The American Petroleum Institute specification API 5L X70 Grade Steel Pipe PSL2 addresses seamless and welded steel line pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L X70 Grade Steel Pipe PSL2 is suitable f

JIS G 4051 S20C is a grade under Japanese Industry Standard. JIS G 4051 S20C hot rolling seamless steel pipes are manufactured by hot forming, such as hot rolling or hot forging, ordinarily to be used after further process of forging, cutting and heat tre

JIS G 4051 S10C hot rolling seamless steel pipes are manufactured from killed steel ingot. S10C is a kind of mechanical structure carbon steel, S10C often used in the manufacture of stamping parts and carburized parts.

API 5L PSL1 X42 Electric welded steel pipes shall be randomly checked for straightness; deviation from a straight line shall not exceed 0.2% of the length. Measurement may be made using a taut string or wire from end to end along the side of the pipe, mea