ASTM A579 Grade 12a Type 1, Quench and Tempered
ASTM A579 Grade 12a Type 1, Quench and Tempered general
| Property | Temperature | Value |
|---|---|---|
| Charpy impact energy | 20.0 °C | Charpy impact energy of 70 J |
| Elongation | 20.0 °C | Elongation of 13 % |
| Reduction of area | 20.0 °C | Reduction of area of 40 % |
| Tensile strength | 20.0 °C | Tensile strength of 1035 MPa |
| Yield Strength Rp0.2, short transverse | 20.0 °C | Yield Strength Rp0.2, short transverse of 965 MPa |
ASTM A579 Grade 12a Type 1, Quench and Tempered chemical
| Property | Value |
|---|---|
| Carbon | Carbon of 0.2 % |
| Chromium | Chromium of 0.4 - 0.7 % |
| Manganese | Manganese of 0.6 - 0.9 % |
| Molybdenum | Molybdenum of 0.3 - 0.65 % |
| Nickel | Nickel of 4.75 - 5.25 % |
| Phosphorus | Phosphorus of 0.02 % |
| Silicon | Silicon of 0.2 - 0.35 % |
| Sulfur | Sulfur of 0.015 % |
| Vanadium | Vanadium of 0.05 - 0.1 % |
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