24 July 2021 Pressure Vessel Steel Plate
P295GH (17Mn4) Pressure Vessel Steel Plate
P295GH (17Mn4) is pressure vessel steel standard follow EN10028, P295GH steel plates are characterized by a minimum yield strength of 220 - 295 MPa and by good weldability.
P295G steel plate has good plasticity, toughness, cold bending performance and welding performance, and is suitable for manufacturing nuclear island steel containment vessels, pressure vessels, and equipment structural parts.
P295GH is used in the fabrication of industrial pressure vessels and boilers. It is an EN10028 specified grade which governs steels used in pressurised service. It is a normalized steel and has excellent welding characteristics. It is used worldwide by fabricators serving the oil and gas industry and can be found in heat exchangers, weldable pressure vessels and boilers and pipework.
Chemical Composition:
| Standard | C | Mn | Si | P | S | Cr | Mo | Ni | V | Nb | Ti | Al | Cu | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EN | 0.08 - 0.20 | 0.9 - 1.5 | <0.4 | <0.025 | <0.015 | <0.3 | <0.08 | <0.3 | <0.02 | <0.02 | <0.03 | >0.02 | <0.3 | <0.012 |
| ISO | <0.2 | 0.9 - 1.5 | <0.4 | <0.035 | <0.030 | <0.3 | <0.08 | <0.3 | - | - | - | >0.02 | <0.3 | - |
Mechanical properties:
| Nominal thickness (mm): | to 100 | 100 - 150 | 150 - 250 |
| Rm - Tensile strength (MPa) (+N) | 460-580 | 440-570 | 430-570 |
| Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 60 | 60 - 100 | 100 - 150 | 150 - 250 |
| ReH - Minimum yield strength (MPa) (+N) | 295 | 290 | 285 | 260 | 235 | 220 |
| KV - Impact energy (J) transverse, (+N) | -20° 27 | 0° 34 | +20° 40 |
| KV - Impact energy (J) longitud., | 0° 40 | +20° 47 |
| A - Min. elongation at fracture (%) (+N) | 21-22 |