Steel Pipe Dimensions Chart ANSI B36.10 & 36.19

The pipe schedule system includes different schedules, each denoted by a number, such as SCH 5, SCH 10, SCH 40, SCH 80, and so on. These numbers represent the approximate wall thickness of the pipes in relation to the nominal pipe size (NPS).

The higher the schedule number, the thicker the pipe wall.

Steel pipe schedule is commonly used in the United States and Canada to ensure uniformity and compatibility in pipe sizing, particularly for industrial applications.

Our wedge wires screen lateral assembly often use steel pipes, and we say the pipe schedule to descript the pipe thickness.

The following steel pipe dimensions chart is ANSI B36.10 & 36.19 standards for your quick viewing.

Nominal Pipe Size		Outside Diameter (mm)	Nominal Wall Thickness Schedule (mm)
NPS	DN	OD	SCH 5s	SCH 10s	SCH 10	SCH 20	SCH 30	SCH 40s	SCH STD	SCH 40	SCH 60	SCH 80s	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXS
1/8	6	10.3	-	1.24	-	-	-	1.73	1.73	1.73	-	2.41	2.41	2.41	-	-	-	-	-
1/4	8	13.7	-	1.65	-	-	-	2.24	2.24	2.24	-	3.02	3.02	3.02	-	-	-	-	-
3/8	10	17.1	-	1.65	-	-	-	2.31	2.31	2.31	-	3.2	3.2	3.2	-	-	-	-	-
1/2	15	21.3	1.65	2.11	-	-	-	2.77	2.77	2.77	-	3.73	3.73	3.73	-	-	-	4.78	7.47
3/4	20	26.7	1.65	2.11	-	-	-	2.87	2.87	2.87	-	3.91	3.91	3.91	-	-	-	5.56	7.82
1	25	33.4	1.65	2.77	-	-	-	3.38	3.38	3.38	-	4.55	4.55	4.55	-	-	-	6.35	9.09
1-1/4	32	42.2	1.65	2.77	-	-	-	3.56	3.56	3.56	-	4.85	4.85	4.85	-	-	-	6.35	9.7
1-1/2	40	48.3	1.65	2.77	-	-	-	3.68	3.68	3.68	-	5.08	5.08	5.08	-	-	-	7.14	10.15
2	50	60.3	1.65	2.77	-	-	-	3.91	3.91	3.91	-	5.54	5.54	5.54	-	-	-	8.74	11.07
2-1/2	65	73	2.11	3.05	-	-	-	5.16	5.16	5.16	-	7.01	7.01	7.01	-	-	-	9.53	14.02
3	80	88.9	2.11	3.05	-	-	-	5.49	5.49	5.49	-	7.62	7.62	7.62	-	-	-	11.13	15.24
3-1/2	90	101.6	2.11	3.05	-	-	-	5.74	5.74	5.74	-	8.08	8.08	8.08	-	-	-	-	-
4	100	114.3	2.11	3.05	-	-	-	6.02	6.02	6.02	-	8.56	8.56	8.56	-	11.13	-	13.49	17.12
5	125	141.3	2.77	3.40	-	-	-	6.55	6.55	6.55	-	9.53	9.53	9.53	-	12.7	-	15.88	19.05
6	150	168.3	2.77	3.40	-	-	-	7.11	7.11	7.11	-	10.97	10.97	10.97	-	14.27	-	18.26	21.95
8	200	219.08	2.77	3.76	-	6.35	7.04	8.18	8.18	8.18	10.31	12.7	12.7	12.7	15.09	18.26	20.62	23.01	22.23
10	250	273.1	3.96	4.19	-	6.35	7.8	9.27	9.27	9.27	12.7	12.7	12.7	15.09	18.26	21.44	25.4	28.58	25.4
12	300	323.9	3.96	4.57	-	6.35	8.38	9.53	9.530	10.31	14.27	12.7	12.7	17.48	21.44	25.4	28.58	33.32	25.4
14	350	355.6	3.96	4.78	6.35	7.92	9.530	-	9.530	11.13	15.09	-	12.7	19.05	23.83	27.79	31.75	35.71	-
16	400	406.4	4.19	4.78	6.35	7.92	9.530	-	9.530	12.7	16.66	-	12.7	21.44	26.19	30.96	36.53	40.49	-
18	450	457.2	4.19	4.78	6.35	7.92	11.130	-	9.530	14.27	19.05	-	12.7	23.83	29.36	34.93	39.67	45.24	-
20	500	508	4.78	5.54	6.35	9.53	12.700	-	9.530	15.09	20.62	-	12.7	26.19	32.54	38.1	44.45	50.01	-
22	550	559	4.78	5.54	6.35	9.53	12.700	-	9.530	-	22.23	-	12.7	28.58	34.93	41.28	47.63	53.98	-
24	600	610	5.54	6.35	6.35	9.53	14.270	-	9.530	17.48	24.61	-	12.7	30.96	38.89	46.02	52.37	59.54	-
26	650	660	-	-	7.92	12.7		-	9.530	-	-	-	12.7	-	-	-	-	-	-
28	700	711	-	-	7.92	12.7	15.88	-	9.530	-	-	-	12.7	-	-	-	-	-	-
30	750	762	6.35	7.92	7.92	12.7	15.88	-	9.530	-	-	-	12.7	-	-	-	-	-	-
32	800	813	-	-	7.92	12.7	15.88	-	9.530	17.48	-	-	12.7	-	-	-	-	-	-
34	850	884	-	-	7.92	12.7	15.88	-	9.530	17.48	-	-	12.7	-	-	-	-	-	-
36	900	914	-	-	7.92	12.7	15.88	-	9.530	19.05	-	-	12.7	-	-	-	-	-	-
38	950	965	-	-	-	-	-	-	9.530	-	-	-	12.7	-	-	-	-	-	-
40	1000	1016	-	-	-	-	-	9.53	-	12.7	-	-	-	-	-	-	-	-	-
42	1050	1067	-	-	-	12.7	15.88	-	9.530	19.05	-	-	12.7	-	-	-	-	-	-
44	1100	1118	-	-	-	-	-	-	9.530	-	-	-	12.7	-	-	-	-	-	-
46	1150	1168	-	-	-	-	-	-	9.530	-	-	-	12.7	-	-	-	-	-	-
48	1200	1219	-	-	-	-	-	-	9.530	-	-	12.7	-	-	-	-	-	-	-

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