API FLANGE 6A Version 10.4

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RECOMMENDED TORQUE FOR FLANGE BOLTING (B7/L7 STUDS)Stud Diameter Link Size A.F. Inches Metric Reference Inches A.F. MetricTension TensionRAPID-TORC TOOL & PRESSURETorqueTorqueRAPID-TORC TOOL & PRESSURETorqueTorqueKnlbfBolt Stress - 52.5 ksi or 360 MpaStud Yield Point 105 ksi or 720 MpaNmFt.lbsBolt Stress - 52.5 ksi or 360 MpaStud Yield Point 105 ksi or 720 MpaNmFt.lbsRecommended Torques for Flange Bolting Source: Api 6-A, Latest Edition Appendix D, Table D1 & D2 ANSI / API 6A / ISO 10423:2003 Feb 1, 2005Stud Quality B7 - L7Recommanded Rapid-Torc machineFriction =0,07 =0,07Stud Quality B7 - L7Recommanded Rapid-Torc machineFriction =0,13 =0,131/2" 5/8" 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 1/4" 2 1/2"12,70 15,88 19,05 22,23 25,40 28,58 31,75 34,93 38,10 41,28 44,45 47,63 50,80 57,15 63,5014 101 104 107 110 113 200 203 206 209 212 215 302 308 3147/8" 1 1/16" 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" 3 1/2" 3 7/8"22,224 27,000 31,740 36,511 41,274 46,000 50,799 55,561 60,324 65,000 69,848 74,611 79,373 88,898 98,42333 52 78 107 141 184 232 286 346 412 484 561 644 826 1.0327450 11865 17559 24241 31802 41499 52484 64759 78322 93173 109313 126741 145458 186758 233212MANUAL WRENCH 100 Nm MANUAL WRENCH 100 Nm MANUAL WRENCH 200 Nm MANUAL WRENCH 300 Nm MANUAL 550 Nm RTX-2 @ 1,700 PSI48 92 160 253 376 540 745 996 1297 1653 2069 2549 3097 4418 606835 68 118 188 279 401 553 739 962 1226 1534 1890 2297 3276 4500MANUAL WRENCH 100 Nm MANUAL WRENCH 200 Nm MANUAL WRENCH 300 Nm MANUAL 550 Nm RTX-2 @ 1,800 PSI80 155 270 429 639 925 1285 1727 2261 2894 3636 4493 5476 7851 1082859 115 200 319 474 686 953 1281 1677 2146 2696 3332 4061 5822 8030RTX-2 @ 2,700 PSI RTX-2 @ 4,000 PSI RTX-2 @ 5,6000 PSI RTX-2 @ 7,600 PSI RTX-4 @ 4,400 PSI RTX-4 @ 5,500 PSI RTX-4 @ 7,000 PSI RTX-4 @ 8,600 PSI RTX-8 @ 5,100 PSI RTX-8 @ 7,200 PSI RTX-14 @ 6,000 PSIRTX-2 @ 2,400 PSI RTX-2 @ 3,200 PSI RTX-2 @ 4,400 PSI RTX-2 @ 5,600 PSI RTX-2 @ 7,200 PSI RTX-2 @ 9,000 PSI RTX-4 @ 4,000 PSIRTX-4 @ 4,900 PSI RTX-4 @ 5,900 PSI RTX-4 @ 8,500 PSI RTX-8 @ 4,100 PSIRTX-8 @ 5,600 PSIStud Diameter Link Size A.F. Inches Metric Reference InchesA.F. MetricTensionTensionB7-L7 - 47,5 ksi or 327,5 MpaStud Yield Point 95 ksi or 655 MpaTorqueTorqueB7-L7 - 47,5 ksi or 327,5 MpaStud Yield Point 95 ksi or 655 MpaTorqueTorqueKnlbfRecommended Torques for Flange Bolting Source: Api 6-A, Latest Edition Appendix D, Table D1 & D2 ANSI / API 6A / ISO 10423:2003 Feb 1, 2005 Recommanded Rapid-Torc machineNm =0,07ft. lbs =0,07Nm =0,13ft. lbs =0,13Recommanded Rapid-Torc machine2 5/8" 2 3/4" 3" 3 1/4" 3 1/2" 3 3/4" 3 7/8" 4"66,68 69,85 76,20 82,55 88,90 95,25 98,43 101,60401 404 410 500 506 512 515 6024 1/16" 4 1/4" 4 5/8" 5" 5 3/8" 5 3/4" 5 15/16" 6 1/8"103,180 107,948 117,472 126,998 136,525 146,050 150,810 155,5701.040 1.146 1.375 1.624 1.899 2.185 2.338 2.496233765 257694 309050 365070 426891 491099RTX-8 @ 5,900 PSI RTX-8 @ 6,700 PSI RTX-8 @ 8,700 PSI RTX-14 @ 5,300 PSI6394 7354 9555 121544716 5424 7047 8965RTX-14 @ 6,400 PSI RTX-14 @ 7,300 PSI RTX-14 @ 9,500 PSI RTX-18 @ 9,050 PSI RTX-18 @ 7,200 PSI RTX-30 @ 5,200 PSI11429 131688430 971217156 12654 21878 16136RTX-14 @ 6,700 PSIRTX-18 @ 7,800 PSI RTX-30 @ 4,800 PSI RTX-30 @ 5,300 PSI18685 13782 20620 15208 22683 16730RTX-30 @ 7,800 PSI RTX-30 @ 8,700 PSI RTX-30 @ 9,500 PSI33766 24905 37293 27506 41057 30282525521 RTX-18 @ 8,500 PSI 561108 RTX-18 @ 9,400 PSIThe tables in this document are for the convenience of the user only and are based on calculations which assume certain friction coefficients for the friction between studs and nuts, and between the nuts and the flanges face. Threads dimensions, surface finish of studs, nuts, flange face, degree of parallelism, lubrification, coating are some factors which affect the relationship between nut torque and stud stress. Two Coefficient of friction are used in the tables. A Coefficient of friction of 0,13 approximates the friction with threads and nut bearing surfaces being bare metal well-lubricated with thread coumpound tested in accordance with ISO 13678. A coefficient of friction of 0,07 approximates threads and nut face coated with fluoropolymer material Minimum B7 Stud Yield Strength in PSI: From Bolt size 3/4" up to 2 1/2": 105,000 psi - From Bolt size 2 3/4" up to 4": 95,000 psi - From 4" up to 6": 75,000 psi Tools recommandation are based on the concept "Best to Tight". User must anticipate the dissassembly. If no overhead limited clearance, RT Series w/ Square Drive using Impact Socket is perfect. Check on www.rapidtorc.com or email to sales@rapidtorc.comVersion 10- 4 Rapid-Torc June 16th, 2007

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