Casing Pipe & Oil Pipe

Steel Grade Dimension End-Finish Standard

Steel Grade	Type	Total Elongation Under Load %	Yield Strength MPa	Tensile Strength MPa >=	Hardness <=		Specified Wall Thickness mm	Allowable Hardness Variation, HRC
Steel Grade	Type	Total Elongation Under Load %	Yield Strength MPa	Tensile Strength MPa >=	HRC	HBW	Specified Wall Thickness mm	Allowable Hardness Variation, HRC
H40	--	4	276-552	414	--	--	--	--
J55	--	0.5	379-552	517	--	--	--	--
K55	--	0.5	379-552	655	--	--	--	--
N80	1	0.5	552-758	689	--	--	--	--
N80	Q	0.5	552-758	689	--	--	--	--
M65	--	0.5	448-586	586	22	235	--	--
L80	1	0.5	552-655	655	23	241	--	--
L80	9Cr	0.5	552-655	655	23	241	--	--
L80	13Cr	0.5	552-655	655	23	241	--	--
C90	1,2	0.5	621-724	689	25.4	255	<=12.70	3.0
C90	1,2	0.5	621-724	689	25.4	255	12.71-19.04	4.0
C90	1,2	0.5	621-724	689	25.4	255	19.05-25.39	5.0
C90	1,2	0.5	621.724	689	25.4	255	>=25.40	6.0
C95	--	0.5	655-758	724	--	--	--	--
T95	1,2	0.5	655-75S	724	25.4	255	<=12.70	3.0
T95	1,2	0.5	655-758	724	25.4	255	12.71-19.94	4.0
T95	1,2	0.5	655-758	724	25.4	255	19.05-25.39	5.0
T95	1,2	0.5	655-758	724	25.4	255	>=25.40	6.0
P110	--	0.5	758-965	862	--	--	--	--
Q125	1-4	0.65	962-1034	931	b	--	<=12.70	3.0
Q125	1-4	0.65	862-1034	931	b	--	12.71-19.04	4.0
Q123	1-4	0.65	862-1034	931	b	--	>=19.05	5.0

ISO / API Casing Pipes

Labels		Outside Diameter D mm	Wall Thickness t mm	Labels		Outside Diameter D mm	Wall Thickness t mm
1 D inch	2 lb/ft	Outside Diameter D mm	Wall Thickness t mm	1 D inch	2 lb/ft	Outside Diameter D mm	Wall Thickness t mm
3-1/2	9.92	88.90	7.34	8-5/8	24.00	219.08	6.71
4	11.35	101.60	7.26	8-5/8	28.00	219.08	7.72
4-1/2	9.50	114.30	5.21	8-5/8	32.00	219.08	8.94
4-1/2	10.50	114.30	5.69	8-5/8	36.00	219.08	10.16
4-1/2	11.60	114.30	6.35	8-5/8	40.00	219.08	11.43
4-1/2	13.50	114.30	7.37	8-5/8	44.00	219.08	12.70
4-1/2	15.10	114.30	8.56	8-5/8	49.00	219.08	14.15
4-1/2	13.05	114.60	7.37	9-5/8	32.30	244.48	7.92
5	11.50	127.00	5.59	9-5/8	36.00	244.48	8.94
5	13.00	127.00	6.43	9-5/8	40.00	244.48	10.03
5	15.00	127.00	7.52	9-5/8	43.50	244.48	11.05
5	18.00	127.00	9.19	9-5/8	47.00	244.48	11.99
5	21.40	127.00	11.10	9-5/8	53.50	244.48	13.84
5	23.20	127.00	12.14	9-5/8	58.40	244.48	15.11
5	24.10	127.00	12.70	9-5/8	59.40	244.48	15.47
5	17.95	127.00	9.19	9-5/8	64.90	244.48	17.07
5-1/2	14.00	139.70	6.20	9-5/8	70.30	244.48	18.64
5-1/2	15.50	139.70	6.98	9-5/8	75.60	244.48	20.24
5-1/2	17.00	139.70	7.72	10-3/4	32.75	273.05	7.09
5-1/2	20.00	139.70	9.17	10-3/4	40.50	273.05	8.89
5-1/2	23.00	139.70	10.54	10-3/4	45.50	273.05	10.16
5-1/2	26.80	139.70	12.70	10-3/4	51.00	273.05	11.43
5-1/2	29.70	139.70	14.27	10-3/4	55.50	273.05	12.57
5-1/2	32.60	139.70	15.88	10-3/4	60.70	273.05	13.84
5-1/2	35.30	139.70	17.45	10-3/4	65.70	273.05	15.11
5-1/2	38.00	139.70	19.05	10-3/4	73.20	273.05	17.07
5-1/2	40.50	139.70	20.62	10-3/4	79.20	273.05	18.64
5-1/2	43.10	139.70	22.22	10-3/4	85.30	273.05	20.24
5-1/2	19.83	139.70	9.17	11-3/4	42.00	298.45	8.46
6-5/8	20.00	168.28	7.32	11-3/4	47.00	298.45	9.53
6-5/8	24.00	168.28	8.94	11-3/4	54.00	298.45	11.05
6-5/8	28.00	168.28	10.59	11-3/4	60.00	298.45	12.42
6-5/8	32.00	168.28	12.06	11-3/4	65.00	298.45	13.56
6-5/8	27.66	168.28	10.59	11-3/4	71.00	298.45	14.78
7	17.00	177.80	5.87	13-3/8	48.00	339.72	8.38
7	29.00	177.80	10.36	13-3/8	54.50	339.72	9.65
7	32.00	177.80	11.51	13-3/8	61.00	339.72	10.92
7	35.00	177.80	12.65	13-3/8	68.00	339.72	12.19
7	38.00	177.80	13.72	13-3/8	72.00	339.72	13.06
7	42.70	177.80	13.98	16	65.00	406.40	9.53
7	46.40	177.80	17.45	16	75.00	406.40	11.13
7	50.10	177.80	19.05	16	84.00	406.40	12.57
7	53.60	177.80	20.62	16	109.00	406.40	16.66
7	57.10	177.80	22.22	18-5/8	87.50	473.08	11.05
7-5/8	24.00	177.80	7.62	20	94.00	508.00	11.13
7-5/8	26.40	193.68	8.33	20	106.50	508.00	12.70
7-5/8	29.70	193.68	9.52	20	133.00	508.00	16.13
7-5/8	33.70	193.68	10.92
7-5/8	39.00	193.68	12.70
7-5/8	42.80	193.68	14.27
7-5/8	45.30	193.68	15.11
7-5/8	47.10	193.68	15.88
7-5/8	51.20	193.68	17.45
7-5/8	55.30	193.68	19.05
7-3/4	46.10	196.85	15.11

