国外阀门材料常用技术标准 镍合金棒材和线材为除去氧化皮和拉制润滑油最后表面处理的线材尺寸公差
规定尺寸,in.(mm) | 公差,in.(mm) | |
上偏差(+) | 下偏差(-) | |
1/2(12.70) | 0.004(0.10) | 0.004(0.10) |
<1/2(12.70)~≥5/16(7.94) | 0.003(0.08) | 0.003(0.08) |
<5/16(7.94)~≥0.044(1.12) | 0.002(0.05) | 0.002(0.05) |
<0.044(1.12)~≥0.033(0.84) | 0.0013(0.03) | 0.0013(0.03) |
<0.033(0.84)~≥0.024(0.61) | 0.0008(0.02) | 0.0008(0.02) |
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