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API 5CT /5B OCTG steel Casing Pipe

Steel Casing Pipe, also known as encasement pipe, is most commonly used in underground construction to protect utility lines of various types from getting damaged. Such damage might occur due to the elements of nature or human activity.

Steel casing pipe is used in different types of horizontal underground boring, where the pipe is jacked into an augered hole in segments and then connected together by welding or by threaded and coupled ends. The steel casing pipe can also be set up and welded into a “ribbon” and then directionally pulled through a previously drilled hole under highways, railroads, lakes and rivers.

Descriptions of API 5CT /5B OCTG steel Casing Pipe :
1 Production Process: Seamless & ERW
2 Specification: API 5CT /5B
3 Out Diameter: 4 1/2″- 20″ (114.3mm-508mm)
4 Thread: LTC ( Long Round Thread), STC ( Short Round Thread), BTC ( Buttress Thread) and other premium connections which can be made as per the given drawings
5 Length:R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m))
6 Steel Grade: H-40, J55, K-55, N-80, L-80, P110, Q-125
7 Surface: Corrosion proofing water based paint
8 Heat treatment: Normalized, Quencher+Temper

steel CASING PIPES
 STANDARD: API SPEC 5CT
Outside Diameter Specified(mm)Nominal Weight Threads & CouplingSteel GradeW.T  (mm)Type of Thread
Ib/ftShort  LongButtress TG-QMI
114.30(4 1/2″)9.50H,J,K5.21YES
10.50J,K5.69YESYES
11.60J,K,C,L,N,P6.35YESYESYES
13.50C,L,N,P7.37YESYES
15.10P,Q8.56YESYES
127.00(5″)11.50J,K5.59YES
13.00J,K6.43YESYESYES
15.00J,K,C,L,N,P7.52YESYESYES
18.00C,L,N,P,Q9.19YESYES
21.40C,L,N,P,Q11.10YESYES
23.20C,L,N,P,Q12.14YESYES
24.10C,L,N,P,Q12.70YESYES
139.70(5 1/2″)14.00H,J,K6.20YES
15.50J,K6.98YESYESYESYES
17.00J,K,C,L,N,P7.72YESYESYESYES
20.00C,L,N,P9.17YESYESYES
23.00C,L,N,P,Q10.54YESYESYES
168.28(6 5/8″)20.00H,J,K7.32YESYESYES
24.00J,K,C,L,N,P8.94YESYESYES
28.00C,L,N,P10.59YESYES
32.00C,L,N,P,Q12.06YESYES
177.80(7″)20.00H,J,K6.91YES
23.00J,K,C,L,N8.05YESYESYESYES
26.00J,K,C,L,N,P9.19YESYESYESYES
29.00C,L,N,P10.36YESYESYES
32.00C,L,N,P11.51YESYESYES
35.00C,L,N,P,Q12.65YESYESYES
38.00C,L,N,P,Q13.72YESYESYES
193.68(7 5/8″)24.00H7.62YES
26.40J,K,C,L,N8.33YESYESYES
29.70C,L,N,P9.52YESYES
33.70C,L,N,P10.92YESYES
39.00C,L,N,P,Q12.70YESYES
42.80C,L,N,P,Q14.27YESYES
45.30C,L,N,P,Q15.11YESYES
47.10C,L,N,P,Q15.88YESYES
196.85(7 3/4″)46.10C,L,N,P,Q15.11
219.08(8 5/8″)24.00J,K6.71YES
28.00H7.72YES
32.00H,J,K8.94YESYESYES
36.00J,K,C,L,N10.16YESYESYES
40.00C,L,N,P11.43YESYES
44.00C,L,N,P12.70YESYES
49.00C,L,N,P,Q14.15YESYES
244.48(9 5/8″)32.30H7.92YES
36.00H,J,K8.94YESYESYESYES
40.00J,K,C,L,N10.03YESYESYES
43.50C,L,N,P11.05YESYESYES
47.00C,L,N,P,Q11.99YESYESYES
53.50C,L,N,P,Q13.84YESYESYES
273.05(10 3/4″)32.75H7.09YES
40.50H,J,K8.89YESYES
45.50J,K10.16YESYES
51.00J,K,C,L,N,P11.43YESYES
55.50C,L,N,P12.57YESYES
60.70P,Q13.84YESYES
65.70P,Q15.11YESYES
298.45(11 3/4″)42.00H8.46YES
47.00J,K,M9.53YESYES
54.00J,K,M11.05YESYES
60.00J,K,M,L,N,C,P,Q12.42YESYES
339.7(13 3/8″)48.00H8.38YES
54.50J,K9.65YESYES
61.00J,K10.92YESYES
68.00J,K,C,L,N,P12.19YESYES
72.00C,L,N,P,Q13.06YESYES
406.40(16″)65.00H9.53YES
75.00J,K,M11.13YESYES
84.00J,K,M12.57YESYES
473.08(18 5/8″)87.50H,J,K,M11.05YESYESYES
508.00(20″)94.00H,J,K11.13YESYESYES
106.50J,K12.70YESYESYES
133.00J,K16.13YESYESYES

 

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