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国内阀门材料常用技术标准 平面扁钢公称尺寸允许偏差_阀门标准
国内阀门材料常用技术标准 平面扁钢公称尺寸允许偏差
| 类别 | 截面公称尺寸 | 允 许 偏 差 | ||
| 宽度≤50 | 宽度＞50～100 | 宽度＞100～160 | ||
| 厚度 | ＜7 | ±0.15 | ±0.18 | ±0.30 |
| 7～12 | ±0.20 | ±0.25 | ±0.35 | |
| ＞12～20 | ±0.25 |
+0.25 -0.30 |
±0.40 | |
| ＞20～30 | — | ±0.35 | ±0.40 | |
| ＞30～40 | — | ±0.40 | ±0.45 | |
| 宽度 | ≤50 | ±0.55 | ||
| ＞50～100 | ±0.80 | |||
| ＞100～160 | ±1.00 | |||
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