codes & standards

Steel Pipes Dimensions - ANSI Schedule 40

Internal and external diameters, areas, weights, volumes and number of threads for schedule 40 steel pipes

Pipe Size (inches)	Diameter (inches)		Nominal Thickness (inches)	Transverse Areas (sq. inches)			Length of Pipe (per sq. foot of)		Volume (Cubic feet pr. foot)	Weight		Number of Threads per inch of Screw
Pipe Size (inches)	External	Internal	Nominal Thickness (inches)	External	Internal	Steel	External Surface (feet)	Internal Surface (feet)	Volume (Cubic feet pr. foot)	(pounds per foot. lb / ft)	(kg/m)	Number of Threads per inch of Screw
1/8	0.41	0.27	0.07	0.13	0.06	0.07	9.43	14.20	0.0004	0.24	0.36	27
¼	0.54	0.36	0.09	0.23	0.10	0.13	7.07	10.49	0.0007	0.42	0.63	18
3/8	0.68	0.49	0.09	0.36	0.19	0.17	5.66	7.75	0.0013	0.57	0.84	18
½	0.84	0.62	0.11	0.55	0.30	0.25	4.55	6.14	0.0021	0.85	1.26	18
¾	1.05	0.82	0.11	0.87	0.53	0.33	3.64	4.64	0.0037	1.13	1.68	14
1	1.32	1.05	0.13	1.36	0.86	0.49	2.90	3.64	0.0060	1.68	2.50	14
1 ¼	1.66	1.38	0.14	2.16	1.50	0.67	2.30	2.77	0.0104	2.27	3.38	11 ½
1 ½	1.90	1.61	0.15	2.84	2.04	0.80	2.01	2.37	0.0141	2.72	4.04	11 ½
2	2.38	2.07	0.15	4.43	3.36	1.08	1.61	1.85	0.0233	3.65	5.43	11 ½
2 ½	2.88	2.47	0.20	6.49	4.79	1.70	1.33	1.55	0.0333	5.79	8.62	11 ½
3	3.50	3.07	0.22	9.62	7.39	2.23	1.09	1.25	0.0513	7.58	11.27	8
3 ½	4.00	3.55	0.23	12.56	9.89	2.68	0.95	1.08	0.0687	9.11	13.56	8
4	4.50	4.03	0.24	15.90	12.73	3.17	0.85	0.95	0.0884	10.79	16.06	8
5	5.56	5.05	0.26	24.30	20.00	4.30	0.69	0.76	0.1389	14.61	21.74	8
6	6.63	6.07	0.28	34.47	28.89	5.58	0.58	0.63	0.2006	18.97	28.23	8
8	8.63	7.98	0.32	58.42	50.02	8.40	0.44	0.48	0.3552	28.55	42.49	8
10	10.75	10.02	0.37	90.76	78.85	11.90	0.36	0.38	0.5476	40.48	60.24	8
12	12.75	11.94	0.41	127.64	111.90	15.74	0.30	0.32	0.7763	53.60	79.77	8
14	14.00	13.13	0.44	153.94	135.30	18.64	0.27	0.28	0.9354	63.00	93.75	8
16	16.00	15.00	0.50	201.05	176.70	24.35	0.24	0.25	1.2230	78.00	116.08	8
18	18.00	16.88	0.56	254.85	224.00	30.85	0.21	0.23	1.5550	105.00	156.26	8
20	20.00	18.81	0.59	314.15	278.00	36.15	0.19	0.20	1.9260	123.00	183.05	8
24	24.00	22.63	0.69	452.40	402.10	50.30	0.16	0.17	2.7930	171.00	254.48	8