Petroleum Steel Pipe-SHANDONG SHENGQIANG IRON AND STEEL CO.,LTD





PRODUCT

Home / Products / Carbon Steel / Carbon Steel Pipe / Petroleum Steel Pipe

Petroleum 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.

Phone : +86 18306413114

Email : olivia@sdsq-steel.com

Wechat : +86 18306413114

Whatsapp : +86 18306413114

Contact us →

Product Description

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 elongationunder load %	Yield strength MPa		Tensile strength min. MPa
Grade	Type	Total elongationunder 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

Product Show

Packaging And Transport

Factory Show

Customer Visits

Inquiry

To learn more about this product, you can submit your requirements here