... Grades:WP5,WP9,WP11,WP22,WP91 ;15CrMoG;12Cr1MoVG,10CrMo9102.Standard as below:16MnSTS49STPT49G3455G3456A210-CSt52.4St521.08321.0831DIN1629/4DIN1629/315MnVSTBL39G346416MnSTPL39G3460A333-1 ... 500,30 - 0,600,0250,0250,87-1,131,90-2,60Mechanical propertiesMaterialTensile N/mm2Strength Min. N/mm2Yield % min.A ... or painted black5.Marking:According to custommers' requirements Din standard st52.0 seamless tube