String Book - Logan Oil Tools
String Book - Logan Oil Tools
String Book - Logan Oil Tools
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56<br />
tUBing maKe-Up torQUe<br />
Values shown are applicable to standard couplings with standard box OD and are based on use<br />
of an API modified-type thread lubricant according to API Bulletin 5A2. Other thread lubricants might<br />
require correction factors for make-up torque. Contact manufacturers of premium threads for their<br />
recommendations.<br />
non-upSEt RECoMMEnDED MAkE-up toRQuE *<br />
o.D. Weight torque (ft-Ib)<br />
(in) (Ib/ft) grade Minimum optimum Maximum<br />
H-40 690 920 1150<br />
J-55 910 1210 1510<br />
7.70 C-75 1200 1600 2000<br />
N-80 1280 1700 2130<br />
H-40 840 1120 1400<br />
J-55 1110 1480 1850<br />
9.20 C-75 1460 1950 2440<br />
3.500 N-80 1550 2070 2590<br />
P-105 1970 2620 3280<br />
H-40 980 1310 1640<br />
J-55 1290 1720 2150<br />
10.20 C-75 1700 2270 2840<br />
N-80 1810 2410 3010<br />
C-75 2270 3030 3790<br />
12.70 N-80 2410 3210 4010<br />
P-105 3050 4060 5080<br />
H-40 710 940 1180<br />
J-55 930 1240 1550<br />
4.000 9.50 C-75 1230 1640 2050<br />
N-80 1310 1740 2180<br />
H-40 990 1320 1650<br />
J-55 1310 1740 2180<br />
4.500 12.60 C-75 1730 2300 2880<br />
N-80 1830 2440 3050<br />
* Data reprinted from API Bulletin RP5C1, “Recommended Practice for Care and Use of Casing,<br />
Tubing, and Drill Pipe,” Twelfth Edition, March 1981.
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