Siūlomos pradinės vertės
Žemiau pateikti apskaičiuoti sukimo momento skaičiavimai siūlomi tik kaip vadovas. Už naudojimąsi jo turiniu yra atsakingas tik tas asmuo ir jis prisiima visą riziką.
Dėl daugelio kintamųjų, turinčių įtakos sukimo momento ir įtempimo ryšiui, pvz., žmogaus klaida, paviršiaus tekstūra ir tepimas, vienintelis būdas nustatyti tinkamą sukimo momentą yra eksperimentuoti tikromis jungties ir surinkimo sąlygomis..
ASTM A307
Varžto dydis |
TPI |
Įrodymo apkrova (svarai)1 |
Gnybtų apkrova (lbs)2 |
Priveržimo momentas (ft-lbs) |
Galva+vaškuota |
Galv |
Paprastas |
1/4 |
20 |
1,053 |
790 |
2 |
4 |
3 |
5/16 |
18 |
1,735 |
1,302 |
3 |
8 |
7 |
3/8 |
16 |
2,567 |
1,925 |
6 |
15 |
12 |
7/16 |
14 |
3,521 |
2,640 |
10 |
24 |
19 |
1/2 |
13 |
4,700 |
3,525 |
15 |
37 |
29 |
9/16 |
12 |
6,028 |
4,521 |
21 |
53 |
42 |
5/8 |
11 |
7,485 |
5,614 |
29 |
73 |
58 |
3/4 |
10 |
11,062 |
8,297 |
52 |
130 |
104 |
7/8 |
9 |
15,301 |
11,476 |
84 |
209 |
167 |
1 |
8 |
20,071 |
15,053 |
125 |
314 |
251 |
11/8 |
7 |
25,271 |
18,953 |
178 |
444 |
355 |
11/4 |
7 |
32,093 |
24,070 |
251 |
627 |
501 |
13/8 |
6 |
38,254 |
28,690 |
329 |
822 |
657 |
11/2 |
6 |
46,534 |
34,900 |
436 |
1,091 |
873 |
13/4 |
5 |
62,928 |
47,196 |
688 |
1,721 |
1,377 |
2 |
41/2 |
82,800 |
62,100 |
1,035 |
2,588 |
2,070 |
21/4 |
41/2 |
107,640 |
80,730 |
1,514 |
3,784 |
3,027 |
21/2 |
4 |
132,480 |
99,360 |
2,070 |
5,125 |
4,140 |
23/4 |
4 |
163,282 |
122,461 |
2,806 |
7,016 |
5,613 |
3 |
4 |
197,726 |
148,295 |
3,707 |
9,268 |
7,415 |
31/4 |
4 |
235,152 |
176,364 |
4,777 |
11,941 |
9,553 |
31/2 |
4 |
275,890 |
206,917 |
6,035 |
15,088 |
12,070 |
33/4 |
4 |
319,939 |
239,954 |
7,499 |
18,746 |
14,997 |
4 |
4 |
366,970 |
275,227 |
9,174 |
22,936 |
18,348 |
SAE 2 klasė
Varžto dydis |
TPI |
Įrodymo apkrova (svarai) 1 |
Gnybtų apkrova (lbs) 2 |
Priveržimo momentas (ft-lbs) |
Galva+vaškuota |
Galv |
Paprastas |
1/4 |
20 |
1,750 |
1,313 |
3 |
7 |
5 |
5/16 |
18 |
2,900 |
2,175 |
6 |
14 |
11 |
3/8 |
16 |
4,250 |
3,188 |
10 |
25 |
20 |
7/16 |
14 |
5,850 |
4,388 |
16 |
40 |
32 |
1/2 |
13 |
7,800 |
5,850 |
24 |
61 |
49 |
9/16 |
12 |
10,000 |
7,500 |
35 |
88 |
70 |
5/8 |
11 |
12,400 |
9,300 |
48 |
121 |
97 |
3/4 |
10 |
18,400 |
13,800 |
86 |
216 |
173 |
7/8 |
9 |
15,200 |
11,400 |
83 |
208 |
166 |
1 |
8 |
20,000 |
15,000 |
125 |
313 |
250 |
11/8 |
7 |
25,200 |
18,900 |
177 |
443 |
354 |
11/4 |
7 |
32,000 |
24,000 |
250 |
625 |
500 |
13/8 |
6 |
38,100 |
28,575 |
327 |
819 |
655 |
11/2 |
6 |
46,400 |
34,800 |
435 |
1,088 |
870 |
ASTM A325
Varžto dydis |
TPI |
Įtampa |
Priveržimo sukimo momento diapazonas (ft-lbs) (min.–maks.) |
Min |
daugiausia |
Galva+vaškuota |
Paprastas |
1/2 |
13 |
12,000 |
14,000 |
50 - 58 |
100 - 117 |
5/8 |
11 |
19,000 |
23,000 |
99 - 120 |
198 - 240 |
3/4 |
10 |
28,000 |
34,000 |
