类型 |
名称 |
性能等级 |
规格 |
连接副组成 |
GB/T1228-91 |
钢结构用高强度大六角头螺栓 |
10.9S 8.8S |
M12-M30 |
一件螺栓;一件螺母;二件垫圈 |
GB/T1229-91 |
钢结构用高强度大六角螺母 | |||
GB/T1230-91 |
钢结构用高强度垫圈 | |||
GB/T1231-91 |
钢结构用高强度大六角头螺栓、 大六角螺母、垫圈技术条件 | |||
GB/T3632-1995 |
钢结构用扭剪型高强度螺栓连接副 |
10.9S |
M16-M24 |
一件螺栓;一件螺母;二件垫圈 |
GB/T3633-1995 |
钢结构用扭剪型高强度螺栓连接副技术条件 |
类型 |
性能等级 |
螺纹规格 |
选用材料 |
螺栓 |
10.9S |
M12~M24 |
20MntiB |
M27~M30 |
35VB | ||
8.8S |
M12~M16 |
35# | |
M20~M24 |
20MnTib | ||
M27~M30 |
35VB | ||
螺母 |
8H 10H |
M12~M30 |
35# |
垫圈 |
35~45 HRC |
12~30 |
45# |
材料 |
C% |
Si% |
Mn% |
Ti% |
V% |
B% |
P% |
S% |
20MnTiB |
0.17~0.24 |
0.17~0.37 |
1.30~1.60 |
0.04~0.10 |
0 |
0.0005~0.0035 |
≤0.035 |
≤0.035 |
35VB |
0.31~0.37 |
0.17~0.37 |
0.50~0.90 |
0 |
0.05~0.12 |
0.001~0.004 |
≤0.04 |
≤0.04 |
35# |
0.32~0.40 |
0.17~0.37 |
0.50~0.90 |
0 |
0 |
0 |
≤0.035 |
≤0.035 |
45# |
0.42~0.50 |
0.17~0.37 |
0.50~0.90 |
0 |
0 |
0 |
≤0.035 |
≤0.035 |
性能等级 |
抗拉力强度 σb MPa |
屈服度σ0.2 MPa |
伸长率δ5 % |
收缩率ψ % |
min | ||||
10.9S |
1040~1240 |
940 |
10 |
42 |
8.8S |
830~1030 |
660 |
12 |
45 |
性能等级 |
洛氏硬度 HRC |
维氏硬度 HV30 | ||
min |
max |
min |
max | |
109S |
33 |
39 |
312 |
367 |
8.8S |
24 |
31 |
249 |
296 |
罗纹规格d |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 | |
应懒力载面积mm2 |
84.3 |
157 |
245 |
303 |
353 |
459 |
561 | |
拉力载荷 KN |
10.9S |
877.7~104.5 |
163~195 |
255~304 |
315~376 |
367~438 |
477~569 |
583~696 |
8.8S |
70.0~86.8 |
130~162 |
203~252 |
251~312 |
293~364 |
381~473 |
466~578 |
罗纹规格D |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 | |
确保载荷 KN |
10H |
87.7 |
163 |
255 |
315 |
367 |
477 |
583 |
8H |
70.0 |
130 |
203 |
251 |
293 |
381 |
466 |
性能 等级 |
洛氏硬度 |
维氏硬度 | ||
min |
max |
min |
max | |
10H |
98HRB |
28HRC |
222 |
274 |
8H |
85HRB |
28HRC |
206 |
274 |
螺纹规格d |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 | ||||||||
螺距p |
1.75 |
2 |
2.5 |
2.5 |
3 |
3 |
3.5 | ||||||||
c |
max |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 | |||||||
min |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 | ||||||||
da |
max |
15.23 |
19.23 |
24.32 |
26.32 |
28.32 |
32.84 |
35.84 | |||||||
ds |
max |
12.43 |
16.43 |
20.52 |
22.52 |
24.52 |
27.84 |
30.84 | |||||||
min |
11.75 |
15.57 |
19.48 |
21.48 |
23.48 |
26.16 |
29.16 | ||||||||
dw |
min |
19.2 |
24.9 |
31.4 |
33.3 |
38.0 |
42.8 |
46.5 | |||||||
e |
min |
22.78 |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 | |||||||
K |
公称 |
7.5 |
10 |
12.5 |
14 |
15 |
17 |
18.7 | |||||||
max |
7.95 |
10.75 |
13.40 |
14.90 |
15.90 |
17.90 |
19.75 | ||||||||
min |
7.05 |
9.25 |
11.60 |
13.10 |
14.10 |
16.10 |
17.65 | ||||||||
r |
min |
1.0 |
1.0 |
1.5 |
1.5 |
1.5 |
2.0 |
2.0 | |||||||
s |
max |
21 |
27 |
34 |
36 |
41 |
46 |
50 | |||||||
min |
20.16 |
26.16 |
33 |
35 |
40 |
45 |
