不锈钢热轧等边角钢尺寸允许偏差 ( 摘自 GB / T4227 — 1984 ) ( mm )
|
边 A × B |
边 允许偏差 |
厚度 t |
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|
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
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|
厚度允许偏差 |
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|
20 × 20 |
± 1 . 5 |
± 0 . 4 |
|
|
|
|
|
|
|
|
25 × 25 |
± 1 . 5 |
± 0 . 5 |
± 0 . 5 |
|
|
|
|
|
|
|
30 × 30 |
± 2 . 0 |
± 0 . 5 |
± 0 . 5 |
± 0 . 5 |
± 0 . 5 |
|
|
|
|
|
40 × 40 |
± 2 . 0 |
± 0 . 6 |
± 0 . 6 |
± 0 . 6 |
± 0 . 6 |
|
|
|
|
|
50 × 50 |
± 2 . 0 |
|
± 0 . 6 |
± 0 . 6 |
± 0 . 6 |
|
|
|
|
|
60 × 60 |
± 3 . 0 |
|
|
± 0 . 6 |
± 0 . 6 |
|
|
|
|
|
65 × 65 |
± 3 . 0 |
|
|
± 0 . 6 |
± 0 . 6 |
± 0 . 7 |
± 0 . 7 |
|
|
|
70 × 70 |
± 3 . 0 |
|
|
|
± 0 . 7 |
± 0 . 7 |
± 0 . 7 |
|
|
|
75 × 75 |
± 3 . 0 |
|
|
|
± 0 . 7 |
± 0 . 7 |
± 0 . 7 |
± 0 . 7 |
|
|
80 × 80 |
± 3 . 0 |
|
|
|
± 0 . 7 |
± 0 . 7 |
± 0 . 7 |
± 0 . 7 |
|
|
90 × 90 |
± 3 . 0 |
|
|
|
|
|
± 0 . 7 |
± 0 . 7 |
± 0 . 8 |
|
100 × 100 |
± 4 . 0 |
|
|
|
|
|
± 0 . 7 |
± 0 . 7 |
± 0 . 8 |
