Reference · 24 trade sizes · 335 schedules

Pipe schedule chart

Outside diameter, wall thickness, inside diameter and weight per foot for every published schedule, per ASME B36.10M (welded and seamless wrought steel pipe) (carbon and alloy steel) and ASME B36.19M (stainless steel pipe) (stainless). Pick a size and schedule for the full page.

Trade size is not a diameter

NPS 2 pipe measures 2.375 inches across the outside, and it measures 2.375 inches in every schedule there is. The schedule number sets the wall, so a heavier schedule keeps the same outside diameter and takes the thickness out of the bore. That is why a schedule 80 fitting slips over schedule 40 pipe of the same size, and why the inside diameter is the number you need for flow and the outside diameter is the number you need for fit.

What this table covers, and where it stops

This table runs from NPS 1/8 to NPS 24 and stops there. ASME B36.10M itself continues to NPS 80; those larger sizes are not carried here, so a size above NPS 24 is missing rather than undefined.

Every figure below was read out of at least two independent published tables before it was printed. Where the tables disagreed the row says so instead of quietly picking a side. 14 cells were carried by only one of the sources; they are listed at the foot of this page rather than filled in.

DN 6 · OD 0.405" (10.29 mm, designated 10.3 mm)

NPS 1/8 pipe

Published schedules for NPS 1/8 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 10	0.049	1.24	0.307	0.19
Schedule 30	0.057	1.45	0.291	0.21
Schedule 40 · STD	0.068	1.73	0.269	0.24
Schedule 80 · XS	0.095	2.41	0.215	0.31
Standard wall (STD)	0.068	1.73	0.269	0.24
Extra strong (XS)	0.095	2.41	0.215	0.31
Schedule 10S	0.049	1.24	0.307	not published
Schedule 40S · STD	0.068	1.73	0.269	not published
Schedule 80S · XS	0.095	2.41	0.215	not published

DN 8 · OD 0.540" (13.72 mm, designated 13.7 mm)

NPS 1/4 pipe

Published schedules for NPS 1/4 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 10	0.065	1.65	0.410	0.33
Schedule 30	0.073	1.85	0.394	0.36
Schedule 40 · STD	0.088	2.24	0.364	0.42
Schedule 80 · XS	0.119	3.02	0.302	0.54
Standard wall (STD)	0.088	2.24	0.364	0.42
Extra strong (XS)	0.119	3.02	0.302	0.54
Schedule 10S	0.065	1.65	0.410	not published
Schedule 40S · STD	0.088	2.24	0.364	not published
Schedule 80S · XS	0.119	3.02	0.302	not published

DN 10 · OD 0.675" (17.14 mm, designated 17.1 mm)

NPS 3/8 pipe

Published schedules for NPS 3/8 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 10	0.065	1.65	0.545	0.42
Schedule 30	0.073	1.85	0.529	0.47
Schedule 40 · STD	0.091	2.31	0.493	0.57
Schedule 80 · XS	0.126	3.20	0.423	0.74
Standard wall (STD)	0.091	2.31	0.493	0.57
Extra strong (XS)	0.126	3.20	0.423	0.74
Schedule 10S	0.065	1.65	0.545	not published
Schedule 40S · STD	0.091	2.31	0.493	not published
Schedule 80S · XS	0.126	3.20	0.423	not published

DN 15 · OD 0.840" (21.34 mm, designated 21.3 mm)

NPS 1/2 pipe

Published schedules for NPS 1/2 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	0.710	0.54
Schedule 10	0.083	2.11	0.674	0.67
Schedule 30	0.095	2.41	0.650	0.76
Schedule 40 · STD	0.109	2.77	0.622	0.85
Schedule 80 · XS	0.147	3.73	0.546	1.09
Schedule 160	0.188	4.78	0.464	1.31
Standard wall (STD)	0.109	2.77	0.622	0.85
Extra strong (XS)	0.147	3.73	0.546	1.09
Double extra strong (XXS)	0.294	7.47	0.252	1.71
Schedule 5S	0.065	1.65	0.710	not published
Schedule 10S	0.083	2.11	0.674	not published
Schedule 40S · STD	0.109	2.77	0.622	not published
Schedule 80S · XS	0.147	3.73	0.546	not published

DN 20 · OD 1.050" (26.67 mm, designated 26.7 mm)