49 | ||||||||
b |
L公称 | <45 |
≥45 | <55 |
≥55 | <65 |
≥65 | <70 |
≥70 | <75 |
≥75 | <80 |
≥80 | <85 |
≥85 |
公称 |
25 |
30 |
30 |
35 |
35 |
40 |
40 |
45 |
45 |
50 |
50 |
55 |
55 |
60 |
螺纹规格D |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 | ||||
螺距P |
1.75 |
2 |
2.5 |
2.5 |
3 |
3 |
3.5 | ||||
c |
max |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 | |||
min |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 | ||||
da |
max |
13 |
17.3 |
21.6 |
23.8 |
25.9 |
29.1 |
32.4 | |||
min |
12 |
16 |
20 |
22 |
24 |
27 |
30 | ||||
dw |
min |
19.2 |
24.9 |
31.4 |
33.3 |
38.0 |
42.8 |
46.5 | |||
e |
min |
22.78 |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 | |||
m |
max |
12.3 |
17.1 |
20.7 |
23.6 |
24.2 |
27.6 |
30.7 | |||
min |
11.87 |
16.4 |
19.4 |
22.3 |
22.9 |
26.3 |
29.1 | ||||
s |
max |
21 |
27 |
34 |
36 |
41 |
46 |
50 | |||
min |
20.16 |
26.16 |
33 |
35 |
40 |
45 |
49 | ||||
规格(螺纹大径) |
12 |
16 |
20 |
22 |
24 |
27 |
30 | |
d1 |
max |
13.43 |
17.43 |
21.52 |
23.52 |
25.52 |
28.52 |
31.52 |
min |
13 |
17 |
21 |
23 |
25 |
28 |
31 | |
d2 |
max |
25 |
33 |
40 |
42 |
47 |
52 |
56 |
min |
23.7 |
31.4 |
38.4 |
40.4 |
45.4 |
50.1 |
54.1 | |
s |
公称 |
3.0 |
4.0 |
4.0 |
5.0 |
5.0 |
5.0 |
5.0 |
max |
3.8 |
4.8 |
4.8 |
5.8 |
5.8 |
5.8 |
5.8 | |
min |
2.5 |
3.5 |
3.5 |
4.5 |
4.5 |
4.5 |
4.5 | |
d3 |
max |
16.03 |
20.03 |
25.12 |
27.12 |
29.12 |
33.64 |
36.64 |
min |
15.23 |
19.23 |
24.32 |
26.32 |
28.32 |
32.84 |
35.84 |
螺纹规格d |
M16 |
M20 |
M22 |
M24 | |
螺距p |
2 |
2.5 |
2.5 |
3 | |
da |
max |
18.83 |
24.4 |
26.4 |
28.4 |
ds |
max |
16.43 |
20.52 |
22.52 |
24.52 |
min |
15.57 |
19.48 |
21.48 |
23.48 | |
dw |
min |
27.9 |
34.5 |
38.5 |
41.5 |
dk |
max |
30 |
37 |
41 |
44 |
K |
公称 |
10 |
13 |
14 |
15 |
max |
10.57 |
13.9 |
14.9 |
15.9 | |
min |
9.25 |
12.1 |
13.1 |
14.1 | |
K' |
min |
12 |
14 |
15 |
16 |
K" |
max |
17 |
19 |
21 |
23 |
r |
min |
1.2 |
1.2 |
1.2 |
1.6 |
db |
max |
11.3 |
14.1 |
15.6 |
16.9 |
min |
11 |
13.8 |
15.3 |
16.6 | |
dc |
≈ |
12.8 |
16.1 |
17.8 |
19.3 |
de |
≈ |
13 |
17 |
18 |
20 |
螺纹规格 M12 M16 M20 M22 M24 M27 M30 P(KN) max 59 113 177 216 250 324 397 min 49 93 142 177 206 265 329 |
◆ 10.9S 高强度大六角头螺栓连接副的扭矩系数平均值0.11~0.150。扭矩系数的标准偏差小于或等于0.010。扭矩系数测定时,预拉力控制范围见上表。 ◆ 8.8S 高强度大六角头螺栓连接副,客户有要求,也可按确保扭矩系数供货。 |
螺纹规格 |
M16 |
M20 |
M22 |
M24 | |
每批紧固轴力的平均值(KN) |
公称 |
109 |
170 |
211 |
245 |
max |
120 |
186 |
231 |
270 | |
min |
99 |
154 |
191 |
222 | |
紧固轴力标准偏差σ(KN)≤ |
9.90 |
15.39 |
19.11 |
22.25 |
螺纹规格 |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
大六角头高强度螺栓 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
扭剪型高强度螺栓 |
/ |
25 |
30 |
35 |
40 |
/ |
/ |
罗纹规格 |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
10.9S |
60 |
110 |
170 |
210 |
250 |
320 |
390 |