Seamless Steel Pipe Standard: ASTM A106, A53, API 5L, DIN2440, DIN1629, EN10255 etc. Seamless Steel PipeMechanical propertiestandardGradeTensile strength MPayield strength MPaASTM A53A≥330≥205B≥415≥240Chemical compositionstandardgradeChemical compositionCSiMnPSCuNiMoCrVASTM A53A≤0.25/≤0.95≤0.05≤0.06≤0.40≤0.40≤0.15≤0.40≤0.08B≤0.30/≤1.20≤0.05≤0.06≤0.40≤0.40≤0.15≤0.40≤0.08 OD: 10mm-580mm WT: 1mm- ...