API 5L:  Line pipe (Plain end PSL1/PSL2)

API 5CT:  Casing (Group 1)


ASTM A53: Pipe, steel, black and hot-dipped sinc-coated steel pipe

ASTM A135: Standard specification for electric-resistance-welded steel pipe

ASTM A500: Cold-formed welded carbon steel structural tubing in round and stapes

ASTM F1083: Standard specification for pipe, steel, hot-dipped zinc-coated welded for fence structures

ASTM A702: Standard specification for steel fence posts and assemblies hot wrought

ASTM A589: Standard specificaiton for welded carbon steel water-well pipe

ASTM A252: Welded steel pipe piles


BS1387: Steel tubes suitable for screwing to BS21 pipe threads

BS4568: Specification for conduits for electrical installations

BS3601: Carbon steel pipes and tubes with specified room temperature properties for pressure purposes

BS EN39: Loops steel tubes for tube and coupler scaffolds-technical delivery conditions


EN10219: Cold formed welded structural hollow sections of non-alloy fine grain steels

EN10217: Welded steel tubes for pressure purposes-technical delivery conditions


DIN1626: Welded circular tubes of Non Alloy Steels with special Quality Requirements

DIN2440: Steel tubes medium weight suitable for screwing


JIS G3444: Carbon steel tubes for general structural purposes

JIS G3452: Carbon steel pipes for ordinary piping

JIS G3454: Carbon steel pipes for pressure service

International Standards

ISO3183: Petroleum and natural gas industries steel pipe for pipe lines

IEC423: Conduits for electrical purposes


GB/T3091: Welded steel pipe for low pressure liquid delivery

GB/T13793: Steel tubes with a longitudinal weld

GB/T14291: Welded steel pipe for liquid service

GB/T6728: Cold formed steel sections

GB/T9711: Petroleum and natural gas industries steel pipe for pipe lines

SY/T6194: Casing (Group 1)

SY/T5037: Spirally submerged arc welded pipe for pipe lines for low pressure fluid service

SY/T5040: Spirally submerged arc welded pipe piles