NPS 3/4 pipe

Published schedules for NPS 3/4 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	0.920	0.68
Schedule 10	0.083	2.11	0.884	0.86
Schedule 30	0.095	2.41	0.860	0.97
Schedule 40 · STD	0.113	2.87	0.824	1.13
Schedule 80 · XS	0.154	3.91	0.742	1.48
Schedule 160	0.219	5.56	0.612	1.95
Standard wall (STD)	0.113	2.87	0.824	1.13
Extra strong (XS)	0.154	3.91	0.742	1.48
Double extra strong (XXS)	0.308	7.82	0.434	2.44
Schedule 5S	0.065	1.65	0.920	not published
Schedule 10S	0.083	2.11	0.884	not published
Schedule 40S · STD	0.113	2.87	0.824	not published
Schedule 80S · XS	0.154	3.91	0.742	not published

DN 25 · OD 1.315" (33.40 mm)

NPS 1 pipe

Published schedules for NPS 1 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	1.185	0.87
Schedule 10	0.109	2.77	1.097	1.41
Schedule 30	0.114	2.90	1.087	1.46
Schedule 40 · STD	0.133	3.38	1.049	1.68
Schedule 80 · XS	0.179	4.55	0.957	2.17
Schedule 160	0.250	6.35	0.815	2.85
Standard wall (STD)	0.133	3.38	1.049	1.68
Extra strong (XS)	0.179	4.55	0.957	2.17
Double extra strong (XXS)	0.358	9.09	0.599	3.66
Schedule 5S	0.065	1.65	1.185	not published
Schedule 10S	0.109	2.77	1.097	not published
Schedule 40S · STD	0.133	3.38	1.049	not published
Schedule 80S · XS	0.179	4.55	0.957	not published

DN 32 · OD 1.660" (42.16 mm, designated 42.2 mm)

NPS 1-1/4 pipe

Published schedules for NPS 1-1/4 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	1.530	1.11
Schedule 10	0.109	2.77	1.442	1.81
Schedule 30	0.117	2.97	1.426	1.93
Schedule 40 · STD	0.140	3.56	1.380	2.27
Schedule 80 · XS	0.191	4.85	1.278	3
Schedule 160	0.250	6.35	1.160	3.77
Standard wall (STD)	0.140	3.56	1.380	2.27
Extra strong (XS)	0.191	4.85	1.278	3
Double extra strong (XXS)	0.382	9.70	0.896	5.22
Schedule 5S	0.065	1.65	1.530	not published
Schedule 10S	0.109	2.77	1.442	not published
Schedule 40S · STD	0.140	3.56	1.380	not published
Schedule 80S · XS	0.191	4.85	1.278	not published

DN 40 · OD 1.900" (48.26 mm, designated 48.3 mm)

NPS 1-1/2 pipe

Published schedules for NPS 1-1/2 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	1.770	1.28
Schedule 10	0.109	2.77	1.682	2.09
Schedule 30	0.125	3.18	1.650	2.37
Schedule 40 · STD	0.145	3.68	1.610	2.72
Schedule 80 · XS	0.200	5.08	1.500	3.63
Schedule 160	0.281	7.14	1.338	4.86
Standard wall (STD)	0.145	3.68	1.610	2.72
Extra strong (XS)	0.200	5.08	1.500	3.63
Double extra strong (XXS)	0.400	10.15	1.100	6.41
Schedule 5S	0.065	1.65	1.770	not published
Schedule 10S	0.109	2.77	1.682	not published
Schedule 40S · STD	0.145	3.68	1.610	not published
Schedule 80S · XS	0.200	5.08	1.500	not published

DN 50 · OD 2.375" (60.32 mm, designated 60.3 mm)

NPS 2 pipe

Published schedules for NPS 2 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.065	1.65	2.245	1.61
Schedule 10	0.109	2.77	2.157	2.64
Schedule 30	0.125	3.18	2.125	3.01
Schedule 40 · STD	0.154	3.91	2.067	3.66
Schedule 80 · XS	0.218	5.54	1.939	5.03
Schedule 160	0.344	8.74	1.687	7.47
Standard wall (STD)	0.154	3.91	2.067	3.66
Extra strong (XS)	0.218	5.54	1.939	5.03
Double extra strong (XXS)	0.436	11.07	1.503	9.03
Schedule 5S	0.065	1.65	2.245	not published
Schedule 10S	0.109	2.77	2.157	not published
Schedule 40S · STD	0.154	3.91	2.067	not published
Schedule 80S · XS	0.218	5.54	1.939	not published

