Stainless Steel NB Pipe Size Chart

Dimensional Chart for Nominal Bore Pipe in both Inches and millimetres.

Dimensions shown are in mm, if you wish to convert to Inches, please use our universal converter.

STAINLESS STEEL NOMINAL BORE PIPE DIMENSIONS

Nominal Pipe Size Inches	Nominal Pipe Size mm	OD Inches	OD mm	Schedule Designations ANSI/ASME	Wall Thickness Inches	Wall Thickness mm	Lbs/Ft	Kg/M
1/8	6	0.405	10.3	10/10S	0.049	1.24	0.1863	0.28
1/8	6	0.405	10.3	STD/40/40S	0.068	1.73	0.2447	0.36
1/8	6	0.405	10.3	XS/80/80S	0.095	2.41	0.3145	0.47
1/4	8	0.54	13.7	10/10S	0.065	1.65	0.3297	0.49
1/4	8	0.54	13.7	STD/40/40S	0.088	2.24	0.4248	0.63
1/4	8	0.54	13.7	XS/80/80S	0.119	3.02	0.5351	0.8
3/8	10	0.675	17.1	10/10S	0.065	1.65	0.4235	0.63
3/8	10	0.675	17.1	STD 40/40S	0.091	2.31	0.5676	0.84
3/8	10	0.675	17.1	XS 80/80S	0.126	3.2	0.7388	1.1
1/2	15	0.84	21.3	5/5S	0.065	1.65	0.5383	0.8
1/2	15	0.84	21.3	10/10S	0.083	2.11	0.671	1
1/2	15	0.84	21.3	STD 40/40S	0.109	2.77	0.851	1.27
1/2	15	0.84	21.3	XS 80/80S	0.147	3.73	1.088	1.62
1/2	15	0.84	21.3	160	0.188	4.78	1.309	1.95
1/2	15	0.84	21.3	XX	0.294	7.47	1.714	2.55
3/4	20	1.05	26.7	5/5S	0.065	1.65	0.6838	1.02
3/4	20	1.05	26.7	10/10S	0.083	2.11	0.8572	1.28
3/4	20	1.05	26.7	STD/40/40S	0.113	2.87	1.131	1.68
3/4	20	1.05	26.7	XS/80/80S	0.154	3.91	1.474	2.19
3/4	20	1.05	26.7	160	0.219	5.56	1.944	2.89
3/4	20	1.05	26.7	XX	0.308	7.82	2.441	3.63
1	25	1.315	33.4	5/5S	0.065	1.65	0.8678	1.29
1	25	1.315	33.4	10/10S	0.109	2.77	1.404	2.09
1	25	1.315	33.4	STD/40/40S	0.133	3.38	1.679	2.5
1	25	1.315	33.4	XS/80/80S	0.179	4.55	2.172	3.23
1	25	1.315	33.4	160	0.25	6.35	2.844	4.23
1	25	1.315	33.4	XX	0.358	9.09	3.659	5.45
1 1/4	32	1.66	42.2	5/5S	0.065	1.65	1.107	1.65
1 1/4	32	1.66	42.2	10/10S	0.109	2.77	1.806	2.69
1 1/4	32	1.66	42.2	STD/40/40S	0.14	3.56	2.273	3.38
1 1/4	32	1.66	42.2	XS/80/80S	0.191	4.85	2.997	4.46
1 1/4	32	1.66	42.2	160	0.25	6.35	3.765	5.6
1 1/4	32	1.66	42.2	XX	0.382	9.7	5.214	7.76
1 1/2	40	1.9	48.3	5/5S	0.065	1.65	1.274	1.9
1 1/2	40	1.9	48.3	10/10S	0.109	2.77	2.085	3.1
1 1/2	40	1.9	48.3	STD/40/40S	0.145	3.68	2.718	4.05
1 1/2	40	1.9	48.3	XS/80/80S	0.2	5.08	3.631	5.4
1 1/2	40	1.9	48.3	160	0.281	7.14	4.859	7.23
1 1/2	40	1.9	48.3	XX	0.4	10.16	6.408	9.54
2	50	2.375	60.3	5/5S	0.065	1.65	1.604	2.39
2	50	2.375	60.3	10/10S	0.109	2.77	2.638	3.93
