Products News

November 8, 2021

Basic knowledge about oil pipeline

Basic knowledge about oil pipeline 1. Explanation of special terms related to petroleum pipeline API: It is the abbreviation of American Petroleum Institute in English, and Chinese means American Petroleum Institute. OCTG: It is the abbreviation of Oil Country Tubular Goods in English, which means special oil pipes in Chinese, […]
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November 16, 2021

Introduction to basic knowledge of alloy structural steel

In addition to iron and carbon, steel is called alloy steel by adding other alloying elements. An iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements on the basis of ordinary carbon steel. According to the different added elements and adopting appropriate processing technology, special […]
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November 24, 2021

What factors affect the performance of galvanized steel pipe

Galvanized steel pipes are welded steel pipes with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of the steel pipe and prolong the service life. Galvanized pipe has a wide range of uses. In addition to line pipes for conveying water, gas, oil […]
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December 2, 2021

Terms, definitions, symbols and abbreviations for tubing and casing

Terms, definitions, symbols and abbreviations 1.1 Terms and definitions This International Standard adopts the terms and definitions listed in the heat treatment operation section of ASTM A941 and below. 1.1.1 accessory material Seamless standard casing or oil pipe, seamless thick-walled pipe or mechanical pipe, bar material or hot forged material […]
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December 8, 2021

Knowledge and understanding of carbon steel pipes

Carbon steel pipe is made of steel ingots or solid round steel through perforation into capillary tube, and then made by hot rolling, cold rolling or cold drawing. Carbon steel pipe has an important position in my country’s steel pipe industry. General carbon steel pipe: It is made of 10, […]
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December 13, 2021

Detailed introduction of 16Mn seamless pipe

16Mn seamless steel pipe is a relatively important material for seamless steel pipe, and it is also a relatively useful steel. Recently, especially in capital construction pipelines, houses, and railway bridges, it has given full play to a relatively huge effect. Generally, the original factory paints the color code on […]
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December 21, 2021

Tubing coupling requirements

The coupling should be a seamless pipe, and its steel grade, type and heat treatment should be the same as that of the pipe. When the coupling is electroplated, the electroplating process should be controlled to minimize hydrogen absorption. The structure of the tubing coupling is: the end of the […]
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December 29, 2021

Detailed explanation of Pipe and Tube

PIPE is a circular section tube conforming to ASME B36.10M and ASME B36.19M. There are some special PIPEs that do not meet the dimensions in these tables, as well as circular tubes. The nominal outer diameter corresponds to the actual outer diameter. A TUBE is a hollow object with a […]
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January 4, 2022

Inspection test of tubing and casing

Inspection, test Test equipment In order to ensure that all products meet the requirements of this standard, the manufacturer shall determine the appropriate calibration frequency for the test equipment. If the equipment required to be calibrated or verified in accordance with the provisions of this standard is in an abnormal […]
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January 12, 2022

Various inspection methods of oil casing

Petroleum casing is a high-end product produced by steel pipes. There are many varieties of casing, and there are many types and requirements of casing pipe end buttons. The button types that can be processed include STC, LC, BC,and other button types. The production and installation process of oil casing […]
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January 24, 2022

Mechanical properties of steel pipes

The mechanical properties of steel are important indicators to ensure the end-use properties (mechanical properties) of steel, which depend on the chemical composition and heat treatment system of the steel. In the steel pipe standard, according to different use requirements, the tensile properties (tensile strength, yield strength or yield point, […]
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February 8, 2022

Introduction to the knowledge of seamless steel pipes and welded pipes

Seamless steel pipes are widely used. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel. .2. According to different uses, it is divided into three categories: a. According to chemical composition and mechanical properties; b. According to mechanical properties; C. […]
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February 14, 2022

Drill pipe related terms and symbols analysis

bevel diameter Rotary shoulder connection seals the outer diameter of the shoulder. defect Defects of sufficient size are the basis for product rejection in accordance with the guidelines set forth in this International Standard. drill pipe Drill pipe body with butt welded joints. drill pipe body There are seamless steel […]
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February 22, 2022

Detailed explanation of tubing and casing markings

11 mark 11.1 General 11.1.1 Products manufactured in accordance with this specification shall be marked by the manufacturer in accordance with this specification. 11.1.2 For all manufacturers except threaders, the marking rules in Chapter 11 except 11.6 apply, and for threaders the marking rules in 11.5 and 11.6 and Table […]
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February 26, 2022

