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Seamless Casing Specifications (API 5CT)

Outside Diameter	Nominal Weight	Wall Thickness	Grade and Connection Type*
in.	lb/ft	in.	J55 K55	M65	L80 C95	N80	C90 T95	P110
4-1/2	9.50	0.205	PS	PS	-	-	-	-
	10.50	0.224	PSB	PSB	-	-	-	-
	11.60	0.250	PSLB	PLB	PLB	PLB	PLB	PLB
	13.50	0.290	-	PLB	PLB	PLB	PLB	PLB
	15.10	0.337	-	-	-	-	-	PLB
5	11.50	0.220	PS	PS	-	-	-	-
	13	0.253	PSL	PSLB	-	-	-	-
	15.00	0.296	PSLB	PLB	PSLB	PSLB	PSLB	PSLB
	18.00	0.362	-	PLB	PSLB	PSLB	PSLB	PSLB
	21.40	0.437	-	PLB	PLB	PLB	PLB	PLB
	23.20	0.478	-	-	PLB	PLB	PLB	PLB
	24.10	0.500	-	-	PLB	PLB	PLB	PLB
5-1/2	14.00	0.244	PS	PS	-	-	-	-
	15.50	0.275	PSLB	PSLB	-	-	-	-
	17.00	0.304	PSLB	PLB	PSLB	PSLB	PLB	PSLB
	20.00	0.361	-	PLB	PSLB	PSLB	PLB	PSLB
	23.00	0.415	-	PLB	PSLB	PSLB	PLB	PSLB
6-5/8	20.00	0.288	PSLB	PSLB	-	-	-	-
	24.00	0.352	PSLB	PLB	PSLB	PSLB	PSLB	PSLB
	28.00	0.417	-	PLB	PSLB	PSLB	PSLB	PSLB
	32.00	0.475	-	-	PSLB	PSLB	PSLB	PSLB
7	20.00	0.272	PS	PS	-	-	-	-
	23.00	0.317	PSLB	PLB	PSLB	PSLB	PLB	-
	26.00	0.362	PSLB	PLB	PSLB	PSLB	PLB	PSLB
	29.00	0.408	-	PLB	PSLB	PSLB	PLB	PSLB
	32.00	0.453	-	PLB	PSLB	PSLB	PLB	PSLB
	35.00	0.498	-	-	PSLB	PSLB	PLB	PSLB
	38.00	0.540	-	-	PSLB	PSLB	PLB	PSLB
7-5/8	26.40	0.328	PSLB	PSLB	PLB	PLB	PLB	-
	29.70	0.375	-	PLB	PLB	PLB	PLB	PLB
	33.70	0.430	-	PLB	PLB	PLB	PLB	PLB
	39.00	0.500	-	-	PLB	PLB	PLB	PLB
	42.80	0.562	-	-	PLB	PLB	PLB	PLB
	45.30	0.595	-	-	PLB	PLB	PLB	PLB
	47.10	0.625	-	-	PLB	PLB	PLB	PLB
8-5/8	24.00	0.264	PS	PS	-	-	-	-
	28.00	0.304	-	PS	-	-	-	-
	32.00	0.352	PSLB	PSLB	-	-	-	-
	36.00	0.400	PSLB	PSLB	PLB	PLB	PLB	-
	40.00	0.450	-	PLB	PLB	PLB	PLB	PLB
	44.00	0.500	-	-	PLB	PLB	PLB	PLB
	49.00	0.557	-	-	PLB	PLB	PLB	PLB
9-5/8	36.00	0.352	PSLB	PSLB	-	-	-	-
	40.00	0.395	PSLB	PSLB	PLB	PLB	PLB	-
	43.50	0.435	-	PLB	PLB	PLB	PLB	PLB
	47.00	0.472	-	PLB	PLB	PLB	PLB	PLB
	53.50	0.545	-	-	PLB	PLB	PLB	PLB
	58.40	0.595	-	-	PLB	PLB	PLB	PLB
10-3/4	40.50	0.350	PSB	PSB	PLB	PLB	PLB	PLB
	45.50	0.400	PSB	PSB	-	-	-	-
	51.00	0.450	PSB	PSB	PSB	PSB	PSB	PSB
	55.50	0.495	-	PSB	PSB	PSB	PSB	PSB
	60.70	0.545	-	-	-	-	PSB	PSB
	65.70	0.595	-	-	-	-	PSB	PSB
13-3/8	54.50	0.380	PSB	PSB	-	-	PSB	PSB
	61.00	0.430	PSB	PSB	-	-	-	-
	68.00	0.480	PSB	PSB	PSB	PSB	PSB	PSB
	72.00	0.514	-	-	-	-	PSB	PSB
20	94.00	0.438	SLB	SLB	-	-	-	-
	106.50	0.500	SLB	SLB	-	-	-	-
	133.00	0.635	SLB	-	-	-	-	-

* Premium connections are available on request. P - plain end, S - short round thread, B - butress, L - long round thread.