Oil Steel Pipe

API 5CT N80 casing pipe covers N80-1 and N80Q types. N80-1 and N80Q steel have same chemical composition and mechanical attributes, and their difference lies in the heat treatment. N80-1 steel is normalized and tempered, while N80Q steel is quenched and tempered. So N80Q steel has higher collapsing strength and internal pressure strength than N80-1 steel. When API 5CT N80 casing pipe is selected, the designer should clearly show N80-1 or N80Q.

  Product Description

API 5CT N80 casing pipe chemical composition:
GradeCSiMnPSCrNiCuMoV
N800.34-0.380.20-0.351.45-1.70≤0.020≤0.015≤0.15///0.11-0.16

API 5CT N80 casing pipe mechanical properties:

GradeTypeTotal elongationunder load %Yield strength MPaTensile strength min. MPa
min.max .
N8010.5552758689
N80Q0.5552758689

API 5CT N80 casing pipe specification:
Thread type: SC (Short round thread), LC (Long round thread), BC (Buttress thread)
Length: R1 (4.88-7.62m), R2 (7.62-10.36m), R3 (10.36-14.63m)

Outer  DiameterWall ThicknessWeightThreadedLength
inmmkg/mlb/ft
4 1/2″114.314.14-22.479.50-11.50LTC/STC/BTCR1/R2/R3
5″12717.11-35.8611.50-24.10LTC/STC/BTCR1/R2/R3
5 1/2″139.720.83-34.2314.00-23.00LTC/STC/BTCR1/R2/R3
6 5/8″168.2829.76-35.7220.00-24.00LTC/STC/BTCR1/R2/R3
7″177.825.30-56.5517.00-38.00LTC/STC/BTCR1/R2/R3
7 5/8″193.6835.72-63.6924.00-42.80LTC/STC/BTCR1/R2/R3
8 5/8″219.0835.72-72.9224.00-49.00LTC/STC/BTCR1/R2/R3
9 5/8″244.4848.07-86.9132.30-58.40LTC/STC/BTCR1/R2/R3
10 3/4″273.0548.73-97.7732.75-65.70LTC/STC/BTCR1/R2/R3
11 3/4″298.4562.50-89.2942.00-60.00LTC/STC/BTCR1/R2/R3
13 3/8″339.7271.43-107.1548.00-72.00LTC/STC/BTCR1/R2/R3

API 5CT N80 casing pipe has higher mechanical properties than J55 casing pipe and K55 casing pipe. With deeper downhole depth than J55 casing pipe and K55 casing pipe, API 5CT N80 casing pipe can be applied for the exploitation of middle-level oil and gas. API 5CT N80 casing pipe is broadly applied in natural gas as well as coal bed methane extraction, and geothermal wells.

Product Show

Factory Tour

FAQ

Q: What are your company's main products?
A: We are professional in carbon steel/stainless steel/galvanized steel sheets, pipes, coils and bars etc. We can also provide a wide range of steel products.

Q: How long is your delivery time?
A: For stock, we can deliver goods within 1-5 days. For customized sizes, it usually takes 7-20 days.

Q: Do you provide samples ? is it free?
A: We can provide samples for free, but freight will be paid by customers.

Q: Do you have stock for regular specification?
A: We have enough stock and can deliver in short time for these sizes.

Q: How can you guarantee the quality?
A: We can take pictures or videos as your request, or you can entrust a thirty party to inspect.

Q: Can we have a trial order with small quantity?
A: Yes, you can. We welcome any orders, even a sample.

Inquiry

Requiredwrong format
Requiredwrong format
Requiredwrong format
Required

Related Products

  • Boiler Tubes

  • Spiral Welded Pipe

  • Oil Steel Pipe

    • Privacy Policy

    © Baowu (Steel) New Material Industrial Co., Ltd. Rights Reserved