Seamless Carbon Steel Pipe

Carbon steel pipe: carbon steel pipe is divided into hot rolled and cold rolled (drawn) steel pipe.Hot rolled carbon steel pipe into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipe.

Seamless steel pipe: according to the production method, the seamless pipe can be divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extrusion pipe, jacking pipe, etc.According to the section shape, the seamless steel pipe is divided into circular and irregular two kinds, irregular pipe is square, oval, triangle, hexagon, melon seed, star, with a variety of complex shapes of fin pipe.The maximum diameter is 650mm and the minimum diameter is 0.3mm.

standard of seamless steel pipes

Grade Chemical Components (%) Mechanical Properties
ASTM A53 C Si Mn P S Tensile STrength(Mpa) Yield STrength(Mpa)
A ≤0.25 ≤0.95 ≤0.05 ≤0.06 ≥330 ≥205
B ≤0.30 ≤1.2 ≤0.05 ≤0.06 ≥415 ≥240
ASTM A106 A ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥415 ≥240
B ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥485 ≥275
ASTM A179 A179 0.06-0.18 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
ASTM A192 A192 0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
API 5L PSL1 A 0.22 0.90 0.030 0.030 ≥331 ≥207
B 0.28 1.20 0.030 0.030 ≥414 ≥241
X42 0.28 1.30 0.030 0.030 ≥414 ≥290
X46 0.28 1.40 0.030 0.030 ≥434 ≥317
X52 0.28 1.40 0.030 0.030 ≥455 ≥359
X56 0.28 1.40 0.030 0.030 ≥490 ≥386
X60 0.28 1.40 0.030 0.030 ≥517 ≥448
X65 0.28 1.40 0.030 0.030 ≥531 ≥448
X70 0.28 1.40 0.030 0.030 ≥565 ≥483