Pipe Wall Thickness Chart for Flange Bores

NOMINAL WALL THICKNESS
Nom Pipe Size	OD	Sch 10	Sch 20	Sch 30	STD Wall	Sch 40	Sch 60	EXT Hvy	Sch 80	Sch 100	Sch 120	Sch 140	Sch 160	XX Hvy
½	0.84	0.083	……..	……..	0.109	0.109	……..	0.147	0.147	……..	……..	……..	0.188	0.294
¾	1.05	0.083	……..	……..	0.113	0.113	……..	0.154	0.154	……..	……..	……..	0.219	0.308
1	1.315	0.109	……..	……..	0.133	0.133	……..	0.179	0.179	……..	……..	……..	0.25	0.358
1 ¼	1.66	0.109	……..	……..	0.14	0.14	……..	0.191	0.191	……..	……..	……..	0.25	0.382
1 ½	1.9	0.109	……..	……..	0.145	0.145	……..	0.2	0.2	……..	……..	……..	0.281	0.4
2	2.375	0.109	……..	……..	0.154	0.154	……..	0.218	0.218	……..	……..	……..	0.344	0.436
2 ½	2.875	0.12	……..	……..	0.203	0.203	……..	0.276	0.276	……..	……..	……..	0.375	0.552
3	3.5	0.12	……..	……..	0.216	0.216	……..	0.3	0.3	……..	……..	……..	0.438	0.6
3 ½	4	0.12	……..	……..	0.226	0.226	……..	0.318	0.318	……..	……..	……..	……..	0.636
4	4.5	0.12	……..	……..	0.237	0.237	……..	0.337	0.337	……..	0.438	……..	0.531	0.674
5	5.563	0.134	……..	……..	0.258	0.258	……..	0.375	0.375	……..	0.5	……..	0.625	0.75
6	6.625	0.134	……..	……..	0.28	0.28	……..	0.432	0.432	……..	0.562	……..	0.719	0.864
8	8.625	0.148	0.25	0.277	0.322	0.322	0.406	0.5	0.5	0.594	0.719	0.812	0.906	0.875
10	10.75	0.165	0.25	0.307	0.365	0.365	0.5	0.5	0.594	0.719	0.844	1	1.125	1
12	12.75	0.18	0.25	0.33	0.375	0.406	0.562	0.5	0.688	0.844	1	1.125	1.312	1
14	14	0.25	0.312	0.375	0.375	0.438	0.594	0.5	0.75	0.938	1.094	1.25	1.406	……..
16	16	0.25	0.312	0.375	0.375	0.5	0.656	0.5	0.844	1.031	1.219	1.438	1.594	……..
18	18	0.25	0.312	0.438	0.375	0.562	0.75	0.5	0.938	1.156	1.375	1.562	1.781	……..
20	20	0.25	0.375	0.5	0.375	0.594	0.812	0.5	1.031	1.281	1.5	1.75	1.969	……..
22	22	0.25	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
24	24	0.25	0.375	0.562	0.375	0.688	0.969	0.5	1.219	1.531	1.812	2.062	2.344	……..
26	26	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
30	30	0.312	0.5	0.625	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
36	36	0.312	0.5	0.625	0.375	0.75	……..	0.5	……..	……..	……..	……..	……..	……..
40	40	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
42	42	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
48	48	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..

Dimensions are in inches. Weights are in pounds.

Light Wall thicknesses are identical to stainless steel Schedule 10S in sizes through 12″, and to Schedule 10 sizes 14″, and larger.

Standard Wall thicknesses are identical to stainless steel Schedule 40S in sizes though 10″.

Extra Heavy Wall thicknesses are identical to stainless steel Schedule 80S in sizes through 8″.

Other types, sizes, and thicknesses of flanges can be provided to meet application.

Stocked and manufactured in carbon steel, stainless steel, and variety of other metals and alloy.

Looking for pipe dimensions rather than flange wall thickness? See the pipe schedule chart, or get weight per foot and total weight for any size and schedule with the pipe schedule and weight calculator.

Inside pipe diameters are provide on the following page.

Bore Charts

Wall Thickness PDF (for printing).

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Pipe Wall Thickness Chart for Flange Bores

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