国外阀门材料常用技术标准 镍合金棒材和线材冷精轧圆形棒材尺寸允许偏差
规定尺寸,in.(mm) | 规定尺寸的允许偏差,in.(mm)A、B | |
上偏差(+) | 下偏差(-) | |
>1/2(12.70)~≤1(25.40) | 0.002(0.05) | 0.002(0.05) |
>1(25.40)~≤11/2(38.10) | 0.0025(0.06) | 0.0025(0.06) |
>11/2(38.10)~≤4(101.60)C | 0.003(0.08) | 0.003(0.08) |
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