Construction scaffolding steel pipe specification table

1. Specifications of scaffolding steel pipes: diameters are Φ3.0, Φ2.75, Φ3.25, Φ2.5; lengths are generally 1-6 meters and half a meter, and can be processed according to customer requirements. 2. The implementation standard of scaffolding steel pipe: SY/T5768-95 GB/T3091-2001. 3. The material of scaffolding steel pipe: Q195, Q215 or Q235. […]
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February 28, 2022

Various test procedure rules for tubing and casing

10.4 Tensile test 10.4.1 Stress release temperature For the purpose of tensile test frequency requirements, stress-relief tempered tubes are considered to have not been “heat-treated” when the stress-relief temperature is 56°C (1000°F) below the final temper temperature. 10.4.2 Furnace—Controlled Tensile Test—Group 1, 2, 3 For each heat of steel produced […]
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March 8, 2022

Coupling standards and requirements for oil casing

9.1 General requirements Couplings shall be seamless pipes of the same grade, type and heat treatment as pipes, except in the following cases in 9.2. This standard does not require that coupling blanks be cut from coupling stock ordered in accordance with this standard. When couplings are electroplated, the electroplating […]
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March 29, 2022

Steel pipe standards and basic knowledge

1. Basic knowledge of steel pipe standards 1. Standards: Standards are repetitive things with diversity-related characteristics in economic and technological activities. On the basis of summarizing the comprehensive results of scientific technology and practical experience, they are fully negotiated by relevant parties, and are issued in specific procedures and specific […]
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April 6, 2022

Basic knowledge of steel pipe varieties and standards

1. Basic knowledge of steel pipe standards 1. Standards: Standards are repetitive things with diversity-related characteristics in economic and technological activities. On the basis of summarizing the comprehensive results of scientific technology and practical experience, they are fully negotiated by relevant parties, and are issued in specific procedures and specific […]
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April 18, 2022

Hole-drilled pipe&Water filter pipe for geothermal well&Water filter pipe of air-conditioning well

Hole-drilled pipeWe supply hole-drilled pipes of various specifications and materials and provide hole-drilling services, and you are welcome to call and inquire us! Diameter of hole-drilled pipe：114mm，127mm，140mm，168mm，178mm，219mm，245mm，273mm，325mm，406mm，426mm，530mm，630mm。 Materials of hole-drilled pipe: Stainless steel, carbon steel, J55，N80，and L80. 2. Water filter pipe for geothermal well          A geothermal […]
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April 25, 2022

Double-layer lined screening pipe&Sand-control screening pipe for oil well

Double-layer lined screening pipe The double-layer lined screening pipe is composed of a base pipe of API standard, a double-layer high precision wedge wire filter pipe and lined filter material in between. Characteristics of the product: 1.High-precision screening gap can effectively control sand and act as a protective medium. 2.The […]
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May 9, 2022
astm a252 welded steel pipe piles

Steel Pipe Piles Overview and Construction Method

1 Overview For more than half a century, steel pipe piles have gradually become one of the main types of piles in foundation engineering. Steel pipe piles are widely used in Shanghai, my country, and some deep-water wharves, Baoshan iron and steel plants, power plants and dozens of high-rise buildings […]
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May 19, 2022
saw-pile-pipe-astm-a252-grade-3

Examples of steel pipe pile construction methods

4.1 Drum-type diesel hammer impact pile driving method (1) The method of “heavy hammer and low strike” should be adopted for piling. (2) The pile frame generally adopts a 3-point support crawler pile driver. (3) The elevation of the pile top of the steel pipe pile in the piling sequence […]
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June 17, 2022

Classification and function of casing

Casing Classification and function of casing Casing is the steel pipe that supports the wall of oil and gas wells. Several layers of casing are used for each well according to different drilling depths and geological conditions. Cement cementing should be used after the casing is run down the well. […]
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June 20, 2022

Welded vs. Seamless Production in the Tube-Making Process

Welded vs. Seamless Production in the Tube-Making Process Steel tubes, from automobile manufacturing to gas pipes, can be either welded from alloys – metals made from different chemical elements – or constructed seamlessly from a melting furnace. While welded tubes are forced together through methods such as heating and cooling and […]
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June 21, 2022

How wear occurs in pipes and why high-strength wear-resistant steel outperforms regular steel pipe in abrasive environments

