厚度偏差 单位[mm] |
||||||||
公称厚度 |
等级A |
等级B |
等级C |
等级D |
||||
偏差下限 |
偏差上限 |
偏差下限 |
偏差上限 |
偏差下限 |
偏差上限 |
偏差下限 |
偏差上限 |
|
≥3 <5 |
-0.4 |
+0.8 |
-0.3 |
+0.9 |
0 |
+1.2 |
-0.6 |
+0.6 |
≥5 <8 |
-0.4 |
+1.1 |
-0.3 |
+1.2 |
0 |
+1.5 |
-0.75 |
+0.75 |
≥8 <15 |
-0.5 |
+1.2 |
-0.3 |
+1.4 |
0 |
+1.7 |
-0.85 |
+0.85 |
≥15 <25 |
-0.6 |
+1.3 |
-0.3 |
+1.6 |
0 |
+1.9 |
-0.95 |
+0.95 |
≥25 <40 |
-0.8 |
+1.4 |
-0.3 |
+1.9 |
0 |
+2.2 |
-1.1 |
+1.1 |
≥40 <80 |
-1.0 |
+1.8 |
-0.3 |
+2.5 |
0 |
+2.8 |
-1.4 |
+1.4 |
≥80 <150 |
-1.0 |
+2.2 |
-0.3 |
+2.9 |
0 |
+3.2 |
-1.6 |
+1.6 |
≥150 <250 |
-1.2 |
+2.4 |
-0.3 |
+3.3 |
0 |
+3.6 |
-1.8 |
+1.8 |
长度偏差 |
||
公称长度 |
偏差下限 |
偏差上限 |
<4000 |
0 |
+20 |
≥4000 <6000 |
0 |
+30 |
≥6000 <8000 |
0 |
+40 |
≥8000 <10000 |
0 |
+50 |
≥10000 <15000 |
0 |
+75 |
≥15000 <20000 |
0 |
+100 |
宽度偏差 |
||
公称宽度 |
偏差下限 |
偏差上限 |
≥600 <2000 |
0 |
+20 |
≥2000 <3000 |
0 |
+25 |
≥3000 |
0 |
+30 |
平整度偏差 等级N |
||||
公称厚度 |
测量长度 |
|||
低强度钢 Re≤460 MPa |
高强度钢 Re≤700MPa |
|||
1000 |
2000 |
1000 |
2000 |
|
≥3 <5 |
9 |
14 |
12 |
17 |
≥5 <8 |
8 |
12 |
11 |
15 |
≥8 <15 |
7 |
11 |
10 |
14 |
≥15 <25 |
7 |
10 |
10 |
13 |
≥25 <40 |
6 |
9 |
9 |
12 |
≥40 <250 |
5 |
8 |
8 |
11 |