be in accordance with recognized standards. Threaded sleeve connections can be used for piping systems of the following outer diameters, but not for piping systems that carry toxic or flammable media or that are expected to cause fatigue and severe corrosion during operation. Threaded connections in the carbon dioxide system are only available in the protected space and in the carbon dioxide cylinder chamber. 1 Threaded connection of tapered thread can be applied to Class I pipe system with outer diameter of not more than 33.7mm and class II pipe system with outer diameter of not more than 60.3mm. Threaded connection of 2 parallel thread can be used for III with outer diameter of not more than 60.3mm Grade piping, 3 In special cases, if it meets the requirements of recognized international or national standards, it can accept dimensions larger than the above. Flange Connections Typical flange connections are indicated for small diameter pipes. Depending on the individual case and operating conditions, sleeve connections, threaded sleeve connections or other pipe sections can be used for direct butt joints (eg horn sleeve or shoulder joint). The provisions for the selection of the above various flange connections. Typical flanged applications are toxic or corrosive media. The size of the flammable flange and its bolts should be selected according to national standards or acceptable standards. 
The dimensions of the flanges and their bolts for special purposes should be considered separately. Mechanical joints of all types of mechanical joints to which this section applies. . Mechanical joints shall be type approved according to the requirements of Appendix 3 of this Chapter for different purposes and locations. The mechanical joint shall be constructed to prevent seal failure due to pressure pulsation, piping vibration, temperature changes and other similar adverse effects after shipment. Pumps and Pipes Steel Seagoing Rules for Classification Typical flanged mechanical joints are to be compatible with piping materials and internal and external media. Mechanical joints should be able to withstand internal and external pressure. The mechanical joints used for the suction line should be able to work properly under a certain degree of vacuum. The reduction in wall thickness due to the use of snap rings or other structural elements should be considered when determining the minimum wall thickness at design pressure. Pumps and Pipes Steel Seagoing Classifications Mechanical joints that cause fire or water immersion in the event of damage and should not be directly connected to the pipe section of the sea or flammable liquid tank. The number of mechanical joints in the oil circuit system should be as small as possible.

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