Torque Chart for ASTM A193 Grade B7 Studs

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs. at 100% of yield Bolt Diameter

Nut Size

3/4" 7/8" 1" 1-1/8" 1-1/4" 1-3/8" 1-1/2" 1-5/8" 1-3/4" 1-7/8" 2" 2-1/8" 2-1/4" 2-3/8" 2-1/2" 2-3/4" 3" 3-1/4" 3-1/2" 3-3/4" 4" 4-1/4" 4-1/2"

1-1/4" 1-7/16" 1-5/8" 1-13/16" 2" 2-3/16" 2-3/8" 2-9/16" 2-3/4" 2-15/16" 3-1/8" N/A 3-1/2" N/A 3-7/8" 4-1/4" 4-5/8" 5" 5-3/8" 5-3/4" 6-1/8" 6-1/2" 6-7/8"

Moly Lube u=0.085 208 330 490 702 966 1288 1674 2142 2676 3292 3994 4790 5686 6686 7796 9382 13974 15470 19312 23742 27262 28802 32348

Nickel Lube u=0.110 342 544 810 1170 1622 2180 2850 3668 4602 5682 6920 8324 9906 11676 13646 16488 21464 27352 34226 42168 48590 51248 57742

Copper Lube u=0.100 314 500 746 1076 1492 2000 2614 3364 4218 5204 6334 7618 9068 10678 12476 15066 19606 24976 31244 38482 44324 46758 52664

Machine Oil u=0.160 448 716 1066 1544 2150 2894 3792 4890 6144 7596 9260 11150 13282 15668 18324 22170 28894 36856 46158 56906 65652 69206 78058

Dry u=0.400 1118 1786 2664 3888 5440 7356 9274 12520 15776 19550 23884 28816 34382 40620 47536 57692 75340 96258 120730 149032 172292 181440 205026

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs at 70% of yield Bolt Diameter

Nut Size

Moly Lube Nickel Lube Copper Lube u=0.085 u=0.110 u=0.100 3/4" 1-1/4" 145 239 219 7/8" 1-7/16" 231 380 350 1" 1-5/8" 343 567 522 1-1/8" 1-13/16" 491 819 753 1-1/4" 2" 676 1135 1044 1-3/8" 2-3/16" 901 1526 1400 1-1/2" 2-3/8" 1171 1995 1829 1-5/8" 2-9/16" 1499 2567 2354 1-3/4" 2-3/4" 1873 3221 2952 1-7/8" 2-15/16" 2304 3977 3642 2" 3-1/8" 2795 4844 4433 2-1/8" N/A 3353 5826 5332 2-1/4" 3-1/2" 3980 6934 6343 2-3/8" N/A 4680 8173 7474 2-1/2" 3-7/8" 5457 9552 8733 2-3/4" 4-1/4" 6567 11541 10546 3" 4-5/8" 9781 15024 13724 3-1/4" 5" 10829 19146 17483 3-1/2" 5-3/8" 13518 23958 21870 3-3/4" 5-3/4" 16619 29517 26937 4" 6-1/8" 19083 34013 32730 4-1/4" 6-1/2" 20161 35873 31026 4-1/2" 6-7/8" 22643 40419 36864 u= The coefficient of friction of the lubricant Figures are a GUIDE only, always consult the manufacturer or area engineer

Machine Oil u=0.160 313 501 746 1080 1505 2025 2654 3423 4300 5317 6482 7805 9297 10367 12862 15519 20225 25799 32310 39834 45956 48444 54640

Dry u=0.400 782 1250 1864 2721 3808 5149 6491 8764 11043 13685 16718 20171 24067 28434 33275 40384 52738 67380 84511 10432 12700 12060 14351

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs at 60% of yield Bolt Diameter

Nut Size

3/4"

1-1/4"

Moly Lube u=0.085

Nickel Lube u=0.110 125

Copper Lube Machine Oil Dry u=0.100 u=0.160 u=0.400 205 188 269

671

7/8" 1" 1-1/8" 1-1/4" 1-3/8" 1-1/2" 1-5/8" 1-3/4" 1-7/8" 2" 2-1/8" 2-1/4" 2-3/8" 2-1/2" 2-3/4" 3" 3-1/4" 3-1/2" 3-3/4" 4" 4-1/4" 4-1/2"

1-7/16" 1-5/8" 1-13/16" 2" 2-3/16" 2-3/8" 2-9/16" 2-3/4" 2-15/16" 3-1/8" N/A 3-1/2" N/A 3-7/8" 4-1/4" 4-5/8" 5" 5-3/8" 5-3/4" 6-1/8" 6-1/2" 6-7/8"

198 294 421 579 773 1004 1285 1605 1975 2396 2874 3411 4011 4677 5629 8384 9282 11587 14245 15301 16357 19408

326 486 702 973 1308 1704 2200 2761 3409 4152 4994 5943 7005 8187 9892 12878 16411 20535 25300 27227 29154 34645

300 447 645 895 1200 1568 2018 2530 3122 3800 4570 5437 6406 7485 9039 11763 14985 18746 23089 24842 26594 31598

430 640 926 1290 1736 2275 2934 3686 4557 5556 6690 7969 9400 10994 13302 17336 22113 27694 34143 36767 39391 46834

1072 1598 2333 3264 4414 5564 7512 9465 11730 14330 17289 20629 24372 28521 34615 45204 57754 72438 89419 96397 103375 123015

