Tubing / Casing Couplings -API 5CT

Buttress Thread Coupling Dimensions (mm), Weigths (Kg) All Groups

  Outside diameter   Weight (Kg)
Size Designation* Regular Special Clearance Length Minimum Diameter of Counterbore Width of Bearing Face Regular Special Clearance
41/2"
 127,00 123,83 225,40 117,86 3,18 4,55 3,45
5 141,30 136,53 231,80 130,56 3,97 5,85 3,96
5 1/2"
153,67 149,23 235,00 143,26 3,97 6,36 4,43
6 5/8"
187,71 177,80 244,50 171,83 6,35 11,01 5,60
7 194,46 187,30 254,50 181,40 5,56 10,45 6,22
7 5/8"
215,90 206,40 263,50 197,20 7,94 15,68 9,20
8 5/8"
244,48 231,80 269,90 222,60 9,53 20,67 10,70
9 5/8"
269,88 257,20 269,90 248,00 9,53 22,95 11,91
10 3/4"
298,45 285,80 269,90 276,00 9,53 25,51 13,28
11 3/4"
323,85 - 269,90 302,00 9,53 22,78 -
13 3/8"
365,13 - 269,90 343,30 9,53 31,48 -
16 431,80 - 269,90 410,30 9,53 39,93 -
18 5/8"
508,00 - 269,90 477,00 9,53 62,12 -
20 533,40 - 269,90 511,90 9,53 49,66 -

*The Size Designation of the coupling is the same as the corresponding size dimension


GROUP 1
Group Type
H40 -
J55 -
K55 -
N80 -
GROUP 2
Grade Type
L80 1
L80 9Cr
L80 13Cr
C90 1
C90 2
C90 -
T95 1
T95 2
GROUP 3
Grade Type
P110 -
GROUP 4
Grade Type
Q125 1
Q125 2
Q125 3
Q125 4



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