國家標(biāo)準(zhǔn)GB3098.13(點擊下載)中規(guī)定了8.8級 9.8級 10.9級 12.9級螺絲的部分規(guī)格的最小破壞扭矩(出于方便理解下稱扭力吧),其核心內(nèi)容有兩點:
重點:扭力=抗拉強(qiáng)度*強(qiáng)度比*截面抗扭模數(shù)
其中,抗拉強(qiáng)度σb在GB3098.1(點此下載GB/T3098.1-2010.PDF文檔)有規(guī)定,強(qiáng)度比X在GB3098.13中有規(guī)定,抗扭截面模數(shù)WP是一個材料力學(xué)概念,公式是固定的即3.14/16*d3。有了這個計算方法,基本可以獲取所有級別螺絲的扭力參數(shù)。
-
GB3098.13提供常用規(guī)格的扭力參考數(shù)據(jù):
以上兩點本身沒毛病,但是在查閱使用過程中著實讓人很D疼,1是公式太魅澀,看起來瘆的慌;2是表格沒卵用,樣本太少。
出于日常查閱方便,現(xiàn)將所有螺絲的扭力的計算值列表如下,其中公制螺絲部分按GB3098.13計算,美制螺絲部分按ASTM F606/606M(并結(jié)合GB3098.13)計算。為方便直覺體會,美制螺絲扭力也采用牛米NM為單位。
值得說明的是,標(biāo)準(zhǔn)中對于被測試物有一些前置要求,比如不適用于M10以上、不適用于緊定等等,這些就不管它了,本表提供的是理論計算值。
公制部分。4.8級、8.8級、9.8級、10.9級、12.9級螺絲的扭力
感謝評論區(qū) @狗蛋的建議,以下4.8級強(qiáng)度比系數(shù)取值按X=0.916:
螺紋 規(guī)格 |
外徑 (mm) |
牙距 (mm) |
牙底徑 (mm) |
4.8抗拉強(qiáng)度 (Mpa) |
強(qiáng)度比(鼠標(biāo)停見說明) |
扭轉(zhuǎn)強(qiáng)度 (Mpa) |
抗扭截面模數(shù) |
理論扭力
(NM) |
扭力國標(biāo)值 (NM) |
相差 (NM) |
建議安裝力
(NM) |
D |
P |
d |
σb min |
X |
τB |
WP |
MB |
S |
M1*0.25 |
0.93 |
0.25 |
0.6594 |
420 |
0.916 |
384.72 |
0.06 |
0.022 |
未規(guī)定 |
|
0.013 |
M1.2*0.25 |
1.13 |
0.25 |
0.8594 |
420 |
0.916 |
384.72 |
0.12 |
0.048 |
|
0.029 |
M1.4*0.3 |
1.33 |
0.3 |
1.0052 |
420 |
0.916 |
384.72 |
0.20 |
0.077 |
|
0.046 |
M1.6*0.35 |
1.5 |
0.35 |
1.1211 |
420 |
0.916 |
384.72 |
0.28 |
0.106 |
|
0.064 |
M2*0.4 |
1.89 |
0.4 |
1.4570 |
420 |
0.916 |
384.72 |
0.61 |
0.234 |
|
0.14 |
M2.5*0.45 |
2.38 |
0.45 |
1.8929 |
420 |
0.916 |
384.72 |
1.33 |
0.51 |
|
0.31 |
M3*0.5 |
2.87 |
0.5 |
2.3287 |
420 |
0.916 |
384.72 |
2.48 |
0.95 |
|
0.57 |
M3.5*0.6 |
3.35 |
0.6 |
2.7005 |
420 |
0.916 |
384.72 |
3.86 |
1.49 |
|
0.89 |
M4*0.7 |
3.84 |
0.7 |
3.0822 |
420 |
0.916 |
384.72 |
5.75 |
2.21 |
|
1.33 |
M5*0.8 |
4.83 |
0.8 |
3.9640 |
420 |
0.916 |
384.72 |
12.22 |
4.70 |
|
2.82 |
M6*1.0 |
5.79 |
1 |
4.7075 |
420 |
0.916 |
384.72 |
20.47 |
7.88 |
|
4.73 |
M8*1.25 |
7.76 |
1.25 |
6.4069 |
420 |
0.916 |
384.72 |
51.61 |
19.86 |
|
11.91 |
M10*1.5 |
9.73 |
1.5 |
8.1062 |
420 |
0.916 |
384.72 |
104.54 |
40.22 |
|
24.13 |
M12*1.75 |
11.7 |
1.75 |
9.8056 |
420 |
0.916 |
384.72 |
185.03 |
71.18 |
|
42.71 |
M14*1.75 |
13.68 |
1.75 |
11.7856 |
420 |
0.916 |
384.72 |
321.27 |
123.60 |
|
74.16 |
M16*2 |
15.68 |
2 |
13.5150 |
420 |
0.916 |
384.72 |
484.46 |
186.38 |
|
111.83 |
M18*2 |
17.62 |
2 |
15.4550 |
420 |
0.916 |
384.72 |
724.46 |
278.71 |
|
167.23 |
M20*2.5 |
19.62 |
2.5 |
16.9137 |
