ASTM A519

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Seamless carbon and Alloy Steel Mechanical Tubing
Application

For mechanical engineering.
For mechanical and pressure use,and also for transporting steam,water,gas and etc.

Size(mm): O.D.: 20∼180 W.T.: 2-30L: max 12000

Grade and Chemical Composition (%)

Grade

 C Mn P≤ S≤ Si Cr Mo
1008

≤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 0.050 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25

Mechanical Properties

Grade Condition MPa Tenslle Point Yield Point Elongation
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%