DN 65 · OD 2.875" (73.02 mm, designated 73 mm)

NPS 2-1/2 pipe

Published schedules for NPS 2-1/2 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.083	2.11	2.709	2.48
Schedule 10	0.120	3.05	2.635	3.53
Schedule 30	0.188	4.78	2.499	5.4
Schedule 40 · STD	0.203	5.16	2.469	5.8
Schedule 80 · XS	0.276	7.01	2.323	7.67
Schedule 160	0.375	9.53	2.125	10.02
Standard wall (STD)	0.203	5.16	2.469	5.8
Extra strong (XS)	0.276	7.01	2.323	7.67
Double extra strong (XXS)	0.552	14.02	1.771	13.71
Schedule 5S	0.083	2.11	2.709	not published
Schedule 10S	0.120	3.05	2.635	not published
Schedule 40S · STD	0.203	5.16	2.469	not published
Schedule 80S · XS	0.276	7.01	2.323	not published

DN 80 · OD 3.500" (88.90 mm)

NPS 3 pipe

Published schedules for NPS 3 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.083	2.11	3.334	3.03
Schedule 10	0.120	3.05	3.260	4.34
Schedule 30	0.188	4.78	3.124	6.66
Schedule 40 · STD	0.216	5.49	3.068	7.58
Schedule 80 · XS	0.300	7.62	2.900	10.26
Schedule 160	0.438	11.13	2.624	14.34
Standard wall (STD)	0.216	5.49	3.068	7.58
Extra strong (XS)	0.300	7.62	2.900	10.26
Double extra strong (XXS)	0.600	15.24	2.300	18.6
Schedule 5S	0.083	2.11	3.334	not published
Schedule 10S	0.120	3.05	3.260	not published
Schedule 40S · STD	0.216	5.49	3.068	not published
Schedule 80S · XS	0.300	7.62	2.900	not published

DN 90 · OD 4.000" (101.60 mm)

NPS 3-1/2 pipe

Published schedules for NPS 3-1/2 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.083	2.11	3.834	3.48
Schedule 10	0.120	3.05	3.760	4.98
Schedule 30	0.188	4.78	3.624	7.66
Schedule 40 · STD	0.226	5.74	3.548	9.12
Schedule 80 · XS	0.318	8.08	3.364	12.52
Standard wall (STD)	0.226	5.74	3.548	9.12
Extra strong (XS)	0.318	8.08	3.364	12.52
Schedule 5S	0.083	2.11	3.834	not published
Schedule 10S	0.120	3.05	3.760	not published
Schedule 40S · STD	0.226	5.74	3.548	not published
Schedule 80S · XS	0.318	8.08	3.364	not published

DN 100 · OD 4.500" (114.30 mm)

NPS 4 pipe

Published schedules for NPS 4 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.083	2.11	4.334	3.92
Schedule 10	0.120	3.05	4.260	5.62
Schedule 30	0.188	4.78	4.124	8.67
Schedule 40 · STD	0.237	6.02	4.026	10.8
Schedule 80 · XS	0.337	8.56	3.826	14.98
Schedule 120	0.438	11.13	3.624	19.02
Schedule 160	0.531	13.49	3.438	22.53
Standard wall (STD)	0.237	6.02	4.026	10.8
Extra strong (XS)	0.337	8.56	3.826	14.98
Double extra strong (XXS)	0.674	17.12	3.152	27.57
Schedule 5S	0.083	2.11	4.334	not published
Schedule 10S	0.120	3.05	4.260	not published
Schedule 40S · STD	0.237	6.02	4.026	not published
Schedule 80S · XS	0.337	8.56	3.826	not published

DN 125 · OD 5.563" (141.30 mm)

NPS 5 pipe

Published schedules for NPS 5 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.109	2.77	5.345	6.36
Schedule 10	0.134	3.40	5.295	7.78
Schedule 40 · STD	0.258	6.55	5.047	14.63
Schedule 80 · XS	0.375	9.53	4.813	20.8
Schedule 120	0.500	12.70	4.563	27.06
Schedule 160	0.625	15.88	4.313	32.99
Standard wall (STD)	0.258	6.55	5.047	14.63
Extra strong (XS)	0.375	9.53	4.813	20.8
Double extra strong (XXS)	0.750	19.05	4.063	38.59
Schedule 5S	0.109	2.77	5.345	not published
Schedule 10S	0.134	3.40	5.295	not published
Schedule 40S · STD	0.258	6.55	5.047	not published
Schedule 80S · XS	0.375	9.53	4.813	not published