420 |
0.916 |
384.72 |
949.57 |
365.32 |
|
219.19 |
M22*2.5 |
21.62 |
2.5 |
18.9137 |
420 |
0.916 |
384.72 |
1327.82 |
510.84 |
|
306.50 |
M24*3 |
23.58 |
3 |
20.3324 |
420 |
0.916 |
384.72 |
1649.60 |
634.63 |
|
380.78 |
M27*3 |
26.58 |
3 |
23.3324 |
420 |
0.916 |
384.72 |
2492.82 |
959.04 |
|
575.42 |
M30*3.5 |
29.52 |
3.5 |
25.7312 |
420 |
0.916 |
384.72 |
3343.40 |
1286.27 |
|
771.76 |
M33*3.5 |
32.52 |
3.5 |
28.7312 |
420 |
0.916 |
384.72 |
4654.47 |
1790.67 |
|
1074.40 |
M36*4 |
35.47 |
4 |
31.1399 |
420 |
0.916 |
384.72 |
5926.01 |
2279.85 |
|
1367.91 |
M39*4 |
38.47 |
4 |
34.1399 |
420 |
0.916 |
384.72 |
7809.03 |
3004.29 |
|
1802.57 |
螺紋 規(guī)格 |
外徑 (mm) |
牙距 (mm) |
牙底徑 (mm) |
8.8抗拉強(qiáng)度 (Mpa) |
強(qiáng)度比 |
扭轉(zhuǎn)強(qiáng)度 (Mpa) |
抗扭截面模數(shù) |
理論扭力
(NM) |
扭力國標(biāo)值 (NM) |
相差 (NM) |
建議安裝力 (NM) |
D |
P |
d |
σb min |
X |
τB |
WP |
MB |
S |
M1*0.25 |
0.93 |
0.25 |
0.6594 |
800 |
0.84 |
672 |
0.06 |
0.038 |
0.033 |
0.005 |
0.023 |
M1.2*0.25 |
1.13 |
0.25 |
0.8594 |
800 |
0.84 |
672 |
0.12 |
0.084 |
0.075 |
0.009 |
0.050 |
M1.4*0.3 |
1.34 |
0.3 |
1.0152 |
800 |
0.84 |
672 |
0.21 |
0.138 |
0.12 |
0.018 |
0.083 |
M1.6*0.35 |
1.5 |
0.35 |
1.1211 |
800 |
0.84 |
672 |
0.28 |
0.186 |
0.16 |
0.026 |
0.112 |
M2*0.4 |
1.89 |
0.4 |
1.4570 |
800 |
0.84 |
672 |
0.61 |
0.41 |
0.37 |
0.038 |
0.24 |
M2.5*0.45 |
2.38 |
0.45 |
1.8929 |
800 |
0.84 |
672 |
1.33 |
0.89 |
0.82 |
0.074 |
0.54 |
M3*0.5 |
2.88 |
0.5 |
2.3387 |
800 |
0.84 |
672 |
2.51 |
1.69 |
1.5 |
0.19 |
1.01 |
M3.5*0.6 |
3.36 |
0.6 |
2.7105 |
800 |
0.84 |
672 |
3.91 |
2.63 |
2.4 |
0.23 |
1.58 |
M4*0.7 |
3.83 |
0.7 |
3.0722 |
800 |
0.84 |
672 |
5.69 |
3.82 |
3.6 |
0.22 |
2.29 |
M5*0.8 |
4.78 |
0.8 |
3.9140 |
800 |
0.84 |
672 |
11.77 |
7.91 |
7.6 |
0.31 |
4.74 |
M6*1.0 |
5.78 |
1 |
4.6975 |
800 |
0.84 |
672 |
20.34 |
13.67 |
13 |
0.67 |
8.20 |
M8*1.25 |
7.78 |
1.25 |
6.4269 |
800 |
0.84 |
672 |
52.10 |
35.01 |
33 |
2.01 |
21.01 |
M10*1.5 |
9.77 |
1.5 |
8.1462 |
800 |
0.84 |
672 |
106.09 |
71.29 |
66 |
5.29 |
42.78 |
M12*1.75 |
11.76 |
1.75 |
9.8656 |
800 |
0.84 |
672 |
188.44 |
126.63 |
沒規(guī)定 |
|
75.98 |
M14*1.75 |
13.74 |
1.75 |
11.8456 |
800 |
0.84 |
672 |
326.20 |
219.20 |
|
131.52 |
M16*2 |
15.74 |
2 |
13.5750 |
800 |
0.84 |
672 |
490.94 |
329.91 |
|
197.95 |
M18*2 |
17.71 |
2 |
15.5450 |
830 |
0.84 |
697.2 |
737.19 |
513.97 |
|
308.38 |