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs at 50% of yield Bolt Diameter

Nut Size

Moly Lube u=0.085

Nickel Lube u=0.110

Copper Lube Machine Oil Dry u=0.100 u=0.160 u=0.400 157 224 559 250 358 893 373 533 1332 538 772 1944 746 1075 2720 1000 1447 3678 1307 1896 4637 1682 2445 6260 2109 3072 7888 2602 3798 9775 3167 4630 11942 3809 5575 14408 4531 6641 17191 5339 7834 20310 6238 9162 23768 7533 11085 28846 9803 14447 37670 12488 18428 48129 15622 23079 60365 19241 28453 74516 22162 32826 86146 23379 34603 90720 26332 39029 102513

3/4" 1-1/4" 104 171 7/8" 1-7/16" 165 272 1" 1-5/8" 245 405 1-1/8" 1-13/16" 351 585 1-1/4" 2" 483 811 1-3/8" 2-3/16" 644 1090 1-1/2" 2-3/8" 837 1425 1-5/8" 2-9/16" 1071 1834 1-3/4" 2-3/4" 1338 2301 1-7/8" 2-15/16" 1646 2841 2" 3-1/8" 1997 3460 2-1/8" N/A 2395 4162 2-1/4" 3-1/2" 2843 4653 2-3/8" N/A 3343 5838 2-1/2" 3-7/8" 3898 6823 2-3/4" 4-1/4" 4691 8244 3" 4-5/8" 6987 10732 3-1/4" 5" 7735 13676 3-1/2" 5-3/8" 9656 17113 3-3/4" 5-3/4" 11871 21084 4" 6-1/8" 13631 24295 4-1/4" 6-1/2" 14401 25624 4-1/2" 6-7/8" 16174 28871 u= The coefficient of friction of the lubricant Figures are a GUIDE only, always consult the manufacturer or area engineer

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs at 40% of yield Bolt Diameter

Nut Size

3/4" 7/8" 1" 1-1/8" 1-1/4" 1-3/8" 1-1/2"

1-1/4" 1-7/16" 1-5/8" 1-13/16" 2" 2-3/16" 2-3/8"

Moly Lube u=0.085

Nickel Lube u=0.110 83 132 196 280 386 515 669

136 217 324 468 649 872 1140

Copper Lube Machine Oil Dry u=0.100 u=0.160 u=0.400 126 179 200 286 298 426 430 617 597 1075 800 1158 1045 1517

447 714 1066 1555 2176 2942 3710

1-5/8" 1-3/4" 1-7/8" 2" 2-1/8" 2-1/4" 2-3/8" 2-1/2" 2-3/4" 3" 3-1/4" 3-1/2" 3-3/4" 4" 4-1/4" 4-1/2"

2-9/16" 2-3/4" 2-15/16" 3-1/8" N/A 3-1/2" N/A 3-7/8" 4-1/4" 4-5/8" 5" 5-3/8" 5-3/4" 6-1/8" 6-1/2" 6-7/8"

857 1070 1317 1598 1916 2274 2674 3118 3752 5589 6188 7725 9497 10905 11520 12939

1467 1841 2273 2768 3329 3962 4670 5458 6595 8585 10940 13690 16867 19436 20499 23096

1345 1687 2082 2534 3047 3624 4271 4990 6026 7842 9990 12497 15392 17729 18703 21065

1956 2458 3038 3704 4460 5312 6267 7329 8868 11557 14742 18463 28453 26260 27682 31232

5008 6310 7820 9554 11526 13753 16248 19014 23076 30136 38503 44829 59612 68916 72576 82010

Torque Chart for ASTM A193 Grade B7 Studs in Ft./Lbs at 30% of yield Bolt Diameter

Nut Size

Moly Lube u=0.085

Nickel Lube u=0.110

Copper Lube u=0.100

3/4" 1-1/4" 62 103 7/8" 1-7/16" 99 163 1" 1-5/8" 147 243 1-1/8" 1-13/16" 211 351 1-1/4" 2" 290 486 1-3/8" 2-3/16" 386 855 1-1/2" 2-3/8" 502 1426 1-5/8" 2-9/16" 642 1100 1-3/4" 2-3/4" 803 1380 1-7/8" 2-15/16" 987 1705 2" 3-1/8" 1198 2076 2-1/8" N/A 1437 2497 2-1/4" 3-1/2" 1706 2972 2-3/8" N/A 2006 3503 2-1/2" 3-7/8" 2339 4094 2-3/4" 4-1/4" 2815 4946 3" 4-5/8" 4192 6439 3-1/4" 5" 4635 8206 3-1/2" 5-3/8" 5793 10268 3-3/4" 5-3/4" 7122 12650 4" 6-1/8" 8641 15374 4-1/4" 6-1/2" 8178 14577 4-1/2" 6-7/8" 9704 17322 u= The coefficient of friction of the lubricant Figures are a GUIDE only, always consult the manufacturer or area engineer

94 150 224 322 448 600 784 1009 1265 1561 1900 2285 2719 3203 3743 4520 5882 7493 9373 11545 14027 13297 15799

Machine Oil u=0.160 134 215 320 463 645 868 1137 1467 1843 2278 3345 3984 4700 5497 6651 8668 11057 13847 17072 20761 19695 20761 23417

Dry u=0.400 335 536 799 1168 1632 2207 2782 3767 4733 5865 7165 8645 10310 12180 14260 17300 22600 28870 36210 44700 51680 54430 61500