Tubs API 5CT

API Spec 5CT Tubes are Tubes used as casing or piping for oil and gas wells. They can be supplied in three product specification levels: PSL-1, PSL-2 and PSL-3.

5CT / ISO 11960 specification.

Dimensions of API 5CT Tubes (mm):

• External Dimensions: 6.0mm - 219.0mm

• Wall thickness: 1.0mm - 30mm

• Length: max 12,000mm

Application:

Gas, water and oil transport in oil and natural gas.

The main steel types of 5CT Tube:

API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110.

Chemical Compositions (%) of API 5CT
STEEL GRADE	C≤	Guix≤	Mn≤	P≤	S≤	Cr≤	Ni≤	Ass≤	Mo≤	V≤	Als≤
API 5CT J55	0.34-0.39	0.20-0.35	1.25-1.50	0.020	0.015	0.150	0.200	0.200	-	-	0.020
API 5CT K55	0.34-0.39	0.20-0.35	1.25-1.50	0.020	0.015	0.150	0.200	0.200	-	-	0.020
API 5CT N80	0.34-0.38	0.20-0.35	1.45-1.70	0.020	0.015	0.150	-	-	-	0.11-0.16	0.020
API 5CT L80	0.15-0.22	1,000	0.25-1.00	0.020	0.010	12.0-14.0	0.200	0.200	-	-	0.020
API 5CT J P110	0.26-035	0.17-0.37	0.40-0.70	0.80-1.10	0.020	0.010	0.200	0.200	0.020	0.080	0.15-0.25

API 5CT Mechanical Properties
STEEL GRADE	FLOW LIMIT (MPa)	TENSION STRENGTH (MPa)
API 5CT J55	379-552	≥517
API 5CT K55	≥655	≥517
API 5CT N80	552-758	≥689
API 5CT L80	552-655	≥655
API 5CT J P110	758-965	≥862

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