M20*2.5 |
19.71 |
2.5 |
17.0037 |
830 |
0.84 |
697.2 |
964.81 |
672.66 |
|
403.60 |
M22*2.5 |
21.62 |
2.5 |
18.9137 |
830 |
0.84 |
697.2 |
1327.82 |
925.76 |
|
555.45 |
M24*3 |
23.58 |
3 |
20.3324 |
830 |
0.84 |
697.2 |
1649.60 |
1150.10 |
|
690.06 |
M27*3 |
26.58 |
3 |
23.3324 |
830 |
0.84 |
697.2 |
2492.82 |
1737.99 |
|
1042.79 |
M30*3.5 |
29.52 |
3.5 |
25.7312 |
830 |
0.84 |
697.2 |
3343.40 |
2331.02 |
|
1398.61 |
M33*3.5 |
32.52 |
3.5 |
28.7312 |
830 |
0.84 |
697.2 |
4654.47 |
3245.10 |
|
1947.06 |
M36*4 |
35.47 |
4 |
31.1399 |
830 |
0.84 |
697.2 |
5926.01 |
4131.61 |
|
2478.97 |
M39*4 |
38.47 |
4 |
34.1399 |
830 |
0.84 |
697.2 |
7809.03 |
5444.46 |
|
3266.67 |
螺紋 規(guī)格 |
外徑 (mm) |
牙距 (mm) |
牙底徑 (mm) |
9.8抗拉強(qiáng)度 (Mpa) |
強(qiáng)度比 |
扭轉(zhuǎn)強(qiáng)度 (Mpa) |
抗扭截面模數(shù) |
理論扭力
(NM) |
扭力國標(biāo)值 (NM) |
相差 (NM) |
建議安裝力 (NM) |
D |
P |
d |
σb min |
X |
τB |
WP |
MB |
S |
M1*0.25 |
0.93 |
0.25 |
0.6594 |
900 |
0.815 |
733.5 |
0.06 |
0.041 |
0.036 |
0.005 |
0.025 |
M1.2*0.25 |
1.13 |
0.25 |
0.8594 |
900 |
0.815 |
733.5 |
0.12 |
0.091 |
0.082 |
0.009 |
0.055 |
M1.4*0.3 |
1.34 |
0.3 |
1.0152 |
900 |
0.815 |
733.5 |
0.21 |
0.151 |
0.13 |
0.021 |
0.090 |
M1.6*0.35 |
1.5 |
0.35 |
1.1211 |
900 |
0.815 |
733.5 |
0.28 |
0.203 |
0.18 |
0.023 |
0.122 |
M2*0.4 |
1.89 |
0.4 |
1.4570 |
900 |
0.815 |
733.5 |
0.61 |
0.45 |
0.40 |
0.045 |
0.267 |
M2.5*0.45 |
2.38 |
0.45 |
1.8929 |
900 |
0.815 |
733.5 |
1.33 |
0.98 |
0.9 |
0.08 |
0.59 |
M3*0.5 |
2.88 |
0.5 |
2.3387 |
900 |
0.815 |
733.5 |
2.51 |
1.84 |
1.7 |
0.14 |
1.10 |
M3.5*0.6 |
3.36 |
0.6 |
2.7105 |
900 |
0.815 |
733.5 |
3.91 |
2.87 |
2.7 |
0.17 |
1.72 |
M4*0.7 |
3.83 |
0.7 |
3.0722 |
900 |
0.815 |
733.5 |
5.69 |
4.17 |
3.9 |
0.27 |
2.50 |
M5*0.8 |
4.78 |
0.8 |
3.9140 |
900 |
0.815 |
733.5 |
11.77 |
8.63 |
8.3 |
0.33 |
5.18 |
M6*1.0 |
5.78 |
1 |
4.6975 |
900 |
0.815 |
733.5 |
20.34 |
14.92 |
14 |
0.92 |
8.95 |
M8*1.25 |
7.78 |
1.25 |
6.4269 |
900 |
0.815 |
733.5 |
52.10 |
38.21 |
36 |
2.21 |
22.93 |
M10*1.5 |
9.77 |
1.5 |
8.1462 |
900 |
0.815 |
733.5 |
106.09 |
77.82 |
72 |
5.82 |
46.69 |
M12*1.75 |
11.76 |
1.75 |
9.8656 |
900 |
0.815 |
733.5 |
188.44 |
138.22 |
沒規(guī)定 |
|
82.93 |
M14*1.75 |
13.74 |
1.75 |
11.8456 |
900 |
0.815 |
733.5 |
326.20 |
239.27 |
|
143.56 |
M16*2 |
15.74 |
2 |
13.5750 |
900 |
0.815 |
733.5 |
490.94 |
360.10 |
|
216.06 |
M18*2 |
17.71 |
2 |
