Seamless steel tube ASTM A519 Application Size: O.D: 6.0~820.0mm W.T: 1.0~80.0mm Length Max.9000mm Grade and Chemical Compositon Grade C Mn Pí_ Sí_ Si Cr Mo 1008 í_0.10 0.30-0.50 0.040 0.050 - - - 1010 0.08-0.13 0.30-0.60 0.040 0.050 - - - 1018 0.15-0.20 0.60-0.90 0.040 0.050 - - - 1020 0.18-0.23 0.30-0.60 0.040 0.050 - - - 1025 0.22-0.28 0.30-0.60 0.040 0.050 - - - 1026 0.22-0.28 0.60-0.90 0.040 0.050 - - - 4130 0.28-0.33 0.40-0.60 0.040 0.040 0.15-0.35 0.80-1.10 0.15-0.25 4140 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 0.80-1.10 0.15-0.35 Mechanical Properties Grade Condition Tensile Poing(Mpa) í¦ Yield Point(Mpa) í¦ Elongation(A%) í¦ 1020 CW 414 483 5 SR 345 448 10 A 193 331 30 N 234 379 22 1025 CW 448 517 5 SR 379 483 8 A 207 365 25 N 248 379 22 4130 SR 586 724 10 A 379 517 30 N 414 621 20 4140 SR 689 855 10 A 414 552 25 N 621 855 20 Seamless steel tube ASTM A519