S9074-AR-GIB-010/278
TABLE XII Torque-tension minimum values (80 percent of yield strength)
Carbon Steel & Stainless Steel ( 35 klbs/in2 yield strength)
Aluminum (15 klbs in2 yield strength)
UNS NO6625 (60klbs/in2 yield strength)
Minor Thread Diameter Axial Load
Stud Side and Thread Class UNC. UNF NC/NF Class 2A
Axial Load
Torque
Axial Load
Torque
Torque
Axial Load
Inches
Inch-lbs
Inch-lbs
Inch-lbs
lbs
lbs
lbs
179 215 331 397 557 638 882 982
10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 5/8-11 5/8-18 3/4-10 3/4-16 7/8-14 1.0-8 1.0-14 1-1/8.7 1-1/8-12
0.1379 .1508 .1876 .2052 .2431 .2603 .2970 .3228 .3485 .3749 .4041 .4374 .5119 .5554 .6255 .6718 .7368 .8446 .8960 .9475 1.0210
417 501 773 927
715 859
15 19 37 49 81
4 5 9
9 11 22 29 47 58 86
1325 1588 2227 2553 3326 3926 4579 5299 6153 7214 9878
12 20 25 37 48 60 75 93
1299 1490 1940 2290 2761 3091 3590 4208 5762 6784 8604 9926
100 149 190 239 298 373 473 759 969
111 144 174 218 276 442 565 807
1145 1325 1538 1804 2470 2908 3688 4254 5117 5820 6725 7566 8461 9824
118 190 242 346 429 566 686 852
11630 14750 17015 20466 23278 26897 30261 33842 39294
1384 1715 2262 2744 3408 4067 4810 6018
1000 1320 1601 1988 2373 2806 3511
11939 13580 15691 17654 19743 22724
1017 1203 1505
11.5.3 Rejection Procedure
(a)
Beginning of set-up or shift. If any of the five studs tested show signs of failure. the conditions causing failure shall be rectified and the test repeated.
(b)
End of shift or set-up. If any of the five studs tested show signs of failure. a sampling plan shall be used to determine the extent of defective stud welding performed during the shift or set-up. The conditions causing failure shall be corrected and all defective studs welded during the shift or set-up shall be replaced.
Original 103
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