15.5450 |
900 |
0.815 |
733.5 |
737.19 |
540.73 |
|
324.44 |
M20*2.5 |
19.71 |
2.5 |
17.0037 |
900 |
0.815 |
733.5 |
964.81 |
707.69 |
|
424.61 |
M22*2.5 |
21.62 |
2.5 |
18.9137 |
900 |
0.815 |
733.5 |
1327.82 |
973.96 |
|
584.37 |
M24*3 |
23.58 |
3 |
20.3324 |
900 |
0.815 |
733.5 |
1649.60 |
1209.98 |
|
725.99 |
M27*3 |
26.58 |
3 |
23.3324 |
900 |
0.815 |
733.5 |
2492.82 |
1828.48 |
|
1097.09 |
M30*3.5 |
29.52 |
3.5 |
25.7312 |
900 |
0.815 |
733.5 |
3343.40 |
2452.39 |
|
1471.43 |
M33*3.5 |
32.52 |
3.5 |
28.7312 |
900 |
0.815 |
733.5 |
4654.47 |
3414.05 |
|
2048.43 |
M36*4 |
35.47 |
4 |
31.1399 |
900 |
0.815 |
733.5 |
5926.01 |
4346.73 |
|
2608.04 |
M39*4 |
38.47 |
4 |
34.1399 |
900 |
0.815 |
733.5 |
7809.03 |
5727.92 |
|
3436.75 |
螺紋 規(guī)格 |
外徑 (mm) |
牙距 (mm) |
牙底徑 (mm) |
10.9抗拉強(qiáng)度 (Mpa) |
強(qiáng)度比 |
扭轉(zhuǎn)強(qiáng)度 (Mpa) |
抗扭截面模數(shù) |
理論扭力
(NM) |
扭力國標(biāo)值 (NM) |
相差 (NM) |
建議安裝力 (NM) |
D |
P |
d |
σb min |
X |
τB |
WP |
MB |
S |
M1*0.25 |
0.93 |
0.25 |
0.6594 |
1040 |
0.79 |
821.6 |
0.06 |
0.046 |
0.040 |
0.006 |
0.028 |
M1.2*0.25 |
1.13 |
0.25 |
0.8594 |
1040 |
0.79 |
821.6 |
0.12 |
0.102 |
0.092 |
0.010 |
0.061 |
M1.4*0.3 |
1.34 |
0.3 |
1.0152 |
1040 |
0.79 |
821.6 |
0.21 |
0.169 |
0.14 |
0.029 |
0.101 |
M1.6*0.35 |
1.5 |
0.35 |
1.1211 |
1040 |
0.79 |
821.6 |
0.28 |
0.227 |
0.20 |
0.027 |
0.136 |
M2*0.4 |
1.89 |
0.4 |
1.4570 |
1040 |
0.79 |
821.6 |
0.61 |
0.50 |
0.45 |
0.049 |
0.299 |
M2.5*0.45 |
2.38 |
0.45 |
1.8929 |
1040 |
0.79 |
821.6 |
1.33 |
1.09 |
1 |
0.09 |
0.66 |
M3*0.5 |
2.88 |
0.5 |
2.3387 |
1040 |
0.79 |
821.6 |
2.51 |
2.06 |
1.9 |
0.16 |
1.24 |
M3.5*0.6 |
3.36 |
0.6 |
2.7105 |
1040 |
0.79 |
821.6 |
3.91 |
3.21 |
3 |
0.21 |
1.93 |
M4*0.7 |
3.83 |
0.7 |
3.0722 |
1040 |
0.79 |
821.6 |
5.69 |
4.68 |
4.4 |
0.28 |
2.81 |
M5*0.8 |
4.78 |
0.8 |
3.9140 |
1040 |
0.79 |
821.6 |
11.77 |
9.67 |
9.3 |
0.37 |
5.80 |
M6*1.0 |
5.78 |
1 |
4.6975 |
1040 |
0.79 |
821.6 |
20.34 |
16.71 |
16 |
0.71 |
10.03 |
M8*1.25 |
7.78 |
1.25 |
6.4269 |
1040 |
0.79 |
821.6 |
52.10 |
42.80 |
40 |
2.80 |
25.68 |
M10*1.5 |
9.77 |
1.5 |
8.1462 |
1040 |
0.79 |
821.6 |
106.09 |
87.16 |
81 |
6.16 |
52.30 |
M12*1.75 |
11.76 |
1.75 |
9.8656 |
1040 |
0.79 |
821.6 |
188.44 |
154.82 |
沒規(guī)定 |
|
92.89 |
M14*1.75 |
13.74 |
1.75 |
11.8456 |
1040 |
0.79 |
821.6 |
326.20 |
268.00 |
|
160.80 |
M16*2 |
15.74 |
2 |
13.5750 |
1040 |
