| Kipengele | Ni +Co | Cr | Nb | Ti | C | Mn | Si | Cu | Al | S | Chuma |
| Muundo wa Kemikali (%) | Dakika 70% | 14%-17% | 0.7%-1.2% | 2.25%-2.75% | Upeo wa 0.08% | 1% ya juu | Upeo wa 0.5% | Upeo wa 0.30% | 0.4%-1.0% | Upeo wa juu wa 0.01% | 5%-9% |
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