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Help CenterSpec API 5ct 5b OCTG 2 7/8" EU N80 Oilfield China Henan Manufacturing and Trading Tubing Coupling
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Henan Dongfanglong Machine Manufacture Co.,LTD was founded in 1999 and located at intersection of 106 National Highway and JIntian road,Puyang,Henan,Chian.We have over 15 years experience of producing,
developing and selling oil pipes and their accessories,steel pipe fittings and other down well tools.We can supply the related certifications for you as follow:
- ISO 9001 Quality control certificate
- API-5CT Certificate with the NO.5CT-0837
- API-7 Certificate with the No.7-0872
- API -5DP Certificate with the No.5DP-0135
The company has a fixed assets of over 570 million RMB,and is staffed with over 200 employees,almost hundred sets of accurate CNC lathes,auxiliary equipments and developed other machines and testing
equipments.Our own trademark has been registered and approved since february 2010.
The main products of our factory is as follow: Tubing and casing couplings size from 1.9" to 20" with various
material and types,pup joints, all kinds of tool joints, and other down well tools that designed and developed
by our own such as:High efficient cyclone separator,tubing centralizer, Spiralflow sand setting device and so on.Now our production capability has reached 3000000 piece per year.
We are the regular suppliers of Petrochina and Sinopec. From 2009,our market have expanded abroad out of China.Our products have already been used in USA,Brazil, Venezuela,India,Kazakhatan,Indonesia and so on.
We will hope to cooperate with you by our high quality products and excellent service.
Tubing coupling
1.Size:1.9" 2 3/8" 2 7/8" 3 1/2" 4 1/2"
2.Thread type:Non-upset(NU), external upset(EUE);
3.Grade type:J55 K55 N80-1 N80-Q L80 P110;
4.Standard: API 5CT 5B;
API external-upset tubing coupling Dimensions and masses
Tubing OD (in) |
Coupling OD (in) |
Length (in) |
Weight per coupling/Kg |
Package Quantity (piece) |
Package Weight/Kg |
Teeth number per25.4mm of thread (piece) |
1.9 |
2.188 |
3.750 |
0.84 |
2800 |
2352 |
8 |
2 3/8 |
3.036 |
4.875 |
1.55 |
1444 |
2239 |
8 |
2 7/8 |
3.668 |
5.500 |
2.40 |
792 |
1901 |
8 |
3 1/2 |
4.500 |
5.750 |
4.10 |
448 |
1837 |
8 |
4 |
4.750 |
5.750 |
4.82 |
320 |
1543 |
8 |
4 1/2 |
5.563 |
6.500 |
6.05 |
252 |
1552 |
8 |
API non-upset tubing coupling Dimensions and masses
Tubing OD(in) |
Coupling OD (in-mm) |
Length (in-mm) |
Weight per coupling/Kg |
Package Quantity (piece) |
Package Weight/Kg
|
Teeth number per25.4mm of thread (piece) |
1.9 |
2.188-55.575 |
3.750-95.250 |
0.56 |
2900 |
1624 |
10 |
2 3/8 |
2.875-73.025 |
4.500-114.300 |
1.28 |
1512 |
1936 |
10 |
2 7/8 |
3.500-88.900 |
5.500-139.700 |
2.34 |
800 |
1872 |
10 |
3 1/2 |
4.250-107.950 |
5.625-142.875 |
3.71 |
502 |
1863 |
10 |
4 |
4.726-120.040 |
5.750-146.050 |
4.35 |
382 |
1662 |
10 |
4 1/2 |
5.200-132.080 |
6.500-165.100 |
4.89 |
252 |
1233 |
10 |
| Grade | J55 | K55 | N80-1 | N80-Q | L80-1 | P110 |
| colour | bright green | bright green | red | red with green band | red with brown band | white |
| Grade | J55 | K55 | N80-1 | N80-Q | L80-1 | P110 |
| Yield strength(Mpa) | 379-552 | 379-552 | 552-758 | 552-758 | 552-655 | 758-965 |
| Tensile strength(Mpa) | 517 | 655 | 689 | 689 | 655 | 862 |
Send Inquiry to This Supplier
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