标准包含了对扁平制品的极限偏差和形状公差公差的要求。适用于由非合金钢和合金钢制成的轧制宽度小于600mm成卷的冷轧带钢以及由此纵切的厚度小于等于10mm的条钢,但不包括不锈钢和耐热钢。
不适用于的冷轧扁平制品如下:
* 冷轧的非晶格取向电工钢板和带钢 EN 10106
* 晶格取向电工钢板和带钢 EN 10107
* 冷轧的非最终退火的电工钢板和带钢 EN 10126/EN 10165
* 不带软钢镀层和用于冷成形带较高屈服点钢的镀层冷轧扁平制品 EN 10131
* 成卷的冷轧极薄钢板 EN 10205
公称厚度 mm | 宽度为公称宽度时厚度的极限偏差 /mm | |||||||||
<125 | ≥125<250 | ≥250<600 | ||||||||
> | ≤ | normal A | fine B | Precision C | normal A | fine B | Precision C | normal A | fine B | Precision C |
| 0.10 | ±0.008 | ±0.006 | ±0.004 | ±0.010 | ±0.008 | ±0.005 | ±0.015 | ±0.012 | ±0.008 |
0.10 | 0.15 | ±0.010 | ±0.008 | ±0.005 | ±0.015 | ±0.012 | ±0.010 | ±0.020 | ±0.015 | ±0.010 |
0.15 | 0.25 | ±0.015 | ±0.012 | ±0.010 | ±0.020 | ±0.015 | ±0.010 | ±0.025 | ±0.015 | ±0.012 |
0.25 | 0.40 | ±0.020 | ±0.015 | ±0.010 | ±0.025 | ±0.020 | ±0.015 | ±0.030 | ±0.020 | ±0.015 |
0.40 | 0.60 | ±0.025 | ±0.020 | ±0.015 | ±0.030 | ±0.025 | ±0.015 | ±0.035 | ±0.025 | ±0.020 |
0.60 | 1.00 | ±0.030 | ±0.025 | ±0.015 | ±0.035 | ±0.030 | ±0.020 | ±0.040 | ±0.030 | ±0.025 |
1.00 | 1.50 | ±0.035 | ±0.030 | ±0.020 | ±0.040 | ±0.035 | ±0.025 | ±0.050 | ±0.040 | ±0.030 |
1.50 | 2.50 | ±0.045 | ±0.035 | ±0.025 | ±0.050 | ±0.040 | ±0.030 | ±0.060 | ±0.045 | ±0.035 |
2.50 | 4.00 | ±0.055 | ±0.040 | ±0.030 | ±0.060 | ±0.050 | ±0.035 | ±0.075 | ±0.055 | ±0.040 |
4.00 | 6.00 | ±0.070 | ±0.050 | ±0.035 | ±0.075 | ±0.060 | ±0.040 | ±0.090 | ±0.065 | ±0.045 |
6.00 | 8.00 | ±0.080 | ±0.060 | ±0.040 | ±0.090 | ±0.070 | ±0.045 | ±0.100 | ±0.075 | ±0.050 |
8.00 | 10.00 | ±0.090 | ±0.070 | ±0.045 | ±0.100 | ±0.080 | ±0.050 | ±0.110 | ±0.085 | ±0.055 |
公称宽度 mm | 宽度的极限偏差 mm |
<40 | 0/+1.6 |
≥40<80 | 0/+2.0 |
≥80<125 | 0/+2.4 |
≥125<250 | 0/+3.0 |
≥250<400 | 0/+3.6 |
≥400<500 | 0/+4.2 |
≥500<600 | 0/+4.5 |
* 带特殊棱SK制品的允许宽度偏差应在订货时协商。 |
公称厚度 mm | 宽度为公称宽度时宽度的极限偏差 /mm | ||||||
<125 | ≥125<250 | ≥250<600 | |||||
> | ≤ | normal A | fine B | normal A | fine B | normal A | fine B |
| 0.60 | ±0.15 | ±0.10 | ±0.20 | ±0.13 | ±0.25 | ±0.18 |
0.60 | 1.50 | ±0.20 | ±0.13 | ±0.25 | ±0.18 | ±0.30 | ±0.20 |
1.50 | 2.50 | ±0.25 | ±0.18 | ±0.30 | ±0.20 | ±0.35 | ±0.25 |
2.50 | 4.00 | ±0.30 | ±0.20 | ±0.35 | ±0.25 | ±0.40 | ±0.30 |
4.00 | 6.00 | ±0.35 | ±0.25 | ±0.40 | ±0.30 | ±0.45 | ±0.35 |
6.00 | 8.00 | ±0.45 |
| ±0.50 |
| ±0.55 |
|
8.00 | 10.00 | ±0.50 |
| ±0.55 |
| ±0.60 |
|
* 调质状态的冷轧带钢宽度的极限偏差及制品厚度大于6mm时的测量宽度方法应在订货时协商。 |
公称长度L mm | 极限偏差 /mm | |
A级 | B级 | |
L≤1000 | +10 | +6 |
1000<L≤2500 | +0.01×L | +6 |
L>2500 | +0.01×L | +0.003×L |
公称宽度w mm | 直度公差 /mm | |
A级 | B级 | |
10≤w<25 | 5.00 | 2.00 |
25≤w<40 | 3.50 | 1.50 |
40≤w<125 | 2.50 | 1.25 |
125≤w<600 | 2.00 | 1.00 |
* 表中数值只适用于宽度至少是厚度10倍的冷轧带钢。对于调质的冷轧带钢,可在订货时通过商定降低直度公差。 |
如果测量长度为1000mm不合适,直度公差的等效值可按公式计算:直度公差=(非标准长度)2 / (标准长度)2 × 表中的公差值。