DN 150 · OD 6.625" (168.27 mm, designated 168.3 mm)

NPS 6 pipe

Published schedules for NPS 6 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.109	2.77	6.407	7.59
Schedule 10	0.134	3.40	6.357	9.3
Schedule 40 · STD	0.280	7.11	6.065	18.99
Schedule 80 · XS	0.432	10.97	5.761	28.6
Schedule 120	0.562	14.27	5.501	36.43
Schedule 160	0.719	18.26	5.187	45.39
Standard wall (STD)	0.280	7.11	6.065	18.99
Extra strong (XS)	0.432	10.97	5.761	28.6
Double extra strong (XXS)	0.864	21.95	4.897	53.21
Schedule 5S	0.109	2.77	6.407	not published
Schedule 10S	0.134	3.40	6.357	not published
Schedule 40S · STD	0.280	7.11	6.065	not published
Schedule 80S · XS	0.432	10.97	5.761	not published

DN 200 · OD 8.625" (219.07 mm, designated 219.1 mm)

NPS 8 pipe

Published schedules for NPS 8 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.109	2.77	8.407	9.92
Schedule 10	0.148	3.76	8.329	13.41
Schedule 20	0.250	6.35	8.125	22.38
Schedule 30	0.277	7.04	8.071	24.72
Schedule 40 · STD	0.322	8.18	7.981	28.58
Schedule 60	0.406	10.31	7.813	35.67
Schedule 80 · XS	0.500	12.70	7.625	43.43
Schedule 100	0.594	15.09	7.437	51
Schedule 120	0.719	18.26	7.187	60.77
Schedule 140	0.812	20.62	7.001	67.82
Schedule 160	0.906	23.01	6.813	74.76
Standard wall (STD)	0.322	8.18	7.981	28.58
Extra strong (XS)	0.500	12.70	7.625	43.43
Double extra strong (XXS)	0.875	22.23	6.875	72.49
Schedule 5S	0.109	2.77	8.407	not published
Schedule 10S	0.148	3.76	8.329	not published
Schedule 40S · STD	0.322	8.18	7.981	not published
Schedule 80S · XS	0.500	12.70	7.625	not published

DN 250 · OD 10.750" (273.05 mm, designated 273 mm)

NPS 10 pipe

Published schedules for NPS 10 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.134	3.40	10.482	15.21
Schedule 10	0.165	4.19	10.420	18.67
Schedule 20	0.250	6.35	10.250	28.06
Schedule 30	0.307	7.80	10.136	34.27
Schedule 40 · STD	0.365	9.27	10.020	40.52
Schedule 60 · XS	0.500	12.70	9.750	54.79
Schedule 80	0.594	15.09	9.562	64.49
Schedule 100	0.719	18.26	9.312	77.1
Schedule 120	0.844	21.44	9.062	89.38
Schedule 140 · XXS	1.000	25.40	8.750	104.23
Schedule 160	1.125	28.58	8.500	115.75
Standard wall (STD)	0.365	9.27	10.020	40.52
Extra strong (XS)	0.500	12.70	9.750	54.79
Double extra strong (XXS)	1.000	25.40	8.750	104.23
Schedule 5S	0.134	3.40	10.482	not published
Schedule 10S	0.165	4.19	10.420	not published
Schedule 40S · STD	0.365	9.27	10.020	not published
Schedule 80S · XS	0.500	12.70	9.750	not published

DN 300 · OD 12.750" (323.85 mm, designated 323.8 mm)

NPS 12 pipe

Published schedules for NPS 12 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.156	3.96	12.438	21
Schedule 10	0.180	4.57	12.390	24.19
Schedule 20	0.250	6.35	12.250	33.41
Schedule 30	0.330	8.38	12.090	43.81
Schedule 40	0.406	10.31	11.938	53.57
Schedule 60	0.562	14.27	11.626	73.22
Schedule 80	0.688	17.48	11.374	88.71
Schedule 100	0.844	21.44	11.062	107.42
Schedule 120 · XXS	1.000	25.40	10.750	125.61
Schedule 140	1.125	28.58	10.500	139.81
Schedule 160	1.312	33.32	10.126	160.42
Standard wall (STD)	0.375	9.53	12.000	49.61
Extra strong (XS)	0.500	12.70	11.750	65.48
Double extra strong (XXS)	1.000	25.40	10.750	125.61
Schedule 5S	0.156	3.96	12.438	not published
Schedule 10S	0.180	4.57	12.390	not published
Schedule 40S · STD	0.375	9.53	12.000	not published
Schedule 80S · XS	0.500	12.70	11.750	not published

