| Customization: | Available |
|---|---|
| After-sales Service: | Online Support |
| Warranty: | 1 Year |
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API 5CT 10th OCTG Tubing Coupling and Casing Coupling
Couplings are short lengths of pipe used to connect 2 joints of tubing or casing.
They come with painted colour codes on their external surface to indicate their grades.
Couplings are manufactured according to API 5CT and 5B specifications.
Coupling manufactured from 1-1/3" to 30" according to API standard. It is treated with phosphating or copper plating and have good abrasion& corrosion resistance. Threads have strong viscous resistance. Also customized couplings can be supplied according to special requirement, such as special-clearance coupling, combination coupling, reducing coupling, seal-ring coupling, special-bevel tubing coupling, ect.
Std Ref.:API 5CT 5B ISO
Grade:J55,K55, N80-1,N80-Q,L80,C90,P110
Size: 1.9"~4-1/2" for tubing, 4-1/2" to 20" for casing
Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).
| Specification | ||
| Size (Pipe OD) (in) | 1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 | |
| Upset |
Non Upset External Upset |
|
| Grade | J-55, C-75, L-80, N-80, C-95, P-110 | |
| Option |
Electro-zinc plated Phosphorised |
|
| Specification | ||
| Size (Pipe OD) (in) | 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8, 10-3/4, 11-3/4, 13-3/8, 16, 18-5/8, 20 | |
| Threading |
Short Round-Thread Casing (STC) Long Round-Thread Casing (LC) Buttress Thread Casing (BC) |
|
| Grade | H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR | |
Casing Coupling(BTC/LC)
| Size | OD | Length | Weight | ||||||||
| STC | LC | STC | LC | ||||||||
| in | mm | in | mm | in | mm | in | mm | lb | kg | lb | kg |
| 4-1/2 | 114.30 | 5.000 | 127.00 | 6-1/4 | 158.75 | 7 | 177.80 | 7.98 | 3.62 | 9.16 | 4.15 |
| 5 | 127.00 | 5.563 | 141.30 | 6-1/2 | 165.10 | 7-3/4 | 196.85 | 10.27 | 4.66 | 12.68 | 5.75 |
| 5-1/2 | 139.00 | 6.050 | 153.67 | 6-3/4 | 171.45 | 8 | 203.20 | 11.54 | 5.23 | 14.15 | 6.42 |
| 6-5/8 | 168.28 | 7.390 | 187.71 | 7-1/4 | 184.15 | 8-3/4 | 222.25 | 20.11 | 9.12 | 25.01 | 11.34 |
| 7 | 144.80 | 7.656 | 194.46 | 7-1/4 | 184.15 | 9 | 228.60 | 18.49 | 8.39 | 23.87 | 10.83 |
| 7-5/8 | 193.70 | 8.500 | 215.90 | 7-1/2 | 190.50 | 9-1/4 | 234.95 | 27.11 | 12.30 | 34.46 | 15.63 |
| 8-5/8 | 219.08 | 9.625 | 244.48 | 7-3/4 | 196.85 | 10 | 254.00 | 35.79 | 16.23 | 47.77 | 21.67 |
| 9-5/8 | 244.48 | 10.625 | 269.88 | 7-3/4 | 196.85 | 10-1/2 | 266.70 | 39.75 | 18.03 | 56.11 | 25.45 |
| 10-3/4 | 273.05 | 11.750 | 298.45 | 8 | 203.20 | - | - | 45.81 | 20.78 | - | - |
| 11-3/4 | 298.45 | 12.750 | 323.85 | 8 | 203.20 | - | - | 49.91 | 22.64 | - | - |
| 13-3/8 | 339.72 | 14.375 | 365.12 | 8 | 203.20 | - | - | 56.57 | 25.66 | - | - |
| 16 | 406.40 | 17.000 | 431.80 | 9 | 228.60 | - | - | 76.96 | 34.91 | - | - |
| 18-5/8 | 473.08 | 20.000 | 508.00 | 9 | 228.60 | - | - | 119.07 | 54.01 | - | - |
| 20 | 508.00 | 21.000 | 533.40 | 9 | 228.60 | - | - | 95.73 | 43.42 | - | - |
Casing Coupling(BC)
| Size | OD | Length | Weight | ||||
| in | mm | in | mm | in | mm | in | mm |
| 4-1/2 | 114.30 | 5.000 | 127.00 | 8-7/8 | 225.42 | 10.12 | 4.55 |
| 5 | 127.00 | 5.563 | 141.30 | 9-1/8 | 231.78 | 13.00 | 5.85 |
| 5-1/2 | 139.70 | 6.050 | 153.67 | 9-5/8 | 234.95 | 14.15 | 6.36 |
| 6-5/8 | 1168.28 | 7.390 | 17.71 | 10 | 244.48 | 24.49 | 11.01 |
| 7 | 177.80 | 7.656 | 194.46 | 10-3/8 | 254.00 | 23.24 | 10.54 |
| 7-5/8 | 193.68 | 8.500 | 215.90 | 10-5/8 | 263.52 | 34.88 | 15.82 |
| 8-5/8 | 219.08 | 9.626 | 244.48 | 10-5/8 | 269.88 | 45.99 | 20.86 |
| 9-5/8 | 244.48 | 10.625 | 269.88 | 10-5/8 | 269.88 | 51.05 | 23.16 |
| 10-3/4 | 273.05 | 11.750 | 298.45 | 10-5/8 | 269.88 | 56.74 | 25.74 |
| 11-3/4 | 298.45 | 12.750 | 323.85 | 10-5/8 | 269.88 | 61.80 | 28.03 |
| 13-3/8 | 339.72 | 14.375 | 365.12 | 10-5/8 | 269.88 | 70.03 | 31.77 |
| 16 | 406.40 | 17.000 | 431.80 | 10-5/8 | 269.88 | 88.81 | 40.28 |
| 18-5/8 | 473.08 | 20.000 | 508.00 | 10-5/8 | 269.88 | 138.18 | 62.68 |
| 20 | 508.00 | 21.000 | 534.40 | 10-5/8 | 269.88 | 110.45 | 50.10 |
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Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.
How to order?
Please send us your inquiry with detail item description or with Model number.
If there is no packing demand we take it as our regular exported standard packing.
We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
You send us your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
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