国外阀门材料常用技术标准 镍合金棒材和线材冷精轧扁条的宽度和厚度允许偏差
宽度 in.(mm) | 宽度允许的上下偏差,in.(mm)A | |
厚度≤1/4(6.35) | 厚度>1/4(6.35) | |
3/8(9.52)~≤1(25.40) | 0.004(0.10) | 0.002(0.05) |
>1(25.40)~≤2(50.80) | 0.006(0.15) | 0.003(0.08) |
>2(50.80)~≤3(76.20) | 0.008(0.20) | 0.004(0.10) |
>3(76.20)~≤41/2(114.30) | 0.010(0.25) | 0.005(0.13) |
厚度 in.(mm) | 厚度允许的上下偏差,in.(mm)A | |
1/8(3.18)~≤1(25.40) | 0.002(0.05) | |
>1(25.40)~≤2(50.80) | 0.003(0.08) | |
>2(50.80)~≤3(76.20) | 0.004(0.10) | |
>3(76.20)~≤41/2(114.30) | 0.005(0.13) |
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