镇静钢的缺点是有集中缩孔，成材率低，价格较高。
Calm steel disadvantage is concentrated shrinkage, low yield, high price.
钢板应为全镇静钢且经奥氏体精细粒度处理。规格化的，规格化及回火的或淬火及回火。(译文请指正)。
The plates shall be fully killed and shall be fine austenitic grain treated. They shall be normalized, normalized and tempered or quenched and tempered.
镇静钢板是由普通碳素结构钢镇静钢热轧制成的钢板。
The steel plate is made of ordinary carbon structural steel.
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