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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Yield stress (Mpa) | Tensile stress (Mpa) | Elongation (%) | ≦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) | 2.0-2.5 | 0.9-1.1 | ≧205 | SFVA-F22A | CNS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.0-2.5 | 0.9-1.1 | ≧205 | SFVA-F22A | JIS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 2.0-2.5 | 0.9-1.1 | ≧205 | F22 | ASTM | 0.05-0.15 | ≦0.5 | 0.3-0.6 | ≦0.025 | ≦0.025 | 2.0-2.5 | 0.9-1.1 | ≧205 | F22A | ASTM | 0.05-0.15 | ≦0.5 | 0.3-0.6 | ≦0.025 | ≦0.025 | 2.0-2.5 | 0.9-1.1 | ≧205 |
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| F21A | LF5 | SFVA-F21B | SFVA-F22A | 12CrMo-19-5 | F22 | SFVAF12 | F22A | SFVAF9 | F22 Class 3 | SFVAF2 | SFVAF5C | X12CrMo7 | SFVAF12 | SFVAF5D | SFVA-F22A | SFVAF1 | SFVAF1 |
| BC6C | MgAl8Zn1 | C1720W | C4250P/C4250R | 34Mn5 | 5056 | TA3 | CN-7M | FCMP490 | SUS302 |