SB450 Pressure Vessel Quality (PVQ) Steel Performance
SB450 boiler steel plate is a carbon steel plate for boilers and pressure vessels of Japanese standard, which complies with JIS G3103 standard.
SB450 boiler steel plate can maintain stable shape and performance when subjected to external force, is not easy to break or deform, and has good impact resistance and fatigue load capacity. At the same time, SB450 pressure vessel steel can maintain stable performance in a variety of corrosive media and extend the service life of equipment.
SB450 pressure vessel plate is widely used in petroleum, chemical, power station, boiler and other industries. Specifically used to manufacture equipment and components such as reactors, heat exchangers, separators, boiler drums, and power station high-pressure water pipes.
►Mechnical property for SB450 boiler steel
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 245 | 450-590 | No.1A | No.10 |
| 19 | 23 | ||
►Chemical composition for SB450 boiler plate
| Thickness(mm) | C | Si | Mn | P | S | Mo |
| T≤25 | 0.28 | 0.15-0.40 | 0.90 | 0.030 | 0.030 | - |
| 25<T≤50 | 0.31 | |||||
| T>50 | 0.33 |
