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15CrMoR alloy structural steel plate is medium temperature pressure vessel steel. 15CrMoR alloy structural steel plate implements the standard GB713, and the corresponding American steel grade is SA387 gr 12. 15CrMoR alloy structural steel plate is delivered in the normalized + tempered state. The flaw detection standard of 15CrMoR alloy structural steel plate is implemented according to JB / T4730.3.
Chemical composition of 15CrMoR alloy structural steel plate:
| C% | Si% | Mn% | Cu% | Ni% | Cr% | Mo% | P% | S% |
| 0.08-0.18 | 0.15-0.40 | 0.40-0.70 | ≤0.30 | ≤0.30 | 0.80-1.20 | 0.45-0.60 | ≤0.025 | ≤0.010 |
Mechanical property of 15CrMoR alloy structural steel plate:
| Steel Grade | Thickness, in mm | Tensile Strength | Yield Strength, min | Elongation, %, min |
| 15CrMoR | 6<T≤60 | 450-590 | 295 | 19 |
| 60<T≤100 | 275 | |||
| 100<T≤200 | 440-580 | 255 |
15CrMoR alloy structural steel plate it is used to manufacture large-scale equipment with harsh service conditions and complex corrosive medium, such as petrochemical, coal conversion, nuclear power, steam turbine cylinder block, thermal power, etc.
