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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Yield stress (Mpa) | Tensile stress (Mpa) | Elongation (%) | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 | 0.05-0.15 |
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Alloy Steel Forgings for Pressure Vessels for High Temperature Service
| Steel Type | Country Code | C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Yield stress (Mpa) | 2.0-2.5 | 0.9-1.1 | ≧315 | SFVA-F22B | CNS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.0-2.5 | 0.9-1.1 | ≧315 | SFVA-F22B | JIS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.0-2.5 | 0.9-1.1 | ≧315 | F22 Class 3 | ASTM | 0.05-0.15 | ≦0.5 | 0.3-0.6 | ≦0.04 | ≦0.04 | 2.0-2.5 | 0.9-1.1 | ≧315 | F22 | ASTM | 0.05-0.15 | ≦0.5 | 0.3-0.6 | ≦0.025 | ≦0.025 | 2.0-2.5 | 0.9-1.1 | ≧315 | 10CrMo-9-10 | DIN | 0.08-0.15 | 0.15-0.50 | 0.4-0.7 | ≦0.04 | ≦0.04 | 2.0-2.5 | 0.9-1.1 | ≧315 |
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| F22 | SFVAF12 | F22A | SFVAF9 | F22 Class 3 | SFVAF2 | SFVAF5C | X12CrMo7 | SFVAF12 | SFVAF5D | SFVA-F22A | SFVAF1 | SFVAF5C | SFVA-F21A | SFVA-F21A | F5 | SKS21 | SKS21 |
| C1720W | I ANCr-HC | Class 2 | SKS44 | C1100W | C2200P/C2200R | 0Cr19Ni-9N | SCH23 | SPCD | T4 |