ISO / API Oil Pipes

Labels				Outside Diameter D mm	Wall Thickness t mm
1	2
1	NU T&C	EU T&C	IJ
1	2	3	4
1.050	1.14	1.20	--	26.67	2.87
1.050	1.48	1.54	--	26.67	3.91
1.315	1.70	1.80	1.72	33.40	3.38
1.315	2.19	2.24	--	33.40	4.55
1.660	2.09	--	2.10	42.16	3.18
1.660	2.30	2.40	2.33	42.16	3.56
1.660	3.03	3.07	--	42.16	4.85
1.900	2.40	--	2.40	48.26	3.18
1.900	2.75	2.90	2.76	48.26	3.68
1.900	3.65	3.73	--	48.26	5.08
1.900	4.42	--	--	48.26	6.35
1.900	5.15	--	--	48.26	7.62
2.063	3.24	--	3.25	52.40	3.96
2.063	4.50	--	--	52.40	5.72
2-3/8	4.00	--	--	60.32	4.24
2-3/8	4.60	4.70	--	60.32	4.83
2-3/8	5.80	5.95	--	60.32	6.45
2-3/8	6.60	--	--	60.32	7.49
2-3/8	7.35	7.45	--	60.32	8.53
2-7/8	6.40	6.50	--	73.02	5.51
2-7/8	7.80	7.90	--	73.02	7.01
2-7/8	8.60	8.70	--	73.02	7.82
2-7/8	9.35	9.45	--	73.02	8.64
2-7/8	10.50	--	--	73.02	9.96
3-1/2	11.50	--	--	73.02	11.18
3-1/2	7.70	--	--	88.90	5.49
3-1/2	9.20	9.30	--	88.90	6.45
3-1/2	10.20	--	--	88.90	7.34
3-1/2	12.70	12.95	--	88.90	9.52
3-1/2	14.30	--	--	88.90	10.92
3-1/2	15.50	--	--	88.90	12.09
3-1/2	17.00	--	--	88.90	13.46
4	9.50	--	--	101.60	5.74
4	10.70	11.00	--	101.60	6.65
4	13.20	--	--	101.60	8.38
4	16.10	--	--	101.60	10.54
4	18.90	--	--	101.60	12.70
4	22.20	--	--	101.60	15.49
4-1/2	12.60	12.75	--	114.30	6.88
4-1/2	15.20	--	--	114.30	8.56
4-1/2	17.00	--	--	114.30	9.65
4-1/2	18.90	--	--	114.30	10.92
4-1/2	21.50	--	--	114.30	12.70
4-1/2	23.70	--	--	114.30	14.22
4-1/2	26.10	--	--	114.30	16.00

Type of Steel Pipe	Type of End-Finishing	Labels
ISO/API Casing Pipe	Plain end	P
	Short round thread	S
	Long round thread	L
	Buttress thread	B
	Extreme-line	E
ISO/API Oiled Pipe	Plain end	P
	Non-upset threaded and coupled	N
	External threaded and coupled	U
	Integral joint	I

