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| C(%) | V(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Ni(%) | Yield stress (Mpa) | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 | ≦0.23 |
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Quenched and Tempered Alloy Steel Forgings for Pressure Vessels
| Steel Type | Country Code | C(%) | V(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | ≦0.02 | 1.5-2.0 | 0.4-0.6 | SFVQ3 | CNS | ≦0.23 | ≦0.03 | ≦0.4 | 0.2-0.4 | ≦0.02 | ≦0.02 | 1.5-2.0 | 0.4-0.6 | SFVQ3 | JIS | ≦0.25 | ≦0.03 | ≦0.4 | 0.2-0.4 | ≦0.02 | ≦0.02 | 1.5-2.0 | 0.4-0.6 | Class 3A | ASTM | ≦0.25 | ≦0.05 | 0.15-0.35 | 1.2-1.5 | ≦0.025 | ≦0.02 | 1.5-2.0 | 0.4-0.6 |
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| SFVQ1A | Class 3A | SFVQ3 | Class 2A | SFVQ2B | SFVQ2B | SFVQ2A | SFVQ1A | SFVQ1B | Class 3 | SFVQ2A | SFVQ3 | SFVQ1B | SFVQ1B |
| 3316 | 0Cr13 | MgZn6Zr | Gr.WC5 | Type B Class 2 | TA3 | Gr.LC1 | A1080P | 80002 | Ti 3 |