ASTM A106 seamless steel pipe is one kind of American standard seamless steel pipe which is applied under high temperature operation condition. ASTM A106 GR.A is equivalent to the domestic mateirals #10, and ASTM A106 GR.B is equivalent to the domestic materials #20 in China. As the ordinary carbon steel series, ASTM A106 seamless steel pipe includes two different manufacturing process which are cold drawn and hot rolled. Two different manufacturing processes have influenced the pipe accuracy, surface quality, minimum size and mechanical properties etc. The nominal size from NPS 1/8 to NPS 48, nominal wall thickness prescribed ANSI B36.1. For other dimensions of steel can supply when meet this standard. According to this standard, the raw materials ordered should suitable for bending, curling, and similar forming operations. ASTM A106 seamless steel pipe is widely used in petroleum, chemical, boilers, power pants, ships, machinery manufacturing, automotive, aviation, aerospace, energy, geology, construction and military industries. 

Chemical compostition for ASTM A106 seamless steel pipe: C ≤0.25 Mn = 0.27-0.93 P≤0.035 S≤0.035 Si ≤0.1 Cr≤0.4 Cu≤0.4  Mechanical Properties for ASTM A106 seamless steel pipe: ób≥415 / MPa ós≥240 / MPa