175 - 213 |
350 - 425 |
7/8 |
9 |
39,000 |
47,000 |
284 - 343 |
569 - 685 |
1 |
8 |
51,000 |
61,000 |
425 - 508 |
850 - 1,017 |
11/8 |
7 |
64,000 |
77,000 |
600 - 722 |
1,200 - 1,444 |
11/4 |
7 |
81,000 |
98,000 |
844 - 1,021 |
1,687 - 2,042 |
13/8 |
6 |
97,000 |
117,000 |
1,111 - 1,341 |
2,223 - 2,681 |
11/2 |
6 |
118,000 |
143,000 |
1,475 - 1,788 |
2,950 - 3,575 |
ASTM A449 / SAE 5 klasė*
Varžto dydis |
TPI |
Įrodymo apkrova (svarai) 1 |
Gnybtų apkrova (lbs) 2 |
Priveržimo momentas (ft-lbs) |
Galva+vaškuota |
Galv |
Paprastas |
1/4 |
20 |
2,700 |
2,025 |
4 |
11 |
8 |
5/16 |
18 |
4,450 |
3,338 |
9 |
22 |
17 |
3/8 |
16 |
6,600 |
4,950 |
15 |
39 |
31 |
7/16 |
14 |
9,050 |
6,788 |
25 |
62 |
49 |
1/2 |
13 |
12,050 |
9,038 |
38 |
94 |
75 |
9/16 |
12 |
15,450 |
11,588 |
54 |
136 |
109 |
5/8 |
11 |
19,200 |
14,400 |
75 |
188 |
150 |
3/4 |
10 |
28,400 |
21,300 |
133 |
333 |
266 |
7/8 |
9 |
39,250 |
29,438 |
215 |
537 |
429 |
1 |
8 |
51,500 |
38,625 |
322 |
805 |
644 |
11/8 |
7 |
56,450 |
42,338 |
397 |
992 |
794 |
11/4 |
7 |
71,700 |
53,775 |
560 |
1,400 |
1,120 |
13/8 |
6 |
85,450 |
64,088 |
734 |
1,836 |
1,469 |
11/2 |
6 |
104,000 |
78,000 |
975 |
2,438 |
1,950 |
13/4 |
5 |
104,500 |
78,375 |
1,143 |
2,857 |
2,286 |
2 |
41/2 |
137,500 |
103,125 |
1,719 |
4,297 |
3,438 |
21/4 |
41/2 |
178,750 |
134,063 |
2,514 |
6,284 |
5,027 |
21/2 |
4 |
220,000 |
165,000 |
3,438 |
8,594 |
6,875 |
23/4 |
4 |
271,150 |
203,363 |
4,660 |
11,651 |
9,321 |
3 |
4 |
328,350 |
246,263 |
6,157 |
15,391 |
12,313 |
* SAE J429 5 klasės varžtai neviršija 1–1/2 colio skersmens. |
ASTM A193 B7 / ASTM A320 L7 / ASTM A354 BC
Varžto dydis |
TPI |
Įrodymo apkrova (svarai) 1 |
Gnybtų apkrova (lbs) 2 |
Priveržimo momentas (ft-lbs) |
Galva+vaškuota |
Galv |
Paprastas |
1/4 |
20 |
3,350 |
2,513 |
5 |
13 |
10 |
5/16 |
18 |
5,500 |
4,125 |
11 |
27 |
21 |
3/8 |
16 |
8,150 |
6,113 |
19 |
48 |
38 |
7/16 |
14 |
11,150 |
8,363 |
30 |
76 |
61 |
1/2 |
13 |
14,900 |
11,175 |
47 |
116 |
93 |
9/16 |
12 |
19,100 |
14,325 |
67 |
168 |
134 |
5/8 |
11 |
23,750 |
17,813 |
93 |
232 |
186 |
3/4 |
10 |
35,050 |
26,288 |
164 |
411 |
329 |
7/8 |
9 |
48,500 |
36,375 |
265 |
663 |
530 |
1 |
8 |
63,650 |
47,738 |
398 |
995 |
796 |
11/8 |
7 |
80,100 |
60,075 |
563 |
1,408 |
1,126 |
11/8 |
8 |
82,934 |
62,201 |
583 |
1,458 |
1,166 |
11/4 |
7 |
101,750 |
76,313 |
795 |
1,987 |
1,590 |
11/4 |
8 |
105,006 |
78,754 |
820 |
2,051 |
1,641 |
13/8 |
6 |
121,300 |
90,975 |
1,042 |
2,606 |
2,085 |
13/8 |
8 |
129,492 |
97,119 |
1,113 |
2,782 |
2,226 |
11/2 |
6 |
147,550 |
110,663 |
1,383 |
3,458 |
2,767 |
11/2 |
8 |
156,687 |
117,515 |
1,469 |
3,672 |
2,938 |
13/4 |
5 |
199,500 |
149,625 |
2,182 |
5,455 |
4,364 |
13/4 |
8 |
218,400 |
163,800 |
- |
- |
4,778 |
2 |
41/2 |
262,500 |
196,875 |
3,281 |
8,203 |
6,563 |
2 |
8 |
290,850 |
