24 July 2021 Pressure Vessel Steel Plate
15MnNiDR Pressure Vessel Steel Plate
15MnNiDR boiler steel plates shall be done low temperature impact test under minus 45 centigrade.The heat treatment can be Normalized or Normalized plus Tempered when rolling.
Technical Requirements & Additional Services:
- Charpy V-notch impact test at low temperature
- Cutting and welding as per end user’s demands
- Simulated post-welded heat treatment (PWHT)
- Rolling under standard NACE MR-0175 (HIC+SSCC)
- Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
- Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
Chemical Composition:
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Ni(％) |
|---|---|---|---|---|---|
| Max 0.18 | 0.15-0.50 | 1.20-1.60 | 0.03 | 0.025 | 0.20-0.60 |
Mechanical Properties:
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 524 (≥) | 387 (≥) | 44 | 43 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 |