2	50	2.375	60.3	STD/40/40S	0.154	3.91	3.653	5.44
2	50	2.375	60.3	XS/80/80S	0.218	5.54	5.022	7.47
2	50	2.375	60.3	160	0.344	8.74	7.462	11.11
2	50	2.375	60.3	XX	0.436	11.07	9.029	13.44
2 1/2	65	2.875	73	5/5S	0.083	2.11	2.475	3.68
2 1/2	65	2.875	73	10/10S	0.12	3.05	3.531	5.26
2 1/2	65	2.875	73	STD/40/40S	0.203	5.16	5.793	8.62
2 1/2	65	2.875	73	XS/80/80S	0.276	7.01	7.661	11.4
2 1/2	65	2.875	73	160	0.375	9.53	10.01	14.9
2 1/2	65	2.875	73	XX	0.552	14.02	13.69	20.37
3	80	3.5	88.9	5/5S	0.083	2.11	3.029	4.51
3	80	3.5	88.9	10/10S	0.12	3.05	4.332	6.45
3	80	3.5	88.9	STD/40/40S	0.216	5.49	7.576	11.27
3	80	3.5	88.9	XS/80/80S	0.3	7.62	10.25	15.25
3	80	3.5	88.9	160	0.438	11.13	14.32	21.31
3	80	3.5	88.9	XX	0.6	15.24	18.58	27.65
3 1/2	90	4	101.6	5/5S	0.083	2.11	3.472	5.17
3 1/2	90	4	101.6	10/10S	0.12	3.05	4.973	7.4
3 1/2	90	4	101.6	STD 40/40S	0.226	5.74	9.109	13.56
3 1/2	90	4	101.6	XS 80/80S	0.318	8.08	12.5	18.6
3 1/2	90	4	101.6	XX	0.636	16.15	22.85	34.01
4	100	4.5	114.3	5/5S	0.083	2.11	3.915	5.83
4	100	4.5	114.3	10/10S	0.12	3.05	5.613	8.35
4	100	4.5	114.3	STD 40/40S	0.237	6.02	10.79	16.06
4	100	4.5	114.3	XS 80/80S	0.337	8.56	14.98	22.29
4	100	4.5	114.3	120	0.438	11.13	19	28.28
4	100	4.5	114.3	160	0.531	13.49	22.51	33.5
4	100	4.5	114.3	XX	0.674	17.12	27.54	40.99
5	125	5.563	141.3	5/5S	0.109	2.77	6.349	9.45
5	125	5.563	141.3	10/10S	0.134	3.4	7.77	11.56
5	125	5.563	141.3	STD 40/40S	0.258	6.55	14.62	21.76
5	125	5.563	141.3	XS 80/80S	0.375	9.53	20.78	30.93
5	125	5.563	141.3	120	0.5	12.7	27.04	40.24
5	125	5.563	141.3	160	0.625	15.88	32.96	49.05
5	125	5.563	141.3	XX	0.75	19.05	38.55	57.37
6	150	6.625	168.3	5/5S	0.109	2.77	7.585	11.29
6	150	6.625	168.3	10/10S	0.134	3.4	9.289	13.82
6	150	6.625	168.3	120	0.562	14.27	36.39	54.16
6	150	6.625	168.3	160	0.719	18.26	45.35	67.49
8	200	8.625	219.1	10/10S	0.148	3.76	13.6	19.94
8	200	8.625	219.1	20	0.25	6.35	22.36	33.28
8	200	8.625	219.1	30	0.277	7.04	24.7	36.76
8	200	8.625	219.1	STD/40/40S	0.322	8.18	28.55	42.49
8	200	8.625	219.1	60	0.406	10.31	35.64	53.04
8	200	8.625	219.1	XS/80/80S	0.5	12.7	43.39	64.58
8	200	8.625	219.1	100	0.594	15.09	50.95	75.83
8	200	8.625	219.1	120	0.719	18.26	60.71	90.35
8	200	8.625	219.1	140	0.812	20.62	67.76	100.84
8	200	8.625	219.1	XX	0.875	22.23	72.42	107.78

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