  In transportation systems that use pipes, wear occurs when hard particles or abrasive slurry particles slide along or are forced against the pipe walls. This action on the pipe wall can lead to loss of material and, in extreme cases, leakage or failure of the pipe. Ordinary steel pipes […]
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June 21, 2022

Seamless Steel Pipe Wall Thickness Variation Control Technology

Reducing the amount of variation, or achieving more wall thickness consistency, can be the difference between meeting a customer’s requirements or not. It also helps to reduce or even may eliminate the customer’s need for subsequent processes such as machining. Seamless tube typically is manufactured on a two-roll piercer mill. […]
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June 23, 2022

Basic knowledge and uses of seamless steel pipes, oil casings and pipes

Knowledge of oil casing Basic knowledge Oil casing is a large-diameter pipe that acts to fix the wall or bore of oil and gas oil wells. The casing is inserted into the wellbore and fixed with cement to prevent the wellbore from separating the rock formation and the wellbore from […]
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June 29, 2022

API 1104 Sources of Piping and Related Facilities

The API 1104 standard, developed by the American Petroleum Institute (API), is the industry standard for welding applications. This standard provides a method for producing high-quality welds in a novel and understandable format using qualified welders, approved welding procedures, materials and equipment. The full name of the standard is as follows: API […]
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July 5, 2022

Classification, production process and mechanical properties of seamless steel pipes

According to different production methods, it is divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, pipe jacking, etc., all of which have their own process regulations. The materials are ordinary and high-quality carbon structural steel (Q215-A~Q275-A and 10~50 steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless […]
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July 9, 2022

erw ,roll bending pipes,sprial pipes,different manufacturing processes

pdf downloads: welded pipes different manufacturing processes MAJOR PODUCTION USAGE: The manufacturing process of different welded pipes,Comparison table of steel pipe manufacturing standard grades in different countries. pdf  downloads:02.Comparison table of steel pipe manufacturing standard grades in different countries    
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July 15, 2022

Quality requirements for seamless steel pipes

(1) Quality requirements ①Chemical composition of steel: The chemical composition of steel is one of the most important factors affecting the performance of seamless steel pipes, and it is also the main basis for formulating process parameters for rolling and heat treatment of steel pipes. Alloying elements: intentionally added, according […]
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August 12, 2022

Introduction to A335 P91 Alloy Pipe- 10Cr9Mo1VNb

A335 refers to the executive standard: ASTM A335 seamless ferritic alloy steel pipe for high temperature P91 is a material in the ASTM A335 standard: I. Introduction to 10Cr9Mo1VNb: 10Cr9Mo1VNb is equivalent to T91 or P91 and implements the standard ASTM A213 ASTM A335. 10Cr9Mo1VNb not only has high oxidation […]
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August 12, 2022

A691Gr2-1 / 4CrCL22 high temperature and high pressure steel pipe

First, SA691Gr2-1/4CrCL22 is mainly used as welded pipe for power equipment A691 grade is mainly used for high temperature and high pressure carbon steel and alloy steel point melt welded steel nominal pipe Second, SA691 is a high temperature and high pressure reconsideration condition with electric fusion welding steel and […]
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August 19, 2022

Differences between the characteristics of different grades of alloy steel pipes, and application cases

Differences between the characteristics of different grades of alloy steel pipes, and application cases 12CrlMoV This steel has the characteristics of creep limit and lasting strength values are similar, in the long-term stretch, it has high plasticity, its oxidation resistance and thermal strength are higher than 2CrMoV, and the workmanship […]
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November 27, 2024

Pipeline Casing Pipes Structural Design

  Structural Design of Pipeline Casing Pipes: A Comprehensive Guide Introduction The structural design of pipeline casing pipes is a critical aspect of engineering in industries such as oil and gas, water supply, and utilities. Casing pipes serve as protective enclosures for pipelines, shielding them from external loads, environmental factors, […]
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August 19, 2025

reinforce the best pipe fitting price list

Ici, renforcez la meilleure liste de prix de l’ajustement des tuyaux – reculez pour votre référence. Article PRODUCT QUANTITÉ 1 Elbow ASTM A234 WPB ASTM B16.9  ½ INCH LR 90 SCH.160 100 2 Elbow ASTM A234 WPB ASTM B16.9  ½ INCH LR 90 SCH.80 200 3 Elbow ASTM A234 WPB ASTM B16.9  ½ […]
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