0.79 |
821.6 |
490.94 |
403.35 |
|
242.01 |
M18*2 |
17.71 |
2 |
15.5450 |
1040 |
0.79 |
821.6 |
737.19 |
605.67 |
|
363.40 |
M20*2.5 |
19.71 |
2.5 |
17.0037 |
1040 |
0.79 |
821.6 |
964.81 |
792.68 |
|
475.61 |
M22*2.5 |
21.62 |
2.5 |
18.9137 |
1040 |
0.79 |
821.6 |
1327.82 |
1090.94 |
|
654.56 |
M24*3 |
23.58 |
3 |
20.3324 |
1040 |
0.79 |
821.6 |
1649.60 |
1355.31 |
|
813.19 |
M27*3 |
26.58 |
3 |
23.3324 |
1040 |
0.79 |
821.6 |
2492.82 |
2048.10 |
|
1228.86 |
M30*3.5 |
29.52 |
3.5 |
25.7312 |
1040 |
0.79 |
821.6 |
3343.40 |
2746.94 |
|
1648.16 |
M33*3.5 |
32.52 |
3.5 |
28.7312 |
1040 |
0.79 |
821.6 |
4654.47 |
3824.11 |
|
2294.47 |
M36*4 |
35.47 |
4 |
31.1399 |
1040 |
0.79 |
821.6 |
5926.01 |
4868.81 |
|
2921.28 |
M39*4 |
38.47 |
4 |
34.1399 |
1040 |
0.79 |
821.6 |
7809.03 |
6415.90 |
|
3849.54 |
螺紋 規(guī)格 |
外徑 (mm) |
牙距 (mm) |
牙底徑 (mm) |
12.9抗拉強(qiáng)度 (Mpa) |
強(qiáng)度比 |
扭轉(zhuǎn)強(qiáng)度 (Mpa) |
抗扭截面模數(shù) |
理論扭力
(NM) |
扭力國標(biāo)值 (NM) |
相差 (NM) |
建議安裝力 (NM) |
D |
P |
d |
σb min |
X |
τB |
WP |
MB |
S |
M1*0.25 |
0.93 |
0.25 |
0.6594 |
1220 |
0.75 |
915 |
0.06 |
0.05 |
0.045 |
0.006 |
0.031 |
M1.2*0.25 |
1.13 |
0.25 |
0.8594 |
1220 |
0.75 |
915 |
0.12 |
0.11 |
0.10 |
0.014 |
0.068 |
M1.4*0.3 |
1.34 |
0.3 |
1.0152 |
1220 |
0.75 |
915 |
0.21 |
0.19 |
0.16 |
0.028 |
0.113 |
M1.6*0.35 |
1.5 |
0.35 |
1.1211 |
1220 |
0.75 |
915 |
0.28 |
0.25 |
0.22 |
0.033 |
0.152 |
M2*0.4 |
1.89 |
0.4 |
1.4570 |
1220 |
0.75 |
915 |
0.61 |
0.56 |
0.50 |
0.055 |
0.333 |
M2.5*0.45 |
2.38 |
0.45 |
1.8929 |
1220 |
0.75 |
915 |
1.33 |
1.22 |
1.1 |
0.12 |
0.73 |
M3*0.5 |
2.88 |
0.5 |
2.3387 |
1220 |
0.75 |
915 |
2.51 |
2.30 |
2.1 |
0.20 |
1.38 |
M3.5*0.6 |
3.36 |
0.6 |
2.7105 |
1220 |
0.75 |
915 |
3.91 |
3.58 |
3.3 |
0.28 |
2.15 |
M4*0.7 |
3.83 |
0.7 |
3.0722 |
1220 |
0.75 |
915 |
5.69 |
5.21 |
4.9 |
0.31 |
3.12 |
M5*0.8 |
4.78 |
0.8 |
3.9140 |
1220 |
0.75 |
915 |
11.77 |
10.77 |
10 |
0.77 |
6.46 |
M6*1.0 |
5.78 |
1 |
4.6975 |
1220 |
0.75 |
915 |
20.34 |
18.61 |
17 |
1.61 |
11.17 |
M8*1.25 |
7.78 |
1.25 |
6.4269 |
1220 |
0.75 |
915 |
52.10 |
47.67 |
44 |
3.67 |
28.60 |
M10*1.5 |
9.77 |
1.5 |
8.1462 |
1220 |
0.75 |
915 |
106.09 |
97.07 |
90 |
7.07 |
58.24 |
M12*1.75 |
11.76 |
1.75 |
9.8656 |
1220 |
0.75 |
915 |
188.44 |
172.42 |
沒規(guī)定 |
|
103.45 |
M14*1.75 |
13.74 |
1.75 |
11.8456 |
1220 |
0.75 |
915 |
326.20 |
298.47 |
|
179.08 |
