爱普生压电喷头行业资讯
2024-05-03国外阀门材料常用技术标准 镍合金棒材和线材热轧圆形和方形棒材的尺寸允许偏差
| 规定尺寸的允许偏差,in.(mm) | 不圆度A或不方度B, in.(mm) | ||
| 上偏差(+) | 下偏差(-) | ||
| 1/4(6.35)~≤5/16(7.94)C、D | E | E | E |
| >5/16(7.94)~≤7/16(11.11)C、D | 0.006(0.15) | 0.006(0.15) | 0.009(0.23) |
| >7/16(11.11)~≤5/8(15.88)C、D | 0.007(0.18) | 0.007(0.18) | 0.010(0.25) |
| >5/8(15.88)~≤7/8(22.22) | 0.008(0.20) | 0.008(0.20) | 0.012(0.30) |
| >7/8(22.22)~≤1(25.40) | 0.009(0.23) | 0.009(0.23) | 0.013(0.33) |
| >1(25.40)~≤11/8(28.58) | 0.010(0.25) | 0.010(0.25) | 0.015(0.38) |
| >11/8(28.58)~≤11/4(31.75) | 0.011(0.28) | 0.011(0.28) | 0.016(0.41) |
| >11/4(31.75)~≤13/8(34.92) | 0.012(0.30) | 0.012(0.30) | 0.018(0.46) |
| >13/8(34.92)~≤11/2(38.10) | 0.014(0.36) | 0.014(0.36) | 0.021(0.53) |
| >11/2(38.10)~≤2(50.80) | 1/64(0.40) | 1/64(0.40) | 0.023(0.58) |
| >2(50.80)~≤21/2(63.50) | 1/32(0.79) | 0 | 0.023(0.58) |
| >21/2(63.50)~≤31/2(88.90) | 3/64(1.19) | 0 | 0.035(0.89) |
| >31/2(88.90)~≤41/2(114.30) | 1/16(1.59) | 0 | 0.046(1.17) |
| F>41/2(114.30))~≤51/2(139.70) | 5/64(1.98) | 0 | 0.058(1.47) |
| >51/2(139.70)~≤61/2(165.10) | 1/8(3.18) | 0 | 0.070(1.78) |
| >61/2(165.10)~≤8(203.20) | 5/32(3.97) | 0 | 0.085(2.18) |
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