Chemical properties of 16MnDR boiler steel plate
16MnDR boiler steel is a steel plate for low-temperature pressure vessels. It complies with GB3531 standard and has good toughness and weldability. It is suitable for pressure vessels at -40℃.
In 16MnDR boiler steel plate, "16Mn" means the manganese content is between 1.20% and 1.60%, "D" means low temperature, and "R" means pressure vessel.
16MnDR vessel plate chemical composition
| Grade | C% | SI% | Mn% | Ni% | Mo% | V% | Nb% | Alt% | P%, max | S%, max |
| 16MnDR | ≤0.20 | 0.15-0.50 | 1.2-1.6 | ≤0.40 | - | - | - | ≥0.020 | 0.02 | 0.01 |
16MnDR pressure vessel plate mechanical poperty
| Steel Grade | Thickness, in mm | Tensile Strength | Yield Strength, min | Elongation, %, min |
| 16MnDR | 6<T≤16 | 490-620 | 315 | 21 |
| 16<T≤36 | 470-600 | 295 | ||
| 36<T≤60 | 460-590 | 285 | ||
| 60<T≤100 | 450-580 | 275 | ||
| 100<T≤120 | 440-570 | 265 |
