5.5 机加工交货钢材的尺寸、外形及允许偏差.....................7
5.6 重量............................................................................8
6、技术要求........................................................................8
6.1 牌号及化学成分...........................................................8
6.2 冶炼方法......................................................................15
6.3 交货状态......................................................................15
6.4 交货硬度......................................................................15
6.5 低倍组织......................................................................20
6.6 显微组织......................................................................21
6.7 非金属夹杂物...............................................................22
6.8 脱碳层.........................................................................23
6.9 相对磁导率..................................................................23
6.10 超声检测.....................................................................24
6.11 表面质量.....................................................................25
6.12 特殊要求.....................................................................25
7、实验方法.........................................................................25
8、检验规则.........................................................................26
8.1 检查与验收...................................................................26
8.2 组批规则......................................................................26
8.3 取样数量和取样部位.....................................................26
8.4 复验和判定规则............................................................27
9、包装、标志和质量证明书.................................................27
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