DN 350 · OD 14.000" (355.60 mm)

NPS 14 pipe

Published schedules for NPS 14 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.156	3.96	13.688	23.09
Schedule 10	0.250	6.35	13.500	36.75
Schedule 20	0.312	7.92	13.376	45.65
Schedule 30 · STD	0.375	9.53	13.250	54.62
Schedule 40	0.438	11.13	13.124	63.5
Schedule 60	0.594	15.09	12.812	85.13
Schedule 80	0.750	19.05	12.500	106.23
Schedule 100	0.938	23.83	12.124	130.98
Schedule 120	1.094	27.79	11.812	150.93
Schedule 140	1.250	31.75	11.500	170.37
Schedule 160	1.406	35.71	11.188	189.29
Standard wall (STD)	0.375	9.53	13.250	54.62
Extra strong (XS)	0.500	12.70	13.000	72.09
Schedule 5S	0.156	3.96	13.688	not published
Schedule 10S	0.188	4.78	13.624	not published
Schedule 40S · STD	0.375	9.53	13.250	not published
Schedule 80S · XS	0.500	12.70	13.000	not published

DN 400 · OD 16.000" (406.40 mm)

NPS 16 pipe

Published schedules for NPS 16 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.165	4.19	15.670	27.93
Schedule 10	0.250	6.35	15.500	42.09
Schedule 20	0.312	7.92	15.376	52.32
Schedule 30 · STD	0.375	9.53	15.250	62.64
Schedule 40 · XS	0.500	12.70	15.000	82.85
Schedule 60	0.656	16.66	14.688	107.6
Schedule 80	0.844	21.44	14.312	136.74
Schedule 100	1.031	26.19	13.938	164.98
Schedule 120	1.219	30.96	13.562	192.61
Schedule 140	1.438	36.53	13.124	223.85
Schedule 160	1.594	40.49	12.812	245.48
Standard wall (STD)	0.375	9.53	15.250	62.64
Extra strong (XS)	0.500	12.70	15.000	82.85
Schedule 5S	0.165	4.19	15.670	not published
Schedule 10S	0.188	4.78	15.624	not published
Schedule 40S · STD	0.375	9.53	15.250	not published
Schedule 80S · XS	0.500	12.70	15.000	not published

DN 450 · OD 18.000" (457.20 mm, designated 457 mm)

NPS 18 pipe

Published schedules for NPS 18 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.165	4.19	17.670	31.46
Schedule 10	0.250	6.35	17.500	47.44
Schedule 20	0.312	7.92	17.376	58.94
Schedule 30	0.438	11.13	17.124	82.23
Schedule 40	0.562	14.27	16.876	104.67
Schedule 60	0.750	19.05	16.500	138.3
Schedule 80	0.938	23.83	16.124	171.08
Schedule 100	1.156	29.36	15.688	208.15
Schedule 120	1.375	34.93	15.250	244.37
Schedule 140	1.562	39.67	14.876	274.48
Schedule 160	1.781	45.24	14.438	308.79
Standard wall (STD)	0.375	9.53	17.250	70.65
Extra strong (XS)	0.500	12.70	17.000	93.54
Schedule 5S	0.165	4.19	17.670	not published
Schedule 10S	0.188	4.78	17.624	not published
Schedule 40S · STD	0.375	9.53	17.250	not published
Schedule 80S · XS	0.500	12.70	17.000	not published

DN 500 · OD 20.000" (508.00 mm)