M16*2 |
15.74 |
2 |
13.5750 |
1220 |
0.75 |
915 |
490.94 |
449.21 |
|
269.52 |
M18*2 |
17.71 |
2 |
15.5450 |
1220 |
0.75 |
915 |
737.19 |
674.53 |
|
404.72 |
M20*2.5 |
19.71 |
2.5 |
17.0037 |
1220 |
0.75 |
915 |
964.81 |
882.80 |
|
529.68 |
M22*2.5 |
21.62 |
2.5 |
18.9137 |
1220 |
0.75 |
915 |
1327.82 |
1214.96 |
|
728.97 |
M24*3 |
23.58 |
3 |
20.3324 |
1220 |
0.75 |
915 |
1649.60 |
1509.38 |
|
905.63 |
M27*3 |
26.58 |
3 |
23.3324 |
1220 |
0.75 |
915 |
2492.82 |
2280.93 |
|
1368.56 |
M30*3.5 |
29.52 |
3.5 |
25.7312 |
1220 |
0.75 |
915 |
3343.40 |
3059.21 |
|
1835.53 |
M33*3.5 |
32.52 |
3.5 |
28.7312 |
1220 |
0.75 |
915 |
4654.47 |
4258.84 |
|
2555.30 |
M36*4 |
35.47 |
4 |
31.1399 |
1220 |
0.75 |
915 |
5926.01 |
5422.30 |
|
3253.38 |
M39*4 |
38.47 |
4 |
34.1399 |
1220 |
0.75 |
915 |
7809.03 |
7145.26 |
|
4287.16 |
美制螺絲部分
美制螺絲的扭力標(biāo)準(zhǔn)來自ASTM F606/606M,標(biāo)準(zhǔn)給出的扭力計算公式如下:
即:
扭矩Mb(以美制為單位)=d3*抗拉強(qiáng)度UTS*0.165
扭矩Mb(以公制為單位)=d3*抗拉強(qiáng)度UTS*0.00014
其中第二條關(guān)于公制螺絲計算公式等效于本文上面所述的GB3098.13公式,甚至還更精準(zhǔn)一些,為避免重復(fù),下面只計算美制螺絲部分。
以美制5級1/4-20UNC公差等級2A的螺絲為例:
1/4-20UNC螺絲的牙底徑:0.1894inch (數(shù)據(jù)來源:螺紋的大徑中徑小徑表,請自行換算一下公、英制關(guān)系)
1/4*20UNC 5級的抗拉強(qiáng)度UTS:120000psi (標(biāo)準(zhǔn)來源:SAE J429,點擊下載SAE J429-1999.PDF標(biāo)準(zhǔn),文檔中第3頁)
故:
Mb=0.18943*12000*0.165=134.53 in.lbs
我們將所有規(guī)格、等級的美制螺絲扭矩標(biāo)準(zhǔn)列表如下,如前所述,這些參數(shù)基本于理論計算值 ,且忽略掉了一些前置條件,如不適用于螺柱、一字螺釘,十字槽螺釘、螺紋不能小于1/4或大于1寸、螺栓不能超級長…等等,總之你懂的就行。
- 美制2級螺絲扭力標(biāo)準(zhǔn)(精度2A):
螺紋規(guī)格 |
牙底徑 |
2級抗拉強(qiáng)度UTS |
計算系數(shù) |
扭矩 |
建議安裝力 |
inch-牙數(shù) |
單位 inch |
單位psi |
in.lbs |
換算為NM |
in.lbs |
換算為NM |
1-64UNC |
0.0538 |
74000 |
0.165 |
1.90 |
0.21 |
1.14 |
0.13 |
1-72UNF |
0.0559 |
74000 |
0.165 |
2.13 |
0.24 |
1.28 |
0.14 |
2-56UNC |
0.0642 |
74000 |
0.165 |
3.23 |
0.36 |
1.94 |
0.22 |
2-64UNF |
0.0668 |
74000 |
0.165 |
3.64 |
0.41 |
2.18 |
0.25 |
3-48UNC |
0.0734 |
74000 |
0.165 |
4.83 |
0.55 |
2.90 |
0.33 |
3-56UNF |
0.0771 |
74000 |
0.165 |
5.60 |
0.63 |
3.36 |
0.38 |
4-40UNC |
0.0814 |
74000 |
0.165 |
6.59 |
0.74 |
3.95 |
0.45 |
4-48UNF |
0.0864 |
74000 |
0.165 |
7.88 |
0.89 |
4.73 |
0.53 |
5-40UNC |
0.0944 |
74000 |
0.165 |
10.27 |
1.16 |
6.16 |
0.70 |
5-44UNF |
0.0972 |
74000 |
0.165 |
11.21 |
1.27 |
6.73 |
0.76 |
6-32UNC |
0.1 |
74000 |
0.165 |
12.21 |
1.38 |
7.33 |
0.83 |
6-40UNF |
0.1074 |
74000 |
0.165 |
15.13 |
1.71 |
9.08 |
