Casing Couplings
1.Applied in Casing from 4-1/2 to 20inch.
2.Thread Types:STC,LTC and BTC
3.Steel Grade: J55, N80, L80, P110 ect.
4.Meeting API Specification 5CT
5.Casing Coupling Pipe Grade identification by Paint Color
>>Casing couplings are available with Short Thread(STC),Long Thread(LTC),Buttress Thread(BTC).
>>The casing couplings are applied in casing whose sizes are from 4-1/2 to 20inch.
>>The steel grade of casing couplings are available with J55, N80, L80, P110 ect.
>>Surface has highly polished coating with clearly color band identification.
>>Material has excellent performance in hardness and anti-collapse (Charpy test).
>>High machining accuracy, with strict internal control precision.
>>Excellent anti-adhesion performance on thread.
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Size and Specifications For Casing Couplings |
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Descriptions and size |
Type of Therad |
O.D*L |
Weight |
|
|
Casing Coupling |
4-1/2" |
STC |
127.00*158.75 |
5.23 |
|
4-1/2" |
LTC |
127.00*177.80 |
4.15 |
|
|
4-1/2" |
BTC |
127.00*225.42 |
4.55 |
|
|
5" |
STC |
141.30*165.10 |
4.66 |
|
|
5" |
LTC |
141.30*196.85 |
5.75 |
|
|
5" |
BTC |
141.30*231.78 |
5.85 |
|
|
5-1/2" |
STC |
153.67*171.45 |
5.23 |
|
|
5-1/2" |
LTC |
153.67*203.20 |
6.42 |
|
|
5-1/2" |
BTC |
153.67*234.95 |
6.36 |
|
|
6-5/8" |
STC |
187.71*184.15 |
9.12 |
|
|
6-5/8" |
LTC |
187.71*222.25 |
11.34 |
|
|
6-5/8" |
BTC |
187.71*244.48 |
11.01 |
|
|
7" |
STC |
194.46*184.15 |
8.39 |
|
|
7" |
LTC |
194.46*228.60 |
10.83 |
|
|
7" |
BTC |
194.46*254.00 |
10.54 |
|
|
7-5/8" |
STC |
215.90*190.50 |
12.30 |
|
|
7-5/8" |
LTC |
215.90*234.95 |
15.63 |
|
|
7-5/8" |
BTC |
215.90*263.52 |
15.82 |
|
|
8-5/8" |
STC |
244.48*196.85 |
16.23 |
|
|
8-5/8" |
LTC |
244.48*254.00 |
21.67 |
|
|
8-5/8" |
BTC |
244.48*269.88 |
20.86 |
|
|
9-5/8" |
STC |
269.88*196.85 |
18.03 |
|
|
9-5/8" |
LTC |
269.88*266.70 |
25.45 |
|
|
9-5/8" |
BTC |
269.88*269.88 |
23.16 |
|
|
10-3/4" |
STC |
298.45*203.20 |
20.78 |
|
|
10-3/4" |
BTC |
298.45*269.88 |
25.74 |
|
|
11-3/4' |
STC |
323.85*203.20 |
22.64 |
|
|
11-3/4' |
BTC |
323.85*269.88 |
28.03 |
|
|
13-3/8" |
STC |
365.12*203.20 |
25.66 |
|
|
13-3/8" |
BTC |
365.12*269.88 |
31.77 |
|
|
16" |
STC |
431.80*228.6 |
34.91 |
|
|
16" |
BTC |
431.80*269.88 |
40.28 |
|
|
18-5/8" |
STC |
508.00*228.60 |
51.01 |
|
|
18-5/8" |
BTC |
508.00*269.88 |
62.68 |
|
|
20" |
STC |
533.40*228.6 |
43.42 |
|
|
20" |
LTC |
533.4*292.10 |
57.04 |
|
|
20" |
BTC |
533.40*269.88 |
50.10 |
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API 5CT Certificate For Casing Couplings
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Production Capacity of Casing Couplings
Delivery and Package of Casing Couplings
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