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钢丝
钢丝的物理性能：
| 钢丝直径 mm |
抗拉强度 Kgf/mm2 |
弯曲,次 |
| 08F~10F |
15F~20 |
25~35 |
40~50 |
55~60 |
08F~10F |
15F~20 |
25~35 |
40~50 |
55~60 |
| 不小于 |
不小于 |
| 0.20~0.75 |
75 |
80 |
100 |
110 |
120 |
-- |
-- |
-- |
-- |
-- |
| 0.75~0.10 |
70 |
75 |
90 |
100 |
110 |
6 |
6 |
6 |
5 |
5 |
| 1.0~3.0 |
65 |
70 |
80 |
90 |
100 |
6 |
6 |
5 |
4 |
4 |
| 3.0~6.0 |
60 |
65 |
70 |
80 |
90 |
5 |
5 |
5 |
4 |
4 |
| 6.0~10.0 |
55 |
60 |
65 |
75 |
80 |
5 |
4 |
3 |
2 |
2 |
| 牌号 |
力学性能 |
| 抗拉强度 Kgf/mm2 |
伸长率 % |
收缩率 % |
| 10 |
45~70 |
8 |
50 |
| 15 |
50~75 |
8 |
40 |
| 20 |
50~75 |
7.5 |
40 |
| 25 |
55~80 |
7 |
40 |
| 30 |
55~80 |
7 |
35 |
| 35 |
60~85 |
6.5 |
35 |
| 40 |
60~85 |
6 |
35 |
| 45 |
65~90 |
6 |
330 |
| 50 |
65~90 |
6 |
30 |
| 65 |
75~95 |
9 |
35 |
| 70 |
75~95 |
8 |
30 |
| 85 |
80~100 |
6 |
30 |
化学成份：
| 牌号 |
碳(C)% |
硅(Si)% |
锰(Mn)% |
铬(Cr)% |
其它元素% |
| 65 |
0.62~0.70 |
0.17~0.37 |
0.50~0.80 |
≤0.25 |
------ |
| 70 |
0.62~0.75 |
0.50~0.80 |
≤0.25 |
------ |
| 85 |
0.82~0.90 |
0.50~0.80 |
≤0.25 |
------ |
| 65Mn |
0.62~0.70 |
0.90~1.20 |
≤0.25 |
------ |
| 55Si2Mn |
0.52~0.60 |
1.50~2.00 |
0.60~0.90 |
≤0.35 |
硼0.0005~0.0040 |
| 55Si2MnB |
0.52~0.60 |
0.60~0.90 |
≤0.35 |
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