GB/T 9711.1-Line Pipe-Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)

GB/T 9711.2-Line Pipe-Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class B steel pipe)

BS EN10217-1:Part 1: Electric welded and submerged arc welded non-alloysteel tubes with specified room temperature properties

ASTM A252-Steel Pipe for Ordinary Structure-Welded and seamless steel pipe piles

The ASTM A139/A139M standard mainly covers the manufacturing requirements for electric fusion (arc) welded straight or spiral seam steel pipes, and is applicable to steel pipes with NPS 4 and above. This standard specifies five grades of steel pipes, whose mechanical properties are different from

ASTM A53-Steel Pipe for Fluid Service-Black and hot-hipped galvanized welded and seamless steel pipe

ASTM A671 is a standard specifically designed for electric melting welded steel pipes used in normal and low temperature environments, suitable for high-pressure transportation scenarios. This standard specifies that the outer diameter of steel pipes shall not be less than 16 inches (400 millimeters), the wall thickness shall not be less than 1/4 inch (6.4 millimeters), and specifies the technical requirements for different grades and categories. The level corresponds to the steel plate material (such as CC65 indicating the use of A516 Gr.65 steel plate), and the category is divided according to the combination of heat treatment processes (such as normalizing, quenching, etc.), weld radiographic inspection, and hydrostatic testing. For example, CL32 category requires normalizing treatment and the execution of radiographic inspection and hydrostatic testing.

ASME B36.10M is a standard developed by the American Society of Mechanical Engineers (ASME) that specifies dimensional standards for welded and seamless rolled steel pipes. This standard covers the outer diameter, wall thickness, length, and other related dimensional parameters of steel pipes.

ASTM A252 is a spiral steel pipe standard developed by the American Society for Testing and Materials, mainly applicable to steel pipes used in pile foundations and structural engineering. This standard specifies in detail the manufacturing process, welding requirements, mechanical properties, and chemical composition of steel pipes, and the products meet engineering requirements in terms of bearing capacity and durability. Common supporting standards include API 5L, GB/T9711, etc., and are often combined with EN10219 and other standards in the international market.

​API 5L PSL1-Line pipe

API 5L PSL2-Line pipe

BS EN10217-2-Steel Pipe for Fluid Service-Welded steel tybes for pressure purposes – delivery technical conditions – part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties