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| Categories | OCTG-coupling for casing&tubing | 
|---|---|
| Place of Origin: | China | 
| Brand Name: | Oilfield | 
| Certification: | API 5CT | 
| Model Number: | 1.9” to 20” | 
| Secondary Or Not: | Non-secondary | 
| Application: | Oil Pipe | 
| Technique: | Hot Rolled | 
| Special Pipe: | API Pipe | 
| Alloy Or Not: | Is Alloy | 
| MOQ: | 1 | 
| Price: | 1~300 dollar | 
| Packaging Details: | Pallet packing | 
| Delivery Time: | 20days | 
| Payment Terms: | T/T & D/P & L/C | 
| Supply Ability: | 2800000 pcs | 
| Surface Treatment: | copper or phosphate | 
Std Ref.: API 5CT 5B ISO9001, 2008
Grade: J55,K55, N80-1,N80-Q,L80,C90, T95,P110 ,Q125
Size: tubing 1.9"to4-1/2", casing 4-1/2"to 20"
| Descriptions and size | Type of Thread | O.D*L(mm) | Weight(kg) | |
| API 5CT Round Threads Casing coupling | 4-1/2" | STC | 127.00*158.75 | 3.62 | 
| 5" | STC | 141.30*165.10 | 4.66 | |
| 5-1/2" | STC | 153.67*171.45 | 5.23 | |
| 6-5/8" | STC | 187.71*184.15 | 9.12 | |
| 7" | STC | 194.46*184.15 | 8.39 | |
| 7-5/8" | STC | 215.90*190.50 | 12.30 | |
| 8-5/8" | STC | 244.48*196.85 | 16.23 | |
| 9-5/8" | STC | 269.88*196.85 | 18.03 | |
| 10-3/4" | STC | 298.45*203.20 | 20.78 | |
| 11-3/4" | STC | 323.85*203.20 | 22.64 | |
| 13-3/8" | STC | 365.12*203.20 | 25.66 | |
| 16" | STC | 431.80*228.60 | 34.91 | |
| 18-5/8" | STC | 508.00*228.60 | 54.01 | |
| 20" | STC | 533.40*228.60 | 43.42 | |
| 1.Grade:J55, K55, N80-1, N80-Q, L80, C95, P110 | ||||
| 2.We also supply other thread products by customer's request | ||||
3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8"
4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).
5.Surface treatment: Whole phosphating, or inside phosphating and outside coating
6.Packing: By carton, wooden case, wooden pallet, or by requirements of customers
Otherwise, Our company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints, adapter couplings, stabilizers, anchors of oil pumps and revolving sand gravitated device of well, etc. We always do business based on the principle of equality and mutual benefit, we provide the high quality and competitive price products.
If you are interested in anyone of them please contact us as soon as possible.
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