hemos obtenido ISO 9001, ISO 14001, ISO 45001, CE, certificación de calificación crediticia de nivel AAA, etc.
API 5B, Specification for Threading, Gauging and Thread Inspection ofCasing,Tubing, and Line Pipe Threads.This Specification covers dimensions, tolerances and marking requirements for API threads and the gauges that control the acceptance criteria for the threads. Thread element gauges, instruments and requirements for the inspection of threads for line pipe, round thread casing, and buttress casing connections are included.
BUTTRESS CASING (BCSG)
|
SIZE |
T.P.I. |
T.P.F. |
PITCH DIAMETER |
STANDOFF TOLERANCE |
|
4-1/2 |
5 |
1:16 |
113.132 |
2.540±0.381 |
|
5 |
125.832 |
5.080±0.381 |
||
|
5-1/2 |
138.532 |
|||
|
6-5/8 |
167.107 |
|||
|
7 |
176.632 |
|||
|
7-5/8 |
192.507 |
|||
|
8-5/8 |
217.907 |
|||
|
9-5/8 |
243.307 |
|||
|
10-3/4 |
271.882 |
|||
|
11-3/4 |
297.282 |
|||
|
13-3/8 |
338.557 |
|||
|
16 |
1:12 |
404.825 |
4.445±0.381 |
|
|
18-5/8 |
471.500 |
|||
|
20 |
506.425 |