1.02 |
8-32UNC |
0.1259 |
74000 |
0.165 |
24.37 |
2.75 |
14.62 |
1.65 |
8-36UNF |
0.1301 |
74000 |
0.165 |
26.89 |
3.04 |
16.13 |
1.82 |
10-24UNC |
0.1394 |
74000 |
0.165 |
33.08 |
3.73 |
19.85 |
2.24 |
10-32UNF |
0.1519 |
74000 |
0.165 |
42.79 |
4.83 |
25.68 |
2.90 |
12-24UNC |
0.1654 |
74000 |
0.165 |
55.25 |
6.24 |
33.15 |
3.74 |
12-28UNF |
0.1724 |
74000 |
0.165 |
62.56 |
7.06 |
37.54 |
4.24 |
1/4-20UNC |
0.1894 |
74000 |
0.165 |
82.96 |
9.37 |
49.77 |
5.62 |
1/4-28UNF |
0.2064 |
74000 |
0.165 |
107.36 |
12.12 |
64.42 |
7.27 |
5/16-18UNC |
0.2452 |
74000 |
0.165 |
180.00 |
20.32 |
108.00 |
12.19 |
5/16-24 |
0.2618 |
74000 |
0.165 |
219.09 |
24.74 |
131.45 |
14.84 |
3/8-16UNC |
0.2992 |
74000 |
0.165 |
327.04 |
36.92 |
196.22 |
22.15 |
3/8-24UNF |
0.3243 |
74000 |
0.165 |
416.44 |
47.02 |
249.87 |
28.21 |
7/16-14UNC |
0.3511 |
74000 |
0.165 |
528.46 |
59.66 |
317.07 |
35.80 |
7/16-20UNF |
0.3767 |
74000 |
0.165 |
652.68 |
73.69 |
391.61 |
44.21 |
1/2-13UNC |
0.4069 |
74000 |
0.165 |
822.58 |
92.87 |
493.55 |
55.72 |
1/2-20UNF |
0.4932 |
74000 |
0.165 |
1464.82 |
165.38 |
878.89 |
99.23 |
9/16-12UNC |
0.4617 |
74000 |
0.165 |
1201.70 |
135.68 |
721.02 |
81.41 |
9/16-18UNF |
0.495 |
74000 |
0.165 |
1480.92 |
167.20 |
888.55 |
100.32 |
5/8-11UNC |
0.5152 |
74000 |
0.165 |
1669.72 |
188.52 |
1001.83 |
113.11 |
5/8-18UNF |
0.5575 |
74000 |
0.165 |
2115.68 |
238.87 |
1269.41 |
143.32 |
3/4-10UNC |
0.6291 |
74000 |
0.165 |
3040.01 |
343.23 |
1824.00 |
205.94 |
3/4-16UNF |
0.674 |
74000 |
0.165 |
3738.48 |
422.09 |
2243.09 |
253.25 |
7/8-9UNC |
0.7408 |
74000 |
0.165 |
4963.85 |
560.43 |
2978.31 |
336.26 |
7/8-14UNF |
0.7884 |
74000 |
0.165 |
5983.50 |
675.56 |
3590.10 |
405.33 |
1-8UNC |
0.8492 |
74000 |
0.165 |
7477.31 |
844.21 |
4486.39 |
506.53 |
1-14UNF |
0.9132 |
74000 |
0.165 |
9298.51 |
1049.83 |
5579.11 |
629.90 |
- 美制5級螺栓扭力標(biāo)準(zhǔn)(精度2A):
- 美制8級螺栓扭力標(biāo)準(zhǔn)(精度2A):
螺紋規(guī)格 |
牙底徑 |
8級抗拉強(qiáng)度UTS |
計算系數(shù) |
扭矩 |
建議安裝力 |
單位 inch |
單位psi |
in.lbs |
換算為NM |
in.lbs |
換算為NM |
1-64UNC |
0.0538 |
150000 |
0.165 |
3.85 |
0.44 |
2.31 |
0.26 |
1-72UNF |
0.0559 |
150000 |
0.165 |
4.32 |
0.49 |
2.59 |
0.29 |
2-56UNC |
0.0642 |
150000 |
0.165 |
6.55 |
0.74 |
3.93 |
0.44 |
2-64UNF |
0.0668 |
150000 |
0.165 |
7.38 |
0.83 |
4.43 |
0.50 |
3-48UNC |
0.0734 |
150000 |
0.165 |
9.79 |
1.11 |
5.87 |
0.66 |
3-56UNF |
