易切削结构钢
|
耀日 |
钢号 |
C碳 |
Si硅 |
Mn锰 |
P磷≤ |
S硫≤ |
其他 |
|
1 |
SUM21 |
≤0.13 |
① |
0.70-1.00 |
0.07-0.12 |
0.16-0.23 |
- |
|
2 |
SUM22 |
≤0.13 |
① |
0.70-1.00 |
0.07-0.12 |
0.24-0.33 |
- |
|
3 |
SUM22L |
≤0.13 |
① |
0.70-1.00 |
0.07-0.12 |
0.24-0.33 |
Pb0.10-0.35 |
|
4 |
SUM23 |
≤0.09 |
① |
0.75-1.05 |
0.04-0.09 |
0.26-0.35 |
- |
|
5 |
SUM23L |
≤0.09 |
① |
0.75-1.05 |
0.04-0.09 |
0.26-0.35 |
Pb0.10-0.35 |
|
6 |
SUM24L |
≤0.15 |
① |
0.85-1.15 |
0.04-0.09 |
0.26-0.35 |
Pb0.10-0.35 |
|
7 |
SUM25 |
≤0.15 |
① |
0.90-1.40 |
0.07-0.12 |
0.30-0.40 |
- |
|
8 |
SUM31 |
0.14-0.20 |
① |
1.00-1.30 |
≤0.040 |
0.08-0.13 |
Pb0.10-0.35 |
|
9 |
SUM31L |
0.14-0.20 |
① |
1.00-1.30 |
≤0.040 |
0.08-0.13 |
- |
|
10 |
SUM32 |
0.12-0.20 |
① |
0.60-1.10 |
≤0.040 |
0.10-0.20 |
- |
|
11 |
SUM41 |
0.32-0.39 |
① |
1.35-1.65 |
≤0.040 |
0.08-0.13 |
- |
|
12 |
SUM42 |
0.37-0.45 |
① |
1.35-1.65 |
≤0.040 |
0.08-0.13 |
- |
|
13 |
SUM43 |
0.40-0.48 |
① |
1.35-1.65 |
≤0.040 |
0.24-0.33 |
- |
|
① 易切削结构钢的Si含量一般不作规定,必要时可由供需双方协商规定含量范围,如ω(Si)≤0.10%,ω(Si)0.10%-0.20%,ω(Si)0.15%-0.35%等。 |
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