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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Yield stress (Mpa) | Tensile stress (Mpa) | Elongation (%) | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 | ≦0.2 |
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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) | 0.80-1.25 | 0.45-0.65 | ≧275 | SFVAF12 | CNS | ≦0.2 | ≦0.6 | 0.3-0.8 | ≦0.04 | ≦0.03 | 0.80-1.25 | 0.45-0.65 | ≧275 | SFVAF12 | JIS | ≦0.2 | ≦0.6 | 0.3-0.8 | ≦0.04 | ≦0.03 | 0.80-1.25 | 0.45-0.65 | ≧275 | F12 Class 2 | ASTM | 0.1-0.2 | 0.1-0.6 | 0.3-0.8 | ≦0.04 | ≦0.04 | 0.80-1.25 | 0.45-0.65 | ≧275 | 13CrMo-4-4 | DIN | 0.08-0.18 | ≦0.35 | 0.4-1.0 | ≦0.04 | ≦0.025 | 0.80-1.25 | 0.45-0.65 | ≧275 |
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| F5A | SFVAF5B | SKS21 | SFVAF5D | SFVAF5A | SFVAF5B | SFVAF2 | SFVA-F11B | 10CrMo-9-10 | SFVA-F22B | F21A | LF5 | SFVA-F21B | SFVA-F22A | 12CrMo-19-5 | F22 | SFVAF12 | F22A | SFVAF9 | SFVAF9 |
| C7521B | MB2 | Gr.485 | CuSn4 | 6061 | 22S20 | GTW-35-04 | SNCM439 | A1 99.0 | MS6 |