收藏词条 编辑词条 热连轧钢带和钢板(GB 2519-81)
1、钢板和钢带公称厚度(mm)
1.1,1.25,1.4,1.5,1.8,2.0,2.5,2.8,3.0,3.2,3.5,3.8,4.0,4.5,5.0,5.5,6.0,6.5,7.0,8.0,10.0,11.0,12.0,13.0
2、钢板和钢带公称宽度(mm)
700,750,800,850,900,950,1000,1050,1100,1150,1200,1250,1300,1350,1400,1450,1500,1550
3、钢板公称长度(mm)
2000,2500,3000,3500,4000,4500,5000,5500,6000,6500,7000,8000,9000,10000,11000,12000
4、钢板和钢带允许偏差
单位:mm
厚度 |
厚度允许偏差 |
宽度 |
宽度允许偏差 |
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宽度 |
厚度 |
|||||||||
≤1000 |
>1000-1200 |
>1200-1500 |
≤6.0 |
>6.0 |
||||||
轧制边 |
切边 |
轧制边 |
切边 |
|||||||
1.2-1.25 |
±0.13 |
±0.13 |
— |
700-<1000 |
+25 |
+10 |
+25 |
+10 |
||
1.4 |
±0.15 |
±0.15 |
— |
1000-<1250 |
+30 |
+30 |
+10 |
|||
1.5 |
±0.15 |
±0.15 |
±0.15 |
1250-1550 |
+35 |
+35 |
+15 |
|||
1.6-1.8 |
±0.16 |
±0.16 |
±0.16 |
宽度 |
纵切钢带宽度允许偏差 |
|||||
2.0 |
+0.15-0.18 |
±0.18 |
±0.18 |
|||||||
2.2 |
+0.15-0.19 |
±0.19 |
±0.19 |
厚 度 |
||||||
2.5 |
+0.16-0.20 |
±0.22 |
±0.20 |
|||||||
2.8-3.0 |
+0.17-0.22 |
±0.25 |
±0.22 |
≤4.0 |
>4.0-6.0 |
>6.0 |
||||
3.2-3.5 |
+0.18-0.25 |
±0.30 |
±0.25 |
<160 |
±0.5 |
±0.8 |
±1.0 |
|||
3.8-4.0 |
+0.20-0.30 |
+0.40-0.50 |
±0.30 |
160-250 |
±0.8 |
±1.0 |
±1.2 |
|||
4.5-5.5 |
+0.30-0.50 |
+0.40-0.50 |
±0.50 |
>250-700 |
±1.0 |
±1.0 |
±1.2 |
|||
6.0-7.0 |
+0.30-0.60 |
+0.30-0.60 |
+0.40-0.60 |
长度 |
长度允许偏差 |
|||||
8.0-10.0 |
+0.20-0.80 |
+0.30-0.80 |
+0.30-0.80 |
≤6000 |
+25 |
|||||
11.0-13.0 |
+0.20-0.80 |
+0.30-0.80 |
+0.30-0.80 |
>6000 |
+30 |
|||||
5、标记示例
用RJ216牌号轧制的10*1200*
10*1200*4500-GB 2519-81
RJ216-GB 2517-81