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API 5CT N80 casing pipe for oil well drilling

Description: BBN steel is a well-known steel manufacturer and service provider in China, API 5CT N80 casing pipe for oil well drilling is our superior product, we are favored by customers with high quality, competitive price and excellent service

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Lead Time:

Quantity(Metric Tons)	1 - 10	10 - 50	>50
Est. Time(days)	5	10	Negotiable

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Product Introduction

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.

API 5CT N80 casing pipe chemical composition:

Grade	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
N80	0.34-0.38	0.20-0.35	1.45-1.70	≤0.020	≤0.015	≤0.15	/	/	/	0.11-0.16

API 5CT N80 casing pipe mechanical properties:

Grade	Type	Total elongation under load %	Yield strength MPa		Tensile strength min. MPa
Grade	Type	Total elongation under load %	min.	max .
N80	1	0.5	552	758	689
N80	Q	0.5	552	758	689

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 Diameter		Wall Thickness	Weight	Threaded	Length
in	mm	kg/m	lb/ft	Threaded	Length
4 1/2″	114.3	14.14-22.47	9.50-11.50	LTC/STC/BTC	R1/R2/R3
5″	127	17.11-35.86	11.50-24.10	LTC/STC/BTC	R1/R2/R3
5 1/2″	139.7	20.83-34.23	14.00-23.00	LTC/STC/BTC	R1/R2/R3
6 5/8″	168.28	29.76-35.72	20.00-24.00	LTC/STC/BTC	R1/R2/R3
7″	177.8	25.30-56.55	17.00-38.00	LTC/STC/BTC	R1/R2/R3
7 5/8″	193.68	35.72-63.69	24.00-42.80	LTC/STC/BTC	R1/R2/R3
8 5/8″	219.08	35.72-72.92	24.00-49.00	LTC/STC/BTC	R1/R2/R3
9 5/8″	244.48	48.07-86.91	32.30-58.40	LTC/STC/BTC	R1/R2/R3
10 3/4″	273.05	48.73-97.77	32.75-65.70	LTC/STC/BTC	R1/R2/R3
11 3/4″	298.45	62.50-89.29	42.00-60.00	LTC/STC/BTC	R1/R2/R3
13 3/8″	339.72	71.43-107.15	48.00-72.00	LTC/STC/BTC	R1/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.

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API 5CT N80 casing pipe for oil well drilling

Product Introduction

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