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[China]
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Address: Room2212, B Building, Tiandi Times Square, Weiyang District, Xi'an City, Shaanxi P.R., China
Contact name:Liza
Puyang Zhongshi Group Co., Ltd. |
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API Standard N80 and N80Q Seamless Casing Pipe With Size OD 4 1/2"
To 20"
Descriptions of oil casing pipe:
Casing seamless pipe is mainly used for supporting the wall of the
well during and after the drilling to
ensure the drilling process and the normal operation of the entire well after completion. The oil casing
pipe is the lifeline for maintaining the operation of the oil well.
Features:
1. Alloy steel pipe
2. Hot-rolled seamless pipe
Technical specification:
| Product Name | OCTG casing |
| Technique | Hot Rolled |
| Standard | API 5CT |
| Surface | Varnish |
API 5CT Casing: Material: H40,J55,K55,N80-1,N80-Q,L80-1,L80-9Cr,L80-13Cr,C90,C95,T95,P110,Q125 Outside Diameter: 114.3-508mm Wall Thickness: 5.21-22.22mm Type of thread: STC,LTC,BTC, Length: 6-14m,R1,R2,R3,also can be manufactured by customers’ requirements | |
Mechanical Properties:
| steel grade | type | total elongation under load (%) |
yield strength (Mpa) |
tensile strength (Mpa) min | hardness max | ||
| min | max | HRC | HBW | ||||
| H40 | - | 0.5 | 276 | 552 | 414 | - | - |
| J55 | - | 0.5 | 379 | 552 | 517 | - | - |
| K55 | - | 0.5 | 379 | 552 | 655 | - | - |
| N80 | 1 | 0.5 | 552 | 758 | 689 | - | - |
| N80 | Q | 0.5 | 552 | 758 | 689 | - | - |
| M65 | - | 0.5 | 448 | 586 | 586 | 22 | 235 |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 9 Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 13 Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 |
| P110 | - | 0.6 | 758 | 965 | 862 | - | - |
Length range:
| Length range | Range 1 | Range 2 | Range 3 |
| Tubing | 6.10-7.32m | 8.53-9.75m | 11.58-12.80m |
| Casing | 4.88-7.62m | 7.62-10.36m | 10.36-14.63m |
| Pup joint | 2-20 feet 0.5-6m | ||
