SAE J 422-1983 显微测定钢中的杂质

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标准号:SAE J 422-1983
中文标准名称:显微测定钢中的杂质
英文标准名称:Microscopic Determination of Inclusions in Steels
标准类型:H26
发布日期:1983/12/1 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:H26
国际标准分类号:77.040.20
引用标准:ASTM E 45-1960
适用范围:This recommended microscopic practice for evaluating the inclusion content in steel has been developed as a practical method of quantitatively determining the degree of cleanliness of steel. This method has been established as a reasonable control for steel mill operations and acceptance for production manufacturing. It has been widely accepted for carbon and alloy steel bars, billets, and slabs. Exceptions are resulfurized grades which are outside the limits of these photomicrographs and the high carbon bearing quality steels which are generally classified using ASTM E 45- 60T, Method A, Jernkontoret charts.

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