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ASTM A192 Dimensional Table

Cold drawn heat exchangers tubes with minimum wall thickness (sizes in inches)

Outside		Minimum wall thickness
diameter		BWG (inch)	20 (.035)	18 (.049)	16 (.065)	14 (.083)	13 (.095)	12 (.109)	11 (.120)	10 (.134)	9 (.148)	8 (.165)	7 (.180)	6 (.203)	5 (.220)
[mm]	[inch]	[mm]	0.89	1.24	1.65	2.11	2.41	2.77	3.05	3.4	3.76	4.19	4.57	5.16	5.59
	1/2	lb/ft	0.19	0.256	0.327	0.399	0.441	0.487	0.519	0.555	0.586
12.7	0.5	kg/m	0.283	0.381	0.487	0.594	0.657	0.725	0.773	0.826	0.873
	5/8	lb/ft	0.242	0.328	0.423	0.521	0.581	0.647	0.696	0.752	0.804
15.88	0.625	kg/m	0.36	0.488	0.63	0.776	0.865	0.964	1036	1120	1198
	3/4	lb/ft		0.4	0.518	0.643	0.72	0.807	0.872	0.948	1021
19.05	0.75	kg/m		0.595	0.771	0.957	1072	1202	1299	1412	1521
	7/8	lb/ft		0.472	0.614	0.767	0.864	0.973	1056	1158
22.23	0.875	kg/m		0.702	0.913	1141	1285	1448	1571	1722
	1	lb/ft		0.543	0.709	0.887	0.998	1128	1225	1342	1456	1587	1696
25.4	1	kg/m		0.808	1056	1321	1487	1680	1824	1998	2169	2363	2526
	1.25	lb/ft		0.686	0.9	1131	1277	1448	1577	1734	1891	2071	2225	2451	2607
31.75	1.25	kg/m		1022	1340	1684	1902	2157	2349	2583	2816	3085	3313	3650	3882
	1.5	lb/ft		0.83	1090	1375	1556	1769	1930	2128	2326	2556	2753	3047	3253
38.1	1.5	kg/m		1236	1624	2048	2317	2634	2875	3169	3464	3807	4100	4538	4845
	2	lb/ft			1472	1863	2114	2409	2636	2914	3196	3525	3810	4241	4547
50.8	2	kg/m			2192	2775	3148	3588	3925	4340	4759	5250	5674	6316	6771
	2.5	lb/ft			1854	2351	2671	3050	3341	3701	4066	4494	4867	5435	5839
63.5	2.5	kg/m			2761	3502	3978	4542	4976	5512	6055	6693	7249	8094	8696
	3	lb/ft				2840	3228	3691	4047	4487	4935	5464	5924	6628	7132
76.2	3	kg/m				4229	4808	5497	6027	6683	7350	8137	8823	9871	10622

Cold drawn heat exchangers tubes with average wall thickness (sizes in inches)

Outside	Average wall thickness
diameter	BWG (inch)		20 (.035)	18 (.049)	16 (.065)	14 (.083)	13 (.095)	12 (.109)	11 (.120)	10 (.134)	9 (.148)	8 (.165)	7 (.180)	6 (.203)	5 (.220)
[mm]	[inch]	[mm]	0,89	1,24	1,65	2,11	2,41	2,77	3,05	3,40	3,76	4,19	4,57	5,16	5,59
	1/2	lb/ft	0.173	0.236	0.302	0.369	0.41	0.445	0.487	0.523	0.557
12,70	0.5	kg/m	0,259	0,351	0,450	0,551	0,612	0,678	0,726	0,780	0,829
	5/8	lb/ft	0.22	0.301	0.388	0.48	0.537	0.6	0.647	0.703	0.754
15,88	0.625	kg/m	0,328	0,447	0,579	0,716	0,801	0,897	0,965	1,046	1,124
	3/4	lb/ft	0.267	0.366	0.475	0.591	0.664	0.745	0.807	0.881	0.952
19,05	0.75	kg/m	0,398	0,547	0,708	0,881	0,989	1,110	1,203	1,312	1,418
	7/8	lb/ft		0.432	0.562	0.702	0.791	0.891	0.967	1.06
22,23	0.875	kg/m		0,643	0,836	1,045	1,177	1,326	1,439	1,577
	1	lb/ft		0.497	0.649	0.812	0.918	1.037	1.128	1.239	1.346	1.471	1.575
25,40	1	kg/m		0,740	0,966	1,212	1,366	1,550	1,681	1,845	2,006	2,192	2,347
	1 1/4	lb/ft		0.628	0.822	1.034	1.172	1.328	1.448	1.597	1.741	1.912	2.056	2.272	2.417
31,75	1.25	kg/m		0,933	1,225	1,542	1,744	1,980	2,159	2,377	2,595	2,848	3,063	3,383	3,606
	1 1/2	lb/ft		0.759	0.996	1.256	1.426	1.619	1.769	1.955	2.137	2.353	2.537	2.814	3.009
38,10	1.5	kg/m		1,127	1,483	1,870	2,121	2,413	2,636	2,909	3,184	3,504	3,779	4,191	4,481
	2	lb/ft			1.343	1.699	1.933	2.201	2.409	2.67	2.929	3.246	3.499	3.896	4.185
50,80	2	kg/m			2,000	2,533	2,876	3,281	3,591	3,974	4,362	4,816	5,210	5,807	6,232
	2 1/2	lb/ft			1.69	2.143	2.44	2.783	3.05	3.385	3.717	4.126	4.46	4.98	5.36
63,50	2.5	kg/m			2,517	3,194	3,631	4,148	4,547	5,039	5,539	6,128	6,641	7,424	7,983
	3	lb/ft				2.586	2.947	3.365	3.691	4.102	4.508	5.006	5.421	6.064	6.536
76,20	3	kg/m				3,855	4,385	5,016	5,502	6,104	6,717	7,440	8,072	9,040	9,734

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