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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(%) | Ni(%) | 4.0-6.0 | 0.45-0.65 | SFVAF5B | CNS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 4.0-6.0 | 0.45-0.65 | SFVAF5B | JIS | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 4.0-6.0 | 0.45-0.65 | F5 | ASTM | ≦0.15 | ≦0.5 | 0.3-0.6 | ≦0.03 | ≦0.03 | 4.0-6.0 | 0.45-0.65 | 12CrMo-19-5 | DIN | 0.08-0.15 | ≦0.5 | 0.3-0.6 | ≦0.025 | ≦0.02 | 4.0-6.0 | 0.45-0.65 | X12CrMo7 | DIN | ≦0.15 | 0.5-1.0 | 0.3-0.6 | ≦0.03 | ≦0.03 | 4.0-6.0 | 0.45-0.65 |
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| SFVAF1 | SFVAF5C | SFVA-F21A | SFVA-F21A | F5 | SKS21 | SKS1 | SFVA-F11B | SFVA-F21B | SKS1 | F1 | 13CrMo-4-4 | F9 | X130W5 | 120W4 | W | F12 Class 2 | F21 | SFVAF1 | SFVAF1 |
| FCD 70 | C17200 | SKD6 | C22000 | H I | GCr9SiMn | Gr.7 | C7521B | SMA490CW | 100V1 |