218,138 |
- |
- |
7,271 |
21/4 |
41/2 |
341,250 |
255,938 |
4,799 |
11,997 |
9,598 |
21/4 |
8 |
373,801 |
280,351 |
- |
- |
10,513 |
21/2 |
4 |
420,000 |
315,000 |
6,563 |
16,406 |
13,125 |
21/2 |
8 |
466,200 |
349,650 |
- |
- |
14,569 |
23/4 |
4 |
468,500 |
351,263 |
8,050 |
20,124 |
16,100 |
23/4 |
8 |
515,851 |
386,888 |
- |
- |
17,732 |
3 |
4 |
567,150 |
425,363 |
10,634 |
26,585 |
21,268 |
3 |
8 |
618,451 |
463,838 |
- |
- |
23,192 |
31/4 |
4 |
674,500 |
505,875 |
13,701 |
34,252 |
27,402 |
31/4 |
8 |
730,550 |
547,913 |
- |
- |
29,679 |
31/2 |
4 |
791,350 |
593,513 |
17,311 |
43,277 |
34,622 |
31/2 |
8 |
851,201 |
638,401 |
- |
- |
37,240 |
33/4 |
4 |
917700 |
688275 |
21,509 |
53,771 |
43,017 |
33/4 |
8 |
982,300 |
736,725 |
- |
- |
46,045 |
4 |
4 |
1052600 |
789450 |
26,315 |
65,788 |
52,630 |
4 |
8 |
1,121,950 |
841,463 |
- |
- |
56,098 |
ASTM A490
Varžto dydis |
TPI |
Įtempimas (svarai) |
Priveržimo sukimo momento diapazonas (ft-lbs) (min.–maks.) |
Min |
daugiausia |
Paprastas |
Suteptas |
1/2 |
13 |
15,000 |
18,000 |
125 - 150 |
63 - 75 |
5/8 |
11 |
24,000 |
29,000 |
250 - 302 |
125 - 151 |
3/4 |
10 |
35,000 |
42,000 |
438 - 525 |
219 - 263 |
7/8 |
9 |
49,000 |
59,000 |
715 - 860 |
357 - 430 |
1 |
8 |
64,000 |
77,000 |
1,067 - 1,283 |
533 - 642 |
11/8 |
7 |
80,000 |
96,000 |
1,500 - 1,800 |
750 - 900 |
11/4 |
7 |
102,000 |
122,000 |
2,125 - 2,542 |
1,063 - 1,271 |
13/8 |
6 |
121,000 |
145,000 |
2,773 - 3,323 |
1,386 - 1,661 |
11/2 |
6 |
148,000 |
178,000 |
3,700 - 4,450 |
1,850 - 2,225 |
ASTM A354-BD / SAE 8 klasė*
Varžto dydis |
TPI |
Įrodymo apkrova (svarai) 1 |
Gnybtų apkrova (lbs) 2 |
Priveržimo momentas (ft-lbs) |
Paprastas |
Suteptas |
1/4 |
20 |
3,800 |
2,850 |
12 |
6 |
5/16 |
18 |
6,300 |
4,725 |
25 |
12 |
3/8 |
16 |
9,300 |
6,975 |
44 |
22 |
7/16 |
14 |
12,750 |
9,563 |
70 |
35 |
1/2 |
13 |
17,050 |
12,788 |
107 |
53 |
9/16 |
12 |
21,850 |
16,388 |
154 |
77 |
5/8 |
11 |
27,100 |
20,325 |
212 |
106 |
3/4 |
10 |
40,100 |
30,075 |
376 |
188 |
7/8 |
9 |
55,450 |
41,588 |
606 |
303 |
1 |
8 |
72,700 |
54,525 |
909 |
454 |
11/8 |
7 |
91,550 |
68,663 |
1,287 |
644 |
11/4 |
7 |
120,000 |
90,000 |
1,875 |
938 |
13/8 |
6 |
138,600 |
103,950 |
2,382 |
1,191 |
11/2 |
6 |
168,600 |
126,450 |
3,161 |
1,581 |
13/4 |
5 |
228,000 |
171,000 |
4,988 |
2,494 |
2 |
41/2 |
300,000 |
225,000 |
7,500 |
3,750 |
21/4 |
41/2 |
390,000 |
292,500 |
10,969 |
5,484 |
21/2 |
4 |
480,000 |
360,000 |
15,000 |
7,500 |
23/4 |
4 |
517,650 |
388,238 |
17,794 |
8,897 |
3 |
4 |
626,850 |
470,138 |
23,507 |
11,753 |
31/4 |
4 |
745,500 |
559,125 |
30,286 |
15,143 |
31/2 |
4 |
874,650 |
655,988 |
38,266 |
19,133 |
33/4 |
4 |
1,014,300 |
760,725 |
47,545 |
23,773 |
4 |
4 |
1,163,400 |
872,550 |
58,100 |
29,085 |
* SAE J429 8 klasės varžtai neviršija 1–1/2 colio skersmens. |