RFC     [C-90]     (Minimum Yield Strength 90,000 psi, Minimum Ultimate Strength 100,000 psi)
Size Pipe Dimensions Grade Performance Properties Recommended Torque Values
Pipe Connection Pipe Body Connection Final Torque (min) Final Torque (max)
Nominal Weight Plain End Weight  Nominal Wall Thick
ness 		 Nominal Pipe Body O.D Nominal Pipe Body
I.D		 Nominal Pipe Body Area OD ID Drift Diameter Critical Area Joint Effici
ency		 Make-Up Loss Minimum Yield Strength  Minimum Collapse Pressure  Minimum Internal Yield Pressure Hydrostatic Test Pressure Joint Strength Reference Minimum Parting Load Reference String Length (FOS=1.4) Compre
ssion Rating
  lbs/ft lbs/ft in in in sq in in in in sq in % in C-90 lbs psi psi psi lbs lbs ft lbs ft-lbs ft-lbs
2 ⅜ 4.70 4.44 0.190 2.375 1.995 1.304 2.375 1.945 1.901 0.612 46.9 2.09 C-90 117,000 13,250 12,600 11,500 55,000 61,000 8,850 36,000 N/A N/A
 
2 ⅞ 6.50 6.17 0.217 2.875 2.441 1.812 2.875 2.361 2.347 0.893 49.3 2.12 C-90 163,000 12,390 11,890 10,900 80,000 89,000 9,270 43,000 N/A N/A
 
3 ½ 9.30 8.81 0.254 3.500 2.992 2.590 3.500 2.930 2.867 1.330 51.3 2.62 C-90 233,000 11,570 11,430 10,500 120,000 133,000 9,730 64,000 N/A N/A
3 ½ 10.30 9.92 0.289 3.500 2.922 2.915 3.500 2.842 2.797 1.548 53.1 2.68 C-90 262,000 13,640 13,000 11,900 139,000 155,000 10,010 73,000 N/A N/A
3 ½
12.80 12.32 0.368 3.500 2.764 3.621 3.500 2.684 2.639 2.064 57.0 2.68 C-90 326,000 16,940 16,560 15,100 186,000 206,000 10,780 88,000 N/A N/A
3 ½ 12.95 12.53 0.375 3.500 2.750 3.682 3.500 2.670 2.625 2.064 56.1 2.68 C-90 331,000 17,220 16,880 15,400 186,000 206,000 10,610 88,000 N/A N/A
3 ½ 15.50 14.64 0.449 3.500 2.602 4.304 3.500 2.522 2.477 2.064 48.0 2.68 C-90 387,000 20,130 20,210 18,500 186,000 206,000 9,070 88,000 N/A N/A
 
4
11.00 10.47 0.262 4.000 3.476 3.077 4.000 3.396 3.351 1.649 53.6 2.62 C-90 277,000 9,600 10,320 9,400 148,000 165,000 10,100 82,000 N/A N/A
4 11.60 11.35 0.286 4.000 3.428 3.337 4.000 3.348 3.303 1.803 54.0 2.62 C-90 300,000 11,270 11,260 10,300 162,000 180,000 10,190 82,000 N/A N/A
4 13.40 12.95 0.330 4.000 3.340 3.805 4.000 3.260 3.215 1.999 52.5 2.68 C-90 342,000 13,620 12,990 11,900 180,000 200,000 9,930 92,000 N/A N/A
 
4 ½
12.60 12.25 0.271 4.500 3.958 3.600 4.500 3.878 3.833 1.891 52.5 2.62 C-90 324,000 8,120 9,490 8,700 170,000 189,000 9,910 89,000 N/A N/A
4 ½ 13.50 13.05 0.290 4.500 3.920 3.836 4.500 3.840 3.795 1.891 49.3 2.62 C-90 345,000 9,300 10,150 9,300 170,000 189,000 9,300 89,000 N/A N/A
4 ½
15.10 15.00 0.337 4.500 3.826 4.407 4.500 3.746 3.701 2.319 52.6 2.75 C-90 397,000 12,220 11,800 10,800 209,000 232,000 9,950 121,000 N/A N/A
4 ½ 18.80 18.71 0.430 4.500 3.640 5.498 4.500 3.560 3.515 2.319 42.2 2.75 C-90 495,000 15,560 15,050 13,800 209,000 232,000 7,980 121,000 N/A N/A
 
5 15.00 14.88 0.296 5.000 4.408 4.374 5.000 4.328 4.283 2.204 50.4 2.93 C-90 394,000 7,830 9,320 8,500 198,000 220,000 9,500 106,000 N/A N/A
5
18.00 17.95 0.362 5.000 4.276 5.275 5.000 4.196 4.151 2.806 53.2 3.00 C-90 475,000 11,520 11,400 10,400 253,000 281,000 10,070 134,000 N/A N/A
5 20.30 20.03 0.408 5.000 4.184 5.886 5.000 4.104 4.059 2.806 47.7 3.00 C-90 530,000 13,490 12,850 11,800 253,000 281,000 9,020 135,000 N/A N/A
5 20.80 20.65 0.422 5.000 4.156 6.069 5.000 4.076 4.031 2.806 46.2 3.00 C-90 546,000 13,910 13,290 12,200 253,000 281,000 8,750 134,000 N/A N/A
5 23.20 23.11 0.478 5.000 4.044 6.791 5.000 3.964 3.919 2.806 41.3 3.00 C-90 611,000 15,560 15,060 13,800 253,000 281,000 7,820 134,000 N/A N/A
5 24.20 24.05 0.500 5.000 4.000 7.069 5.000 3.920 3.875 2.806 39.7 3.00 C-90 636,000 16,200 15,750 14,400 253,000 281,000 7,510 134,000 N/A N/A
 
5 ½ 17.00 16.89 0.304 5.500 4.892 4.962 5.500 4.812 4.767 2.521 50.8 3.37 C-90 447,000 6,740 8,710 8,000 227,000 252,000 9,600 119,000 N/A N/A
5 ½
20.00 19.83 0.361 5.500 4.778 5.828 5.500 4.698 4.653 3.113 53.4 3.43 C-90 525,000 9,630 10,340 9,500 280,000 311,000 10,080 144,000 N/A N/A
5 ½ 23.00 22.56 0.415 5.500 4.670 6.630 5.500 4.590 4.545 3.113 47.0 3.43 C-90 597,000 12,380 11,880 10,900 280,000 311,000 8,870 144,000 N/A N/A
5 ½ 26.00 25.56 0.476 5.500 4.548 7.513 5.500 4.468 4.423 3.113 41.4 3.43 C-90 676,000 14,230 13,630 12,500 280,000 311,000 7,820 143,000 N/A N/A
Note
Indicates interchangability
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