1. 07MnNiMoDR steel sheet is a low-temperature vessel steel plate, the implementation standard is GB19189, usually in the state of quenching and tempering heat treatment. The impact temperature is -50 degrees.
2. The performance characteristics of 07MnNiMoDR steel sheet: high purity, high strength, high toughness and good welding performance; at the same time, it has low welding crack sensitivity performance.
3. 07MnNiMoDR steel sheet chemical composition (content of each element):
C | Si | Mn | P | S | Cu | Ni | Cr | Mo | V | B | Pcm |
≤0.09 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.005 | ≤0.25 | 0.3-0.6 | ≤0.3 | 0.1-0.3 | ≤0.06 | ≤0.002 | ≤0.21 |
4. 07MnNiMoDR steel sheet mechanical properties (yield tensile impact resistance, etc.)
Grade | Thickness | Yield strength | Tensile strength | Elongation A | 180° Cold bending | Impact test temperature and impact energy |
07MnNiMoDR | 10-50mm | ≥490MPa | 610-730MPa | ≥17% | d=3a | -50℃≥80 |
5. It is worth noting that the tempering temperature of 07MnNiMoDR steel sheet should not be lower than 610 degrees during heat treatment.
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