收藏词条 编辑词条 GB/T 2517-1981一般结构用热连轧钢板和钢带的允许偏差
创建时间：2008-12-05
GB/T 2517-1981一般结构用热连轧钢板和钢带的允许偏差
允许偏差
钢板和钢带的厚度允许偏差应符合表1的规定；钢板和钢带的宽度允许偏差应符合表2的规定；纵切钢带宽度允许偏差应符合表3的规定；钢板长度允许偏差直符合表4的规定。
表1
|
厚度, mm |
允许偏差, mm |
||
|
宽度, mm |
|||
|
≤1000 |
>1000～1200 |
>1200～1550 |
|
|
1.2～1.25 |
±0.13 |
±0.13 |
- |
|
1.4 |
±0.15 |
±0.15 |
- |
|
1.5 |
±0.15 |
土0.15 |
±O.15 |
|
1.6～1.8 |
±0.16 |
±0.16 |
±0.16 |
|
2.0 |
+0.15 -0.8 |
±0.18 |
±0.18 |
|
2.2 |
+0.15 -0.19 |
±0.19 |
±0.19 |
|
2.5 |
+0.16 -0.20 |
±0.20 |
±0.20 |
|
2.8～3.0 |
+0.17 -0.22 |
±0.22 |
±0.22 |
|
3.2～3.5 |
+0.18 -0.25 |
±0.25 |
±0.25 |
|
3.8～4.O |
+0.20 -0.30 |
±0.30 |
±0.30 |
|
4.5～5.5 |
+0.30 -0.50 |
+0.40 -0.50 |
±0.50 |
|
6.0～7.0 |
+O.30 -0.60 |
+0.40 -0.60 |
+0.40 -0.6 |
|
8.0～10.0 |
+0.20 -0.80 |
+0.30 -0.80 |
+0.30 -0.80 |
|
11.0～13.0 |
+0.20 -0.80 |
+0.30 -0.80 |
+0.30 -0.80 |
表2
|
宽度,mm |
允许偏差,mm |
|||
|
厚度,mm |
||||
|
≤6.0 |
>6.0 |
|||
|
轧制边 |
切 边 |
轧制边 |
切 边 |
|
|
700～<1000 |
25 |
10 |
25 |
10 |
|
1000～<1250 |
30 |
10 |
30 |
10 |
|
1250～1550 |
35 |
10 |
35 |
15 |
表3
|
宽度 |
允许偏差 |
||
|
厚度 |
|||
|
≤4.0 |
>4.0～6.0 |
>6.0 |
|
|
<160 |
±0.5 |
±0.8 |
±1.0 |
|
160～250 |
±0.8 |
±1.0 |
±1.2 |
|
>250～700 |
±1.0 |
±1.0 |
±1.2 |
表4
|
长度 |
允许偏差 |
|
≤6000 |
25 |
|
>6000 |
30 |