ASTM A355-1989(2012) 标准详情
- 标准号:ASTM A355-1989(2012)
- 中文标题:渗氮合金钢棒的标准规格
- 英文标题:Standard Specification for Steel Bars, Alloys, for Nitriding
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1989
1.1 This specification covers alloy steel bars, suitable for surface hardening by nitriding, designated as Classes A, B, C, and D. Class A and Class D bars are general-purpose bars; Class B bars are free-machining bars; Class C bars contain 3.50 %
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