Coupling Specs

API CASING COUPLINGS – SHORT THREAD (STC)

Casing Coupling Coupling Weight per
API Casing Couplings Size OD Size OD Length Coupling Palletized Palletized
Short Thread (inches) (inches) (inches) (lbs) Quantity Weight
4-1/2 5.000 6.250 7.98
5-1/2 6.050 6.750 11.54
7 7.656 7.250 18.49
7-5/8 8.500 7.500 27.11
8-5/8 9.625 7.750 35.79 128 4581
9-5/8 10.625 7.750 39.75 112 4452

 

API CASING COUPLINGS – LONG THREAD (LTC)

Casing Coupling Coupling Weight per
API Casing Couplings Size OD Size OD Length Coupling Palletized Palletized
Long Thread (inches) (inches) (inches) (lbs) Quantity Weight
4-1/2 5.000 7.000 9.16 448 4104
5-1/2 6.050 8.000 14.15 294 4160
7 7.656 9.000 23.87 150 3581
7-5/8 8.500 9.250 34.46
8-5/8 9.625 10.000 47.77 96 4586
9-5/8 10.625 10.500 56.11 80 4489

 

API CASING COUPLINGS – BUTTRESS THREAD (BTC)

Casing Coupling Coupling Weight per
API Casing Couplings Size OD Size OD Length Coupling Palletized Palletized
Buttress Thread (inches) (inches) (inches) (lbs) Quantity Weight
4-1/2 5.000 8.875 10.12
5-1/2 6.050 9.250 14.15 245 3467
7 7.656 10.000 23.24
7-5/8 8.500 10.375 34.88
8-5/8 9.625 10.625 45.99 80 3679
9-5/8 10.625 10.625 51.05 80 4084

 

API TUBING COUPLINGS – EXTERNAL UPSET END (EUE)

Casing Coupling Coupling Weight per
API EUE Tubing Size OD Size OD Threads Length Coupling Palletized Palletized
Couplings (inches) (inches) per inch (inches) (lbs) Quantity Weight
2-3/8 3.063 8 Round 4.875 3.43 1152 3951
2-7/8 3.668 8 Round 5.250 5.30 800 4240
3-1/2 4.500 8 Round 5.750 9.03 448 4045
4 5.000 8 Round 6.000 10.63
4-1/2 5.563 8 Round 6.250 13.33

 

API TUBING COUPLINGS – NON UPSET END (NUE)

Casing Coupling Coupling Weight per
API Non-Upset Size OD Size OD Threads Length Coupling Palletized Palletized
Tubing Couplings (inches) (inches) per inch (inches) (lbs) Quantity Weight
2-3/8 2.875 10 Round 4.250 2.82 1152 3249
2-7/8 3.500 10 Round 5.125 5.15 800 4120
3-1/2 4.250 10 Round 5.625 8.17 448 3660
4 4.750 8 Round 5.750 9.58
4-1/2 5.200 8 Round 6.125 10.77

 

COUPLING PIPE GRADE IDENTIFICATION BY PAINT COLOR

Grade Color Coding (Painted Outside)
J-55 or K-55 Green
N-80 Red with One Green Band
L-80 Red with One Brown Band
P-110 White