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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) | 8.0-10.0 | 0.9-1.1 | ≧380 | SFVAF9 | CNS | ≦0.15 | 0.5-1.0 | 0.3-0.6 | ≦0.03 | ≦0.03 | 8.0-10.0 | 0.9-1.1 | ≧380 | SFVAF9 | JIS | ≦0.15 | 0.5-1.0 | 0.3-0.6 | ≦0.03 | ≦0.03 | 8.0-10.0 | 0.9-1.1 | ≧380 | F9 | ASTM | ≦0.15 | 0.5-1.0 | 0.3-0.6 | ≦0.025 | ≦0.025 | 8.0-10.0 | 0.9-1.1 | ≧380 |
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| F9 | X130W5 | 120W4 | W | F12 Class 2 | F21 | SFVAF1 | F11A Class 3 | SFVAF9 | 32Cr-Mo12 | SFVA-F22B | F5A | SFVAF5B | SKS21 | SFVAF5D | SFVAF5A | SFVAF5B | SFVAF2 | SFVA-F11B | SFVA-F11B |
| SC450 | 45Cr | SF540B | Gr.WCB | CuSn8 | Class 2A | - | XM7 | 40CrMoV4-7 | TB550 |