12MnNiVR vessel plate
12MnNiVR pressure vessel steel is a steel plate for boiler pressure vessels, complying with GB/T standards.
12MnNiVR boiler steel plate delivery status: steel plate heat treatment (heat treatment and quenching) impact temperature is -20°C. The steel plate is subjected to offline heat treatment and quenching. The quenching temperature should not be less than 600°C. When the steel plate is required to remove in-situ stress, the heat treatment process ( When SR), the final quenching temperature of SR steel plate is not less than 610℃. The heat treatment is indicated by "QT", and the delivery status can also be specified according to technical requirements.
12MnNiVR boiler plate Chemical Composition:
| C | Si | Mn | Cr | B | Mo | V | P | S | Cu |
| ≤0.15 | 0.15-0.40 | 1.20-1.60 | ≤0.3 | ≤0.0020 | ≤0.3 | 0.02-0.06 | ≤0.02 | ≤0.01 | ≤0.25 |
structural alloy steel plate
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