API Round Thread Casing-Coupling - Dimesions, Tolerance, Masses

Label^a 1	Size	Outside Diameter W^b,c mm	Minimum Length mm		Diameter of Recess Q^d mm	Mass (kg)
Label^a 1	Outside Diameter D mm	Outside Diameter W^b,c mm	Short N_L	Long N_L	Diameter of Recess Q^d mm	Sort	Long
4-1/2	114.30	127.00	158.75	177.80	116.68	3.62	4.15
5	127.00	141.30	165.10	196.85	129.38	4.66	5.75
5-1/2	139.70	153.67	171.45	203.20	142.08	5.23	6.42
6-5/8	168.28	187.71	184.15	222.25	170.66	9.12	11.34
7	177.80	194.46	184.15	228.60	180.18	8.39	10.83
7-5/8	193.70	215.90	190.50	234.95	197.64	12.30	15.63
8-5/8	219.08	244.48	196.85	254.00	223.04	16.23	21.67
9-5/8	244.49	269.88	196.85	266.70	248.44	18.03	25.45
10-3/4	273.05	298.45	203.20	--	277.02	20.78	--
11-3/4	298.45	323.85	203.20	--	302.42	22.64	--
13-3/8	339.72	365.12	203.20	--	343.69	25.66	--
16	406.40	431.80	228.60	--	411.96	34.91	--
18-5/8	473.08	508.00	228.60	--	478.63	54.01	--
20	508.00	533.40	228.60	292.10	513.56	43.42	57.04

API Buttress Casing-Coupling - Dimesions, Tolerance, Masses

Label^a 1	Size	Outside Diameter		Minimum Length N_L mm	Diameter of Counterbore Q mm	Mass (kg)
Label^a 1	Outside Diameter D mm	Regular W^b,c mm	Special Clearance W_c mm	Minimum Length N_L mm	Diameter of Counterbore Q mm	Regular	Special Clearance
4-1/2	114.30	127.00	123.82	225.42	117.86	4.55	3.18
5	127.00	141.30	136.52	231.78	130.56	5.85	4.00
5-1/2	139.70	153.67	149.22	234.95	143.26	6.36	4.47
6-5/8	168.28	187.71	177.80	244.48	171.83	11.01	5.65
7	177.80	194.46	187.32	254.00	181.36	10.54	6.28
7-5/8	193.70	215.90	206.38	263.52	197.23	15.82	9.29
8-5/8	219.08	244.48	231.78	269.88	222.63	20.86	10.80
9-5/8	244.49	269.88	257.18	269.88	248.03	23.16	12.02
10-3/4	273.05	298.45	285.75	269.88	276.61	25.74	13.39
11-3/4	298.45	323.85	--	269.88	302.01	28.03	--
13-3/8	339.72	365.12	--	269.88	343.28	31.77	--
16	406.40	431.80	--	269.88	410.31	40.28	--
18-5/8	473.08	508.00	--	269.88	476.99	62.68	--
20	508.00	533.40	--	269.88	511.91	50.10	--

API Non-upset Tubing Coupling - Dimesions, Tolerance, Masses

Label^a 1	Size	Outside Diameter W^b mm	Minimum Length N_L mm	Diameter of Recess Q mm	Maximum Bearing Face Diameter Special Bevel Bf mm	Mass (kg)
Label^a 1	Outside Diameter D mm	Outside Diameter W^b mm	Minimum Length N_L mm	Diameter of Recess Q mm	Maximum Bearing Face Diameter Special Bevel Bf mm	Mass (kg)
1.050	26.67	33.35	80.96	28.27	30.00	0.23
1.315	33.40	42.16	82.55	35.00	37.80	0.38
1.660	42.16	52.17	88.90	43.76	47.17	0.59

1.900	48.26	55.88	95.25	49.86	52.07	0.56
2-3/8	60.32	73.02	107.95	61.93	66.68	1.28
2-7/8	73.02	88.90	130.18	74.63	80.98	2.34

3-1/2	88.90	107.95	142.88	90.50	98.42	3.71
4	101.60	120.65	146.05	103.20	111.12	4.35
4-1/2	114.30	132.08	155.58	115.90	123.19	4.89

API External-upset Tubing Coupling - Dimesions, Tolerance, Masses

Label^a 1	Size	Outside Diameter		Min. Length N_L mm	Dia. of Recess Q mm	Maximum Bearing Face Diameter Bf		Mass (kg)
Label^a 1	Outside Dia. D mm	Regular & Special Bevel W^b mm	Special Clearance W_c mm	Min. Length N_L mm	Dia. of Recess Q mm	Special Bevel mm	Special Clearance mm	Regular	Special Clearance
1.050	26.67	42.16	--	82.55	35.00	37.80	--	0.38	--
1.315	33.40	48.26	--	88.90	38.89	42.77	--	0.57	--
1.660	42.16	55.88	--	95.25	47.63	50.95	--	0.68	--

1.900	48.26	63.50	--	98.42	54.76	58.34	--	0.84	--
2-3/8	60.32	77.80	73.91	123.82	67.46	71.83	69.90	1.55	1.07
2-7/8	73.02	93.17	87.88	133.35	80.16	85.88	83.24	2.40	1.55

3-1/2	88.90	114.30	106.17	146.05	96.85	104.78	100.71	4.10	2.38
4	101.60	127.00	--	152.40	109.55	117.48	--	4.82	--
4-1/2	114.30	141.30	--	158.75	122.25	130.96	--	6.05	--