等级 | 化学成分 | 机械性能 | |||||||||||
C | Si | Mn | P | S | Ni | Cr | N | CY | Y.S | T.S | ELOG | HRB | |
% | % | % | % | % | % | % | % | % | N/mm2 | N/mm2 | % | ||
430 | ≤0.12 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 |
|
16~18 |
|
|
≥450 | ≥205 | ≥22 | ≤88 |
The specification of type 430 according with ASTM and JIS Standard |
钢带厚度允许偏差(GB/T3280-2007) |
||||
公称厚度 |
厚度允许偏差 单位:mm |
|||
宽度<125 |
125≤宽度<250 |
250≤宽度<600 |
600≤宽度<780 |
|
≥0.05~<0.10 |
±0.006 |
±0.001 |
±0.001 |
- |
≥0.01~<0.20 |
±0.008 |
±0.012 |
±0.015 |
±0.015 |
≥0.20~<0.30 |
±0.012 |
±0.015 |
±0.015 |
±0.020 |
≥0.30~<0.40 |
±0.015 |
±0.020 |
±0.020 |
±0.025 |
≥0.40~<0.60 |
±0.020 |
±0.025 |
±0.030 |
±0.025 |
≥0.60~<1.00 |
±0.025 |
±0.030 |
±0.035 |
±0.035 |
备注:t为公称厚度 |
分条公差 单位:mm |
||||||||
宽度/厚度 |
<0.59 |
0.6~0.8 |
0.8~1.0 |
1.0~1.25 |
1.25~1.6 |
1.6~2.0 |
2.0~2.5 |
2.5~3.15 |
<250 |
±0.04 |
±0.045 |
±0.05 |
±0.05 |
±0.06 |
±0.07 |
±0.08 |
±0.09 |
251~400 |
±0.04 |
±0.045 |
±0.05 |
±0.05 |
±0.06 |
±0.08 |
±0.08 |
±0.09 |
401~630 |
±0.04 |
±0.045 |
±0.05 |
±0.06 |
±0.06 |
±0.08 |
±0.09 |
±0.10 |
631~1000 |
±0.04 |
±0.05 |
±0.05 |
±0.06 |
±0.07 |
±0.09 |
±0.10 |
±0.11 |
1001~1250 |
±0.05 |
±0.05 |
±0.06 |
±0.07 |
±0.08 |
±0.10 |
±0.11 |
±0.12 |
1251~1524 |
±0.08 |
±0.09 |
±0.10 |
±0.12 |
±0.15 |
±0.17 |
±0.2 |
±0.25 |
切片公差 |
||
长度 |
长度公差 |
对角线公差 |
400~999 |
±0.3 |
≤0.5 |
1000~2438 |
±0.5 |
≤1.0 |
2349~3658 |
±0.8 |
≤1.0 |
3659~6000 |
±1.0 |
≤2.0 |
表面粗糙度加工等级 |
||
表面加工代号 |
表面粗糙度Ra |
加工方法 |
BA |
|
钢带冷轧后经过光亮热处理的表面 |
TR |
|
钢带冷轧后经过清洗的表面 |
HL |
|
用适当研磨粒度研磨出连续线条的轧辊轧制使钢带表面呈一定的纵向磨纹 |
S |
|
适用砂粒加工的轧辊轧制的钢带表面 |
80# |
0.8~1.0 |
用80#粒度研磨的轧辊轧制的表面 |
100# |
0.6~0.8 |
用100#粒度研磨的轧辊轧制的表面 |
150# |
0.4~0.6 |
用150#粒度研磨的轧辊轧制的表面 |
180# |
0.3~0.4 |
用180#粒度研磨的轧辊轧制的表面 |
220# |
0.15~0.3 |
用220#粒度研磨的轧辊轧制的表面 |
320# |
0.08~0.15 |
用320#粒度研磨的轧辊轧制的表面 |