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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