| 摘要 |
A roll caster shell for use in a continuous sheet casting machine which is made of an alloy which consists essentially of, in weight %,: C: 0.35-0.55%, Si: 0.10-0.50%, Mn: 0.20-0.70%, P: 0.03% or less, S: 0.02% or less, Ni: 0.60% or less, Cr: 0.80-1.50%, Mo: 0.80-1.50%, V: 0.30-0.60%, Co: 0.30-1.00%, Fe and incidental impurities: balance with the total amount of elements other than Fe and C not exceeding 5.0 atomic %.
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