L360M straight seam welded steel pipes are made from L360M steel plates or L360M steel strips. Product standards: GB/T9711, PSL1, PSL2. Steel pipes for oil and gas industrial pipeline transportation systems.
Product specifications of L360M straight seam welded steel pipe: Outer diameter 76mm~1420mm, wall thickness 2mm~80mm.
Chemical composition of L360M straight seam welded steel pipe: Carbon: ≤0.22%, Silicon: ≤0.45%, Manganese: ≤1.40%, Phosphorus: ≤0.025%, Sulfur: ≤0.015%.
Mechanical properties of L360M straight seam welded steel pipe: Yield strength 360MPa~530MPa, Tensile strength: 460~760%, Yield ratio: 0.93. Weld tensile strength: ≥460MPa.
Inspection documents for L360M straight seam welded steel pipe (PSL2): The manufacturer shall issue an inspection certificate conforming to GB/T18253-2000 5.1.B or EN10204;2004 3.1. If the purchase order specifies an alternative method, the manufacturer shall issue an inspection certificate conforming to GB/T18253-2000 5.1.A or 5.1.C, or EN10204:2004 3.2. Where applicable, each order lot shall provide the following information:
a) Specified outer diameter, specified wall thickness, steel grade, PSL, steel type, and delivery condition;
b) Chemical composition (melting analysis and product analysis) and carbon equivalent (product analysis and acceptance limits);
c) Tensile test results and specimen type, size, location, and orientation;
d) CVN Impact test results; specimen size, orientation, and location; test temperature and acceptance limits applicable to specimens of specific sizes;
e) DWT test results (single test results and average test results) for L360M straight seam welded steel pipes;
D) Minimum hydrostatic test pressure and specified stabilization time; for welded pipes, the non-destructive testing method used for the weld (radiographic, ultrasonic, or electromagnetic); type and size of the reference reflector or image quality meter used;
h) For seamless steel pipes, the non-destructive testing method used (ultrasonic, electromagnetic, or magnetic particle); type and size of the reference reflector used; for high-frequency welded steel pipes, the minimum temperature of weld heat treatment; where applicable, proof that butt-welded pipes and/or through-hole pipes meet the requirements of Annex A and/or Annex 1;
k) Name and location of equipment used for steel pipe manufacturing, strip (coil)/plate rolling, and steelmaking; results of any supplementary tests specified in the purchase contract.
Straight seam submerged arc welded steel pipe is a material formed from JCOE steel pipes. JCOE steel pipe forming, one weld seam, submerged arc welding process, specification range from 325mm to 1420mm. When the diameter of the straight seam submerged arc welded pipe is greater than 914.4, the standard stipulates that the steel pipe is allowed to have two straight weld seams. L360M straight seam submerged arc welded pipe standard, GB/T9711.1(2)-1997 petroleum and natural gas pipeline implementation standard, API5L American implementation standard. The production process of straight seam submerged arc welded pipe is flexible and can produce any specification and wall thickness within the range. The production efficiency is lower than that of high frequency straight seam welded steel pipe and spiral welded steel pipe. The advantage of straight seam submerged arc welded pipe is that it can produce specifications and models that high frequency steel pipe, spiral steel pipe, and even seamless steel pipe cannot produce.
Threeway Steel is known as a professional supplier engaged in manufacturing and distributing a wide range of steel pipe, and our headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
