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主要用途:制造在冷状态下液卷而不经淬火的特殊弹簧
标准YB647
|
钢丝直径(毫米) |
B组 |
C组 |
D组 |
|
抗拉强度(N/mm2)
|
M
|
N |
抗拉强度(N/mm2)
|
M
|
N |
抗拉强度(N/mm2)
|
M
|
N |
|
不小于(次)
|
不小于(次)
|
不小于(次)
|
| 0.20 |
290-320 |
|
25 |
275-300 |
|
28
|
260-285 |
|
30
|
| 0.25 |
290-320 |
|
23 |
275-300 |
|
25
|
260-285 |
|
28
|
| 0.30 |
290-320 |
|
21 |
275-300 |
|
24
|
260-285 |
|
27
|
| 0.35 |
290-320 |
|
19 |
275-300 |
|
22
|
260-285 |
|
25
|
| 0.40 |
290-320 |
|
18 |
275-295 |
|
20
|
260-280 |
|
23
|
| 0.45 |
290-320 |
|
16 |
275-295 |
|
18
|
260-280 |
|
21
|
| 0.50 |
290-320 |
|
15 |
275-295 |
|
18
|
260-280 |
|
21
|
| 0.55 |
290-320 |
|
15 |
275-295 |
|
18
|
260-280 |
|
21
|
| 0.60 |
285-315 |
|
15 |
270-290 |
|
18
|
255-275 |
|
21
|
| 0.65 |
285-315 |
|
15 |
270-290 |
|
18
|
255-275 |
|
21
|
| 0.70 |
285-315 |
|
15 |
270-290 |
|
18
|
255-275 |
|
21
|
| 0.75 |
285-315 |
|
15 |
270-290 |
|
18
|
255-275 |
|
20
|
| 0.80 |
285-315 |
9 |
15 |
270-290 |
12
|
18
|
255-275 |
13
|
20
|
| 0.90 |
280-310 |
8 |
14 |
265-285 |
10
|
18
|
250-270 |
11
|
20
|
| 1.00 |
280-310 |
7 |
14 |
265-285 |
8
|
18
|
250-270 |
9
|
20
|
| 1.10 |
|
|
|
265-285 |
7
|
18
|
250-270 |
8
|
19
|
| 1.20 |
|
|
|
255-280 |
6
|
18
|
240-260 |
7
|
19
|
| 1.30 |
|
|
|
255-280 |
16
|
18
|
240-260 |
18
|
19
|
| 1.40 |
|
|
|
245-270 |
13
|
18
|
230-250 |
16
|
19
|
| 1.50 |
|
|
|
245-270 |
12
|
18
|
230-250 |
14
|
19
|
|
|
|
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