API 5CT Grade L80 Casing Pipe for petroleum and natural gas plant

API 5CT OCTG Tubing supplier

API specification 5CT is a technical standard for tubes and pipes in a system intended for use in oil wells in petroleum as well as in natural gas industries. Unlike API 5L, the API 5CT Grade L80 Pipes are classified into three product specification levels, i.e. - PSL-1, PSL-2, and PSL-3. Pipes that belong to grade L80 are heat treated after being upset. Per this standard, different grades will vary in their heat treatment processes.

For instance, api 5ct grade l80 type 1 Casing and Tubing must not be tempered at temperatures below 1150°F to avoid becoming brittle. Moreover, grade L80 pipes are not recommended to be cold worked after heat treatment. For an API 5CT Casing tube that has been oil quenched, a modification can be done with regards to increasing the content of carbon. One of the major benefits of using the API 5CT Casing and Tubing for the petroleum industry is because the steel alloy used can withstand corrosion from bi-products such as carbon dioxide in addition to hydrogen sulfide. Hydrogen sulfide causes tremendous stress on pipes, especially if they are welded. However, the use of seamless steel API 5CT GRADE L80 Pipes is much more resilient and can last longer as they aren’t susceptible to cracking. Under this specification, the standard API 5CT L-80 Casing Pipe does not contain sulfur and is a non-corrosive component.

ISO 11960 API 5CT OCTG and Linepipe with hydro test

Table of Content

• Specification format of API 5CT Grade L80 Pipes

• Basic types of API 5CT GR. L80 Steel Pipe

• Composition Standard of API-5CT L80 Casing Pipe

• Carbon Steel API 5CT GR. L80 Pipes Mechanical Analysis

• API 5CT GR.L80 Pipe Dimension Tolerance

• API 5CT L80 Carbon Steel Line Pipes Dimensions

• Inspection Method of API 5CT GR.L80 Pipe

Specification format of API 5CT Grade L80 Pipes

API 5CT GRADE L80 Pipes, Casing and Tubing dimensions and tolerances chart

Specification	API 5CT/ISO 11960
Material	L80, steel grade
Outer Diameter	4 1/2″-20″, (114.3-508mm)
Wall Thickness	1.0mm – 30 mm
Casing Dimensions	114.3 mm (4.5″) to 406.4 mm (16″)
Tubing Dimensions	26.7 mm (1.05″) to 114.3 mm (4.5″)
Length	max 12000mm
Thread type	SC(Short round thread), LC(Long round thread), BC(Buttress thread)
API 5L	API 5L GR.42 / 46 / 52 / 56 / 60 / 65 / 70 / 80

Basic types of API 5CT GR. L80 Steel Pipe

9 5/8 Inch API 5ct n80 L80 seamless steel

API 5ct l80 tubing oilfield steel pipe

API 5ct n80 l80 p110 seamless steel pipe

API 5CT Grade L80 13CR Casing Steel Pipe

API 5ct N80 l80 p110 carbon steel pipe

3/8 inch API 5CT N80 L80 steel Casing pipe

Composition Standard of API-5CT L80 Casing Pipe

Stockist of Jindal API 5CT OCTG Casing Tubing in India, API 5CT Grade L80 Pipes in various sizes

Grade	C≤	Si≤	Mn≤	P≤	S≤	Cr≤	Ni≤	Cu≤	Als≤
API 5CT L80	0.15-0.22	1.00	0.25-1.00	0.020	0.010	12.0-14.0	0.20	0.20	0.020

Carbon Steel API 5CT GR. L80 Pipes Mechanical Analysis

Steel Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)
API 5CT L80	552-655	≥655

API 5CT GR.L80 Pipe Dimension Tolerance

Types of steel tubes	Outer Diameter		Wall Thickness
Cold-rolled tubes	Tube sizes(mm)	Tolerances(mm)	Tolerances(mm)
	＜114.3	±0.79	－12.5％

API 5CT L80 Carbon Steel Line Pipes Dimensions

Wide stock of API 5ct grade l80 type 1 ERW OCTG casing and tubing, Check price list of API 5CT Casing ex Mumbai