0.0771 |
150000 |
0.165 |
11.34 |
1.28 |
6.81 |
0.77 |
4-40UNC |
0.0814 |
150000 |
0.165 |
13.35 |
1.51 |
8.01 |
0.90 |
4-48UNF |
0.0864 |
150000 |
0.165 |
15.96 |
1.80 |
9.58 |
1.08 |
5-40UNC |
0.0944 |
150000 |
0.165 |
20.82 |
2.35 |
12.49 |
1.41 |
5-44UNF |
0.0972 |
150000 |
0.165 |
22.73 |
2.57 |
13.64 |
1.54 |
6-32UNC |
0.1 |
150000 |
0.165 |
24.75 |
2.79 |
14.85 |
1.68 |
6-40UNF |
0.1074 |
150000 |
0.165 |
30.66 |
3.46 |
18.40 |
2.08 |
8-32UNC |
0.1259 |
150000 |
0.165 |
49.39 |
5.58 |
29.63 |
3.35 |
8-36UNF |
0.1301 |
150000 |
0.165 |
54.50 |
6.15 |
32.70 |
3.69 |
10-24UNC |
0.1394 |
150000 |
0.165 |
67.04 |
7.57 |
40.23 |
4.54 |
10-32UNF |
0.1519 |
150000 |
0.165 |
86.75 |
9.79 |
52.05 |
5.88 |
12-24UNC |
0.1654 |
150000 |
0.165 |
111.99 |
12.64 |
67.19 |
7.59 |
12-28UNF |
0.1724 |
150000 |
0.165 |
126.82 |
14.32 |
76.09 |
8.59 |
1/4-20UNC |
0.1894 |
150000 |
0.165 |
168.16 |
18.99 |
100.89 |
11.39 |
1/4-28UNF |
0.2064 |
150000 |
0.165 |
217.62 |
24.57 |
130.57 |
14.74 |
5/16-18UNC |
0.2452 |
150000 |
0.165 |
364.87 |
41.19 |
218.92 |
24.72 |
5/16-24 |
0.2618 |
150000 |
0.165 |
444.10 |
50.14 |
266.46 |
30.08 |
3/8-16UNC |
0.2992 |
150000 |
0.165 |
662.92 |
74.85 |
397.75 |
44.91 |
3/8-24UNF |
0.3243 |
150000 |
0.165 |
844.14 |
95.31 |
506.49 |
57.18 |
7/16-14UNC |
0.3511 |
150000 |
0.165 |
1071.19 |
120.94 |
642.72 |
72.56 |
7/16-20UNF |
0.3767 |
150000 |
0.165 |
1323.01 |
149.37 |
793.80 |
89.62 |
1/2-13UNC |
0.4069 |
150000 |
0.165 |
1667.39 |
188.25 |
1000.44 |
112.95 |
1/2-20UNF |
0.4932 |
150000 |
0.165 |
2969.23 |
335.24 |
1781.54 |
201.14 |
9/16-12UNC |
0.4617 |
150000 |
0.165 |
2435.87 |
275.02 |
1461.52 |
165.01 |
9/16-18UNF |
0.495 |
150000 |
0.165 |
3001.86 |
338.92 |
1801.12 |
203.35 |
5/8-11UNC |
0.5152 |
150000 |
0.165 |
3384.56 |
382.13 |
2030.74 |
229.28 |
5/8-18UNF |
0.5575 |
150000 |
0.165 |
4288.54 |
484.19 |
2573.13 |
290.51 |
3/4-10UNC |
0.6291 |
150000 |
0.165 |
6162.18 |
695.73 |
3697.31 |
417.44 |
3/4-16UNF |
0.674 |
150000 |
0.165 |
7578.01 |
855.58 |
4546.80 |
513.35 |
7/8-9UNC |
0.7408 |
150000 |
0.165 |
10061.86 |
1136.01 |
6037.11 |
681.61 |
7/8-14UNF |
0.7884 |
150000 |
0.165 |
12128.72 |
1369.37 |
7277.23 |
821.62 |
1-8UNC |
0.8492 |
150000 |
0.165 |
15156.72 |
1711.24 |
9094.03 |
1026.74 |
1-14UNF |
0.9132 |
150000 |
0.165 |
18848.33 |
2128.03 |
11309.00 |
1276.82 |
|