As different steel pipe, both seamless pipes and welded pipes, will used for different application. Then for different usage, there will be many different steel pipe standards in the pipe fields. Thus there are different requirements. So, it's important to know what's your application before you inquire or purchase pipes.
Here we compare three steel pipe standard:
1.API 5L steel pipe-This International Standard specifies requirements for the manufacture of two product specification levels(PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.
2.ASTM A53-This Standard is Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.Pipe ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines.
3.EN10219-This Standard is for Cold formed welded structural hollow sections of non-alloy and fine grain steels.
