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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Yield stress (Mpa) | Tensile stress (Mpa) | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦0.15 | ≦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) | 2.65-3.35 | 0.8-1.0 | ≧205 | SFVA-F21A | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.65-3.35 | 0.8-1.0 | ≧205 | SFVA-F21A | JIS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.65-3.35 | 0.8-1.0 | ≧205 | F21A | ASTM | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.65-3.35 | 0.8-1.0 | ≧205 |
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| SFVAF5B | SFVAF2 | SFVA-F11B | 10CrMo-9-10 | SFVA-F22B | F21A | LF5 | SFVA-F21B | SFVA-F22A | 12CrMo-19-5 | F22 | SFVAF12 | F22A | SFVAF9 | F22 Class 3 | SFVAF2 | SFVAF5C | SFVAF5C |
| Class 3 | C5212P/C5212R | MB7 | C7701B | SGV450 | C52100 | TA1 | SFVQ2A | SMA570W | 15Cr3 |