ASME/ASTM Standard
Tube for Mechanical Structure
Standard
ASTM A519-03
SAE Standard of American Society of Automotive Engineers
Application
It is used for machine, automobile and other mechanical accessory purposes.
Chemical Composition
| Steel Grade | Chemical Composition Limits, % | ||||||
| C | Mn | P max | S max | Si | Cr | Mo | |
| MT 1010 | 0.05-0.15 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| MT 1015 | 0.10-0.20 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| MT X 1015 | 0.10-0.20 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| MT 1020 | 0.15-0.25 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| MT X 1020 | 0.15-0.25 | 0.70-1.00 | 0.040 | 0.050 | / | / | / |
| 1008 | 0.10 | 0.30-0.50 | 0.040 | 0.050 | / | / | / |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| 1012 | 0.10-0.15 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| 1015 | 0.13-0.18 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| 1016 | 0.13-0.18 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1017 | 0.15-0.20 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| 1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1019 | 0.15-0.20 | 0.70-1.00 | 0.040 | 0.050 | / | / | / |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | / | / | / |
| 1021 | 0.18-0.23 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1022 | 0.18-0.23 | 0.70-1.00 | 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 | / | / | / |
| 1030 | 0.28-0.34 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1035 | 0.32-0.38 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1040 | 0.37-0.44 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1045 | 0.43-0.50 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1050 | 0.48-0.55 | 0.60-0.90 | 0.040 | 0.050 | / | / | / |
| 1518 | 0..15-0.21 | 1.10-1.40 | 0.040 | 0.050 | / | / | / |
| 1524 | 0.19-0.25 | 1.35-1.65 | 0.040 | 0.050 | / | / | / |
| 1527 | 0.24-0.29 | 1.30-1.45 | 0.040 | 0.050 | / | / | / |
| 1541 | 0.36-0.44 | 1.35-1.65 | 0.040 | 0.050 | / | / | / |
| 4118 | 0.18-0.23 | 0.70-0.90 | 0.040 | 0.040 | 0.15-0.35 | 0.40-0.60 | 0.08-0.15 |
| 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 |
| 4135 | 0.33-0.38 | 0.70-0.90 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 4137 | 0.35-0.40 | 0.70-0.90 | 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 | 0.15-0.25 |
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