Size	Weight	Outside Diameter		Wall Thickness		End Finish
						Grade
		in	mm	in	mm	J55K55	L80	N80	C90T95	P110
4 1/2	9.50	4.500	114.3	0.205	5.21	PS	–	–	–	–
	10.50			0.224	5.69	PSB	–	–	–	–
	11.60			0.250	6.35	PSLB	PLB	PLB	PLB	PLB
	13.50			0.290	7.37	–	PLB	PLB	PLB	PLB
	15.10			0.337	9.56	–	–	–	–	PLB
5	11.50	5.00	127.00	0.220	5.59	PS	–	–	–	–
	13.00			0.253	6.43	PSLB	–	–	–	–
	15.00			0.296	7.52	PSLB	PLB	PLB	PLBE	PLB
	18.00			0.362	9.19	–	PLB	PLB	PLBE	PLB
	21.40			0.437	11.10	–	PLB	PLB	PLB	PLB
	23.20			0.478	12.14	–			PLB
	24.10			0.500	12.70	–			PLB
5 1/2	14.00	5.500	139.7	0.244	6.20	PS	–	–	–	–
	15.50			0.275	6.98	PSLB	–	–	–	–
	17.00			0.304	7.72	PSLB	PLB	PLB	PLBE	PLB
	20.00			0.361	9.17	–	PLB	PLB	PLBE	PLB
	23.00			0.415	10.54	–	PLB	PLB	PLBE	PLB
6 5/8	20.00	6.625	168.28	0.288	7.32	PSLB	–	–	–	–
	24.00			0.352	8.94	PSLB	PLB	PLB	PLBE	PLB
	28.00			0.417	10.59	–	PLB	PLB	PLBE	PLB
	32.00			0.475	12.06	–	PLB	PLB	PLBE	PLB
7	17.00	7.00	177.80	0.231	5.87	–	–	–	–	–
	20.00			0.272	6.91	PS	–	–	–	–
	23.00			0.317	8.05	PSLB	PLB	PLB	PLBE	–
	26.00			0.362	9.19	PSLB	PLB	PLB	PLBE	PLB
	29.00			0.408	10.36	–	PLB	PLB	PLBE	PLB
	32.00			0.453	11.51	–	PLB	PLB	PLBE	PLB
	35.00			0.498	12.65	–	PLB	PLB	PLBE	PLB
	38.00			0.540	13.72	–	PLB	PLB	PLBE	PLB
7 5/8	24.00	7.625	193.68	0.300	7.62	–	–	–	–	–
	26.40			0.328	8.33	PSLB	PLB	PLB	PLBE	PLB
	29.70			0.375	9.52	–	PLB	PLB	PLBE	PLB
	33.70			0.430	10.92	–	PLB	PLB	PLBE	PLB
	39.00			0.500	12.70	–	PLB	PLB	PLBE	PLB
	42.80			0.562	14.27	–	PLB	PLB	PLB	PLB
	45.30			0.595	15.11	–	PLB	PLB	PLB	PLB
	47.10			0.625	15.88	–	PLB	PLB	PLB	PLB
8 5/8	24.00	8.625	219.08	0.264	6.71	PS	–	–	–	–
	28.00			0.304	7.72	–	–	–	–	–
	32.00			0.352	8.94	PSLB	–	–	–	–
	36.00			0.400	10.16	PSLB	PLB	PLB	PLBE	PLB
	40.00			0.450	11.43	–	PLB	PLB	PLBE	PLB
	44.00			0.500	12.70	–	PLB	PLB	PLBE	PLB
	49.00			0.557	14.15	–	PLB	PLB	PLBE	PLB
9 5/8	32.30	9.625	244.48	0.312	7.92	–	–	–	–	–
	36.00			0.352	8.94	PSLB	–	–	–	–
	40.00			0.395	10.03	PSLB	PLB	PLB	PLBE	–
	43.50			0.435	11.05	–	PLB	PLB	PLBE	PLB
	47.00			0.472	11.99	–	PLB	PLB	PLBE	PLB
	53.50			0.545	13.84	–	PLB	PLB	PLBE	PLB
	58.40			0.595	15.11	–	PLB	PLB	PLB	PLB
10 3/4	32.75	10.75	273.05	0.279	7.09	–	–	–	–	–
	40.50			0.350	8.89	PSB	–	–	–	–
	15.50			0.400	10.16	PSB	–	–	–	–
	51.00			0.450	11.43	PSB	PSB	PSB	PSBE	PSB
	55.50			0.495	12.57	–	PSB	PSB	PSBE	PSB
	60.70			0.545	13.84	–	–	–	PSBE	PSB
	65.70			0.595	15.11	–	–	–	PSB	PSB
13 3/8	48.00	13.375	339.73	0.330	8.38	–	–	–	–	–
	54.50			0.380	9.65	PSB	–	–	–	–
	61.00			0.430	10.92	PSB	–	–	–	–
	68.00			0.480	12.19	PSB	PSB	PSB	PSB	PSB
	72.00			0.514	13.06	–	PSB	PSB	PSB	PSB
16	65.00	16	406.40	0.375	9.53	–	–	–	–	–
	75.00			0.438	11.13	PSB	–	–	–	–
	84.00			0.495	12.57	PSB	–	–	–	–
	109.00			0.656	16.66	P	P	P	–	P
18 5/8	87.50	18.625	473.08	0.435	11.05	PSB	–	–	–	–
20	94.00	20	508.00	0.438	11.13	PSLB	–	–	–	–
	106.50			0.500	12.70	PSLB	–	–	–	–
	133.00			0.635	16.13	PSLB	–	–	–	–

Inspection Method of API 5CT GR.L80 Pipe

• Size and surface inspection
• NDT and pressure test and third party certication
• Hydrostatic
• Drifting test
• Physical and chemicail analysis
• Hardness and pressure test
• Electromagnetic
• Magnetic particle
• Ultrasonic