20CrMn High Strength Low Alloy Steel
20CrMn pressure vessel steel is a brand of alloy structural steel specified in Chinese national standards. Unified digital code: A22202. Standard: GB/T 3077-1988. 20CrMn boiler steel plate is carburized steel and can also be used as quenched and tempered steel. Its hardenability is similar to that of 20CrNi.
20CrMn hsla steel plate is used for shafts and connecting rods that work at high speed and high bending load, gear shafts, gears, water pump rotors, clutches, small shafts, spindles that work at high speed and high load without strong impact load, in addition , 20CrMn steel boiler plate can be used as bolts for high-pressure vessel cover plates in chemical equipment.
20CrMn Vessel Plate Chemical Composition:
| C | Si | Mn | Mo | Ni | Cr | P | S | Cu |
| 0.17-0.23 | 0.17-0.37 | 1.10-1.40 | 0.20-0.35 | ≤0.30 | ≤0.30 | ≤0.025 | ≤0.015 | ≤0.25 |
20CrMn Boiler Plate Mechanical Properties:
| Yield Strength(Mpa) | Tensile Strength(Mpa) | Elastic (%) | Charpy ImpactAKv(10℃) |
| 370 | 530-700 | 18 | 34 |
Boiler Steel
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