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December 13, 2019
Pre-galvanized steel pipe is made of galvanized steel strip.However, its antiseptic properties is poor than hot dipped galvanized steel pipe. Ⅰ.Cold Galvanizing Welding Process Material Inspection (Steel Pipe) — Hanging — De-greasing — Rinsing — Pickling — Washing — Dipping Fluxing — Hot Air Drying — Inside and Outside Hot-dipped Galvanizing Blow — Cooling — Passivation and Rising — Unloading — Inspection and Trimming — Type Identification — Packaging and Storing and Transportation Ⅱ.Product Information Specification: OD: 21.3mm ~ 610mm WT: 0.5mm ~ 20mm […]
December 12, 2019
The hot dipped galvanized square pipe are used in structural projects, shelves, racks, trailers and in ornamental purpose. The framework made by square steel tubes, is used for providing support to the roof. This framework is also used as roof top ventilation baffles. With compare to round steel pipes, square steel pipes are little more efficient. I.Product Basic Info: Name Hot dipped galvanized square pipe Surface Galvanized (200-220g/m2 usual,can be request by customer) Material Q195,Q215,Q235 MOQ 1 tons for normal size and material WT As customer’s requests Payment terms TT or L/C Trade terms FOB,C&F,CIF,EXW Length Fixed or random,as customer request. […]
December 10, 2019
Abstract ASTM A606 covers standards for high-strength, low-alloy, hot-rolled and cold-rolled steel sheets and strips cut in lengths or coils for structural and miscellaneous purposes. The material shall come in Types 2 and 4 steels having enhanced atmospheric corrosion resistance. The material shall follow specified carbon, manganese, and sulfur contents. Tension test shall be performed and material shall comply with tensile strength, yield strength, and elongation requirements. Edges and surface finish of the materials shall conform to specifications. Guidelines for retests are also given. Product Description Product name Corten steel square/rectangular pipe Standard GB, ASTM, EN, JIS Grade 09CuPCrNi, Q235GNH, Q355NH, […]
February 14, 2019
China standard hot-dip galvanized steel pipe|cold galvanized steel pipe specification, size theoretical weight table regulation grid OD mm Wall thickness mm Minimum wall Welded pipe ( 6 m fixed length) Galvanized pipe ( 6 m fixed length) Nominal inner diameter inch Thick mm Meter weight kg Root weight kg Meter weight kg Root weight kg DN15 1/2 21.3 2.8 2.45 1.28 7.68 1.357 8.14 DN20 3/4 26.9 2.8 2.45 1.66 9.96 1.76 10.56 DN25 1 33.7 3.2 2.8 2.41 14.46 2.554 15.32 DN32 1.25 42.4 3.5 3.06 3.36 20.16 3.56 21.36 DN40 1.5 48.3 3.5 3.06 3.87 23.22 4.1 24.6 DN50 2 60.3 3.8 3.325 5.29 31.74 5.607 33.64 […]
January 4, 2019
Properties of Galvanized Steel Pipe Welds Galvanizing has been used to protect iron and steel from rusting for over a hundred years in places as diverse as the wire rope used for the suspension cables on the Brooklyn Bridge to gutters on houses. Galvanizing is simply coating of zinc over steel. Like paint, galvanizing protects steel from rusting by forming a barrier between the steel and the environment, but galvanizing goes one giant step further than paint — it also provides electrochemical protection of the steel. Since zinc is electrochemically more reactive than steel, it oxidizes to protect the steel […]
December 30, 2018
Carbon Steel Pipe (Black and Galvanized) Water Transmission Pipe Pipe Standard : ASTM A53 Grade A – Sch 40 NOMINAL SIZE OUTSIDE DIAMETER WALL THICKNESS LENGTH WEIGHT BUNDLING maximum minimum inch inch mm inch mm inch mm inch mm meter ft kg/m kg/ft lb/ft pieces 1 1.315 33.4 1.331 33.7 1.299 33.1 0.133 3.38 6 20 2.50 0.76 1.68 91 1¼ 1.660 42.2 1.676 42.5 1.644 41.9 0.140 3.56 6 20 3.39 1.03 2.28 44 1½ 1.900 48.3 1.916 48.7 1.884 47.9 0.145 3.68 6 20 4.05 1.23 2.72 44 2 2.375 60.3 2.399 60.8 2.351 59.8 0.154 3.91 6 […]
November 7, 2018
ASTM A53 covers seamless and welded black and hot-dipped galvanized steel pipe. The pipes are frequently ordered as follows: Type Black, HDG Manufacturing SMLS, ERW Grade A B Chemical compositions C Mn P S ≤0.25% ≤0.95% ≤0.05% ≤0.045% Cu Ni Cr Mo ≤0.4% ≤0.4% ≤0.4% ≤0.15% V ≤0.08% C Mn P S ≤0.3% ≤1.2% ≤0.05% ≤0.045% Cu Ni Cr Mo ≤0.4% ≤0.4% ≤0.4% ≤0.15% V ≤0.08% Mechanical properties Yield strength Tensile strength ≥205 MPa ≥330 MPa Yield strength Tensile strength ≥240 MPa ≥415 MPa […]
November 5, 2018
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 […]
May 21, 2018
Application of Black steel pipe Scaffolding 【Abstract】This paper discusses the application of scaffolding on site construction, describes in detail the calculation of the supporting system of the scaffolding, and compares the situation of two kinds of steel scaffolds commonly used in construction. 1.Detail Information of building ERW black round steel welded pipe dn200 1) size : O.D 15–457mm W.T 1–12mm Length: as you required. ( L < 12m ) 2) the chemical composition of raw materials the mechanical property of raw materials item Chemical composition % Item mechanical property steel C Mn S P Si steel yield point Mpa […]
May 7, 2018
galvanized steel pipe full knowledge Galvanized pipe, also known as galvanized steel pipe, hot dip galvanized and electrogalvanized two, hot galvanized galvanized layer thickness, with uniform coating, strong adhesion, long life and other advantages. Zinc electroplating has a low cost, the surface is not very smooth, and its own corrosion resistance is much poorer than hot dip galvanized pipe. The galvanized steel pipes are widely used in construction, machinery, coal, chemical, electric power, railway vehicles, automotive industry, roads, Bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery manufacturing industry. Product Name […]
March 3, 2018
List of Standards and Ranges for Structural and Standard Application Structural and Standard Pipe ABTER STEEL produces hot finished structural hoLLow sections of non-aLLoy and fine grain steeL according to the standard DIN EN 10210-1,2 and coLd-formed seamless and welded carbon steeL structural tubing in rounds in accordance with ASTM A500. For standard uses such as steam, gas and water supply, TMK manufactures seamless and welded tube and pipe according to ASTM A53, EN 10208-1,2, DIN EN 10224 and EN 10255 specifications. Chemical Compositon DIN EN 10210 Contents %, not less Steel Grade Material Number C WT, mm […]
January 26, 2018
Product Name: ASTM Electrical Resistance Weld (ERW) Black and Hot-dip Galvanized Steel Pipe Standard: ASTM A53 Internatioanal Standard: ISO 9001 Size Range Seamless Pipe 1/8” ～24”, DN15～DN600 API Line pipe：1/8”-48” inch, DN6～DN1200 Welded pipe：1/2”-60“inch Wall Thickness ：sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, Product NOUN interpretation: Black Steel Pipe Black steel pipe is different from galvanized pipe because it is uncoated. The dark color comes from the iron-oxide formed on its surface during manufacturing. The primary purpose of black steel pipe is to carry propane or natural gas into residential homes and commercial buildings. […]