|
螺栓预紧力矩推荐表（液压扳手选型用）
|
强度等级
|
4.8
|
6.8
|
8.8
|
10.9
|
12.9
|
|
最小破断强度
|
392MPa
|
588MPa
|
784MPa
|
941MPa
|
1176MPa
|
|
材质
|
一般构造用钢
|
机械构造用钢
|
铬铝合金钢
|
镍铬铝合金钢
|
镍铬合金钢
|
|
螺栓
|
螺母
|
扭距值
|
扭距值
|
扭距值
|
扭距值
|
扭距值
|
|
KGM
|
NM
|
KGM
|
NM
|
KGM
|
NM
|
KGM
|
NM
|
KGM
|
NM
|
|
M14
|
22mm
|
7
|
69
|
10
|
98
|
14
|
137
|
17
|
165
|
23
|
225
|
|
16
|
24
|
10
|
98
|
14
|
137
|
21
|
206
|
25
|
247
|
36
|
363
|
|
18
|
27
|
14
|
137
|
21
|
206
|
29
|
284
|
35
|
341
|
49
|
480
|
|
20
|
30
|
18
|
176
|
28
|
296
|
41
|
402
|
58
|
569
|
69
|
480
|
|
22
|
32
|
23
|
225
|
34
|
333
|
55
|
539
|
78
|
765
|
93
|
911
|
|
24
|
36
|
32
|
314
|
48
|
470
|
70
|
686
|
100
|
981
|
120
|
1176
|
|
27
|
41
|
45
|
441
|
65
|
637
|
105
|
1029
|
150
|
1472
|
180
|
1764
|
|
30
|
46
|
60
|
588
|
90
|
882
|
125
|
1225
|
200
|
1962
|
240
|
2352
|
|
33
|
50
|
75
|
735
|
115
|
1127
|
150
|
1470
|
210
|
2060
|
250
|
2450
|
|
36
|
55
|
100
|
980
|
150
|
1470
|
180
|
1764
|
250
|
2453
|
300
|
2940
|
|
39
|
60
|
120
|
1176
|
180
|
1764
|
220
|
2156
|
300
|
2943
|
370
|
3626
|
|
42
|
65
|
155
|
1519
|
240
|
2352
|
280
|
2744
|
390
|
3826
|
470
|
4606
|
|
45
|
70
|
180
|
1764
|
280
|
2744
|
320
|
3136
|
450
|
4415
|
550
|
5390
|
|
48
|
75
|
230
|
2254
|
350
|
3430
|
400
|
3920
|
570
|
5592
|
680
|
6664
|
|
52
|
80
|
280
|
2744
|
420
|
4116
|
480
|
4704
|
670
|
6573
|
850
|
8330
|
|
56
|
85
|
360
|
3528
|
530
|
5149
|
610
|
5978
|
860
|
8437
|
1050
|
10290
|
|
60
|
90
|
410
|
4018
|
610
|
5978
|
790
|
7742
|
1100
|
10791
|
1350
|
13230
|
|
64
|
95
|
510
|
4998
|
760
|
7448
|
900
|
8820
|
1224
|
11998
|
1530
|
14994
|
|
68
|
100
|
580
|
5684
|
870
|
8526
|
1100
|
10780
|
1392
|
13645
|
1740
|
17053
|
|
72
|
105
|
660
|
6468
|
1000
|
9800
|
1290
|
12642
|
1584
|
15527
|
1980
|
19405
|
|
76
|
110 | |
