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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Yield stress (Mpa) | Tensile stress (Mpa) | Elongation (%) | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 | ≦0.3 |
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Carbon Steel Forgings for Pressure Vessels
| Steel Type | Country Code | C(%) | V(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | ≦0.03 | SFVC2B | CNS | ≦0.3 | ≦0.35 | 0.70-1.35 | ≦0.03 | ≦0.03 | SFVC2B | JIS | ≦0.3 | ≦0.35 | 0.70-1.35 | ≦0.03 | ≦0.03 | Class 4 | ASTM | ≦0.3 | 0.15-0.40 | 1.80-1.35 | ≦0.025 | ≦0.03 | Class 1A | ASTM | ≦0.3 | ≦0.05 | 0.15-0.40 | 0.70-1.35 | ≦0.025 | ≦0.03 |
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| Class 1 | SFVC2A | SFVC2B | SFVC1 | Class 60 | SFVC1 | SFVC2A | Class 2 | Class 4 | SFVC2B | Class 1A | Class 70 | Class 70 |
| TTH340 | AZ31C | 100Cr6(W3) | Type 2 | 3135 | C4430T | KTH330-08 | H70 | Y302(YZAlMg5Si1) | C7521P/C7521R |