ASME SA204 Grade A Pressure Vessel Steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.
Mechnical property for SA204 GrA steel plate
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 255 | 450-585 | 200mm | 50mm |
| 19 | 23 | ||
Chemical composition for SA204 Grade A steel plate(Heat Analysis Max%)
| Main chemical elements composition of SA204 Grade A | ||||||
| Thickness(mm) | C | Si | Mn | P | S | Mo |
| T≤25 | 0.18 | 0.15-0.40 | 0.90 | 0.035 | 0.035 | 0.45-0.60 |
| 25<T≤50 | 0.21 | |||||
| 50<T≤100 | 0.23 | |||||
| T>100 | 0.25 | |||||
SA 204 Gr A Equivalent
| COUNTRY | EN | USA – ASTM | USA – ASME | Germany DIN,WNr |
Japan JIS |
France AFNOR |
England BS |
Italy UNI |
| STANDARDS | 16Mo3 | A 204 A | SA 204 A | 15Mo3 16Mo3 |
STBA12 | 15D3 | 1503-243B 240 243 |
15Mo3 16Mo3 |
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