BS 4490-1969 标准详情
- 标准号:BS 4490-1969
- 中文标题:钢粒度的显微照相测定方法
- 英文标题:methods for the determination of the austenitic grain size of steel
- 标准类别:英国标准
- 发布日期:
Methods, depending on steel composition, of determination by comparison with standard charts. Test piece preparation, description of methods, measurement of grain size , reporting, standard grain size charts. Appendix gives etching reagents.
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