Chemical element composition of Chinese grade ultra-high strength marine steel plate FH960
FH960 Approaching Steel Plate Grade Lookup Table
FH960 Chemical composition
| Grade | Delivery status | Chemical composition (mass fraction)/% | |||||||||||||||||||||||||||||||
| C | Si | Mn | P" | S" | Cu | Cr | Ni | Nb | Vb | Ti | Mo | N | Alt | ||||||||||||||||||||
| FH960 | QT | ≤0.18 | ≤0.80 | ≤1.70 | ≤0.020 | ≤0.010 | ≤0.50 | ≤1.50 | ≤2.00 | ≤0.06 | ≤0.12 | ≤0.05 | ≤0.70 | ≤0.015 | ≥0.018 | ||||||||||||||||||
| “The P and S content of the structural steel is allowed to be 0.005% higher than the values specified in the table. Except for quenched and tempered steel, Nb+V+Ti ≤ 0.26% and Mo+Cr ≤ 0.65%. With the consent of both the supplier and the buyer, the Ni content may be appropriately increased. Oxygen content [O] ≤50×10⁶. ‘Oxygen content [O] ≤ 30 × 10⁶. When boron is intentionally added to enhance the hardenability of steel, the boron content should not exceed 0.005%. |
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