NPS 20 pipe

Published schedules for NPS 20 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.188	4.78	19.624	39.82
Schedule 10	0.250	6.35	19.500	52.7
Schedule 20 · STD	0.375	9.53	19.250	78.67
Schedule 30 · XS	0.500	12.70	19.000	104.23
Schedule 40	0.594	15.09	18.812	123.23
Schedule 60	0.812	20.62	18.376	166.56
Schedule 80	1.031	26.19	17.938	209.06
Schedule 100	1.281	32.54	17.438	256.34
Schedule 120	1.500	38.10	17.000	296.65
Schedule 140	1.750	44.45	16.500	341.41
Schedule 160	1.969	50.01	16.062	379.53
Standard wall (STD)	0.375	9.53	19.250	78.67
Extra strong (XS)	0.500	12.70	19.000	104.23
Schedule 5S	0.188	4.78	19.624	not published
Schedule 10S	0.218	5.54	19.564	not published
Schedule 40S · STD	0.375	9.53	19.250	not published
Schedule 80S · XS	0.500	12.70	19.000	not published

DN 550 · OD 22.000" (558.80 mm, designated 559 mm)

NPS 22 pipe

Published schedules for NPS 22 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.188	4.78	21.624	43.84
Schedule 10	0.250	6.35	21.500	58.13
Schedule 20 · STD	0.375	9.53	21.250	86.69
Schedule 30 · XS	0.500	12.70	21.000	114.92
Schedule 60	0.875	22.23	20.250	197.6
Schedule 80	1.125	28.58	19.750	251.05
Schedule 100	1.375	34.93	19.250	303.16
Schedule 120	1.625	41.28	18.750	353.94
Schedule 140	1.875	47.63	18.250	403.38
Schedule 160	2.125	53.98	17.750	451.49
Standard wall (STD)	0.375	9.53	21.250	86.69
Extra strong (XS)	0.500	12.70	21.000	114.92
Schedule 5S	0.188	4.78	21.624	not published
Schedule 10S	0.218	5.54	21.564	not published

DN 600 · OD 24.000" (609.60 mm, designated 610 mm)

NPS 24 pipe

Published schedules for NPS 24 pipe, with wall thickness, inside diameter and weight.
Schedule	Wall (in)	Wall (mm)	ID (in)	Weight (lb/ft)
Schedule 5	0.218	5.54	23.564	55.42
Schedule 10	0.250	6.35	23.500	63.47
Schedule 20 · STD	0.375	9.53	23.250	94.71
Schedule 30	0.562	14.27	22.876	140.81
Schedule 40	0.688	17.48	22.624	171.45
Schedule 60	0.969	24.61	22.062	238.57
Schedule 80	1.219	30.96	21.562	296.86
Schedule 100	1.531	38.89	20.938	367.74
Schedule 120	1.812	46.02	20.376	429.79
Schedule 140	2.062	52.37	19.876	483.57
Schedule 160	2.344	59.54	19.312	542.64
Standard wall (STD)	0.375	9.53	23.250	94.71
Extra strong (XS)	0.500	12.70	23.000	125.61
Schedule 5S	0.218	5.54	23.564	not published
Schedule 10S	0.250	6.35	23.500	not published
Schedule 40S · STD	0.375	9.53	23.250	not published
Schedule 80S · XS	0.500	12.70	23.000	not published

Cells left empty on purpose

These 14 size-and-schedule combinations appeared in exactly one of the five published tables cross-checked for this section. One table is not enough to print a number here, so they are named rather than filled in. If you need one of them, go to the standard itself.

Size and schedule combinations carried by only one source, left unpublished.
Size	Schedule	Single source	Wall it gave
NPS 1/8	160	Flange Bolt Chart	0.124
NPS 1/8	XXS	Flange Bolt Chart	0.19
NPS 1/8	5S	Wikipedia	0.035
NPS 1/4	160	Flange Bolt Chart	0.145
NPS 1/4	XXS	Flange Bolt Chart	0.238
NPS 1/4	5S	Wikipedia	0.049
NPS 3/8	160	Flange Bolt Chart	0.158
NPS 3/8	XXS	Flange Bolt Chart	0.252
NPS 3/8	5S	Wikipedia	0.049
NPS 2-1/2	120	Wikipedia	0.3
NPS 3	120	Wikipedia	0.35
NPS 3-1/2	XXS	Wikipedia	0.636
NPS 22	40S	Wikipedia	0.375
NPS 22	80S	Wikipedia	0.5

Related · free

Pipe threads

Pipe is joined by thread as often as by weld. The pipe thread reference carries NPT, BSPT and BSPP by the same trade size used here, with the tap drill and the reason a tapered thread seals on its flanks while a parallel one seals on a washer.