... of seamless pipes . ASTM A 106B Seamless carbon steel pipe No. Product Name Product Size(mm) Type of Trademark and/or grade ... StandardxOutside Diameter x Wall Thickness1Seamless Steel Tubes for high pressure boilerΦ10-159 ... ,35,45,Q345,40Cr,27SiMn,20CrMo,35CrMoGB/T8162-19993Seamless Steel Tubes and pipes for liquid serviceΦ10-159 x 1.0-1610,20 ...