Steels having less than the eutectoid amount of carbon (less than 0.77%) are known as hypo-eutectoid steels.

含碳量少于共析体(低于0.77%)的钢称为亚共析钢。

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Steels shaving less than the eutectoid amount of carbon (less than 0.77%) are known as hypo-eutectoid steels.

含碳量少于共析体(低于0.77%)的钢称为亚共析钢。

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Alloy steels containing, by weight, 1.2% or less of carbon and 10.5% or more of chromium, with or without other elements.

按重量计含碳量在1.2%及以下，含铬量在10.5%及以上的合金钢，不论是否含有其他元素。

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Alloy steels containing, by weight, 1.2% or less of carbon and 10.5% or more of chromium, with or without other elements.

按重量计含碳量在1.2%及以下，含铬量在10.5%及以上的合金钢，不论是否含有其他元素。

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