强度等級级 |
4.8 |
6.8 |
8.8 |
10.9 |
12.9 | ||||||
最小破断强度 |
392MPa |
588MPa |
784MPa |
941MPa |
1176MPa | ||||||
材質质 |
一般構造用钢 |
机械構造用钢 |
铬鉻鋁合金钢 |
铝鎳鉻鋁合金钢 |
铬鎳鉻合金钢 | ||||||
螺栓 |
螺帽 |
扭力值 |
扭力值 |
扭力值 |
扭力值 |
扭力值 | |||||
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 |
|
|
|
|
68 |
100 |
580 |
5684 |
870 |
8526 |
1100 |
10780 |
|
|
|
|
72 |
105 |
660 |
6468 |
1000 |
9800 |
1290 |
12642 |
|
|
|
|
76 |
110 |
750 |
7350 |
1100 |
10780 |
1500 |
1470 |
|
|
|
|
80 |
115 |
830 |
8143 |
1250 |
12250 |
1850 |
18130 |
|
|
|
|
85 |
120 |
900 |
8820 |
1400 |
13720 |
2250 |
22050 |
|
|
|
|
90 |
130 |
1080 |
10584 |
1650 |
16170 |
2500 |
24500 |
|
|
|
|
100 |
145 |
1400 |
13720 |
2050 |
20090 |
|
|
|
|
|
|
110 |
155 |
1670 |
16366 |
2550 |
24990 |
|
|
|
|
|
|
120 |
175 |
2030 |
19894 |
3050 |
29890 |
|
|
|
|
|
|
2、建議鎖緊扭力值爲:表中數值×(70-80)%
例如:M48,8.8級螺栓,則鎖緊扭力爲:400 × 80% = 320KG
3、拆松力矩爲鎖緊力矩的1.5~2.5倍。
例如:上例鎖緊力矩爲320KGM,則其拆松力矩約爲 320×(1.5~2.5)= 480~800KGM