Seamless steel tubes for heat exchangers ASTM A 161 Grade T-1

Basic parameters

Product \| Product application	Seamless steel tubes \| for heat exchangers
Standard	ASTM
Dimensional standard	A161 \| Seamless low-carbon and carbon-molybdenum steel tubes for refinery service.
TDC	A161/A450 \| Seamless low-carbon and carbon-molybdenum steel still tubes for refinery service. / General requirements for carbon, ferritic alloy and austenitic alloy steel tubes.
Steel grade	Grade T-1
Surface coating	Without coating
Dimensions	12.70 x 0.89 - 76.20 x 5.59 mm [0.500 x 0.035 - 3.000 x 0.220 in] [20 - 5 BWG]
Dimensional table

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	3,40	3,76	4,19	4,57	5,16	5,59
12,70	1/2	lb/ft	0,190	0,256	0,327	0,399	0,441	0,487	0,519	0,555	0,586
12,70	.500	kg/m	0,283	0,381	0,487	0,594	0,657	0,725	0,773	0,826	0,873
15,88	5/8	lb/ft	0,242	0,328	0,423	0,521	0,581	0,647	0,696	0,752	0,804
15,88	.625	kg/m	0,360	0,488	0,630	0,776	0,865	0,964	1,036	1,120	1,198
19,05	3/4	lb/ft		0,400	0,518	0,643	0,720	0,807	0,872	0,948	1,021
19,05	.750	kg/m		0,595	0,771	0,957	1,072	1,202	1,299	1,412	1,521
22,23	7/8	lb/ft		0,472	0,614	0,767	0,864	0,973	1,056	1,158
22,23	.875	kg/m		0,702	0,913	1,141	1,285	1,448	1,571	1,722
25,40	1	lb/ft		0,543	0,709	0,887	0,998	1,128	1,225	1,342	1,456	1,587	1,696
25,40	1.000	kg/m		0,808	1,056	1,321	1,487	1,680	1,824	1,998	2,169	2,363	2,526
31,75	1 1/4	lb/ft		0,686	0,900	1,131	1,277	1,448	1,577	1,734	1,891	2,071	2,225	2,451	2,607
31,75	1.250	kg/m		1,022	1,340	1,684	1,902	2,157	2,349	2,583	2,816	3,085	3,313	3,650	3,882
38,10	1 1/2	lb/ft		0,830	1,090	1,375	1,556	1,769	1,930	2,128	2,326	2,556	2,753	3,047	3,253
38,10	1.500	kg/m		1,236	1,624	2,048	2,317	2,634	2,875	3,169	3,464	3,807	4,100	4,538	4,845
50,80	2	lb/ft			1,472	1,863	2,114	2,409	2,636	2,914	3,196	3,525	3,810	4,241	4,547
50,80	2.000	kg/m			2,192	2,775	3,148	3,588	3,925	4,340	4,759	5,250	5,674	6,316	6,771
63,50	2 1/2	lb/ft			1,854	2,351	2,671	3,050	3,341	3,701	4,066	4,494	4,867	5,435	5,839
63,50	2.500	kg/m			2,761	3,502	3,978	4,542	4,976	5,512	6,055	6,693	7,249	8,094	8,696
76,20	3	lb/ft				2,840	3,228	3,691	4,047	4,487	4,935	5,464	5,924	6,628	7,132
76,20	3.000	kg/m				4,229	4,808	5,497	6,027	6,683	7,350	8,137	8,823	9,871	10,622

Cold drawn heat exchangers tubes with average wall thickness (sizes in inches)
							aaa
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
12,70	1/2	lb/ft	0.173	0.236	0.302	0.369	0.410	0.445	0.487	0.523	0.557
12,70	.500	kg/m	0,259	0,351	0,450	0,551	0,612	0,678	0,726	0,780	0,829
15,88	5/8	lb/ft	0.220	0.301	0.388	0.480	0.537	0.600	0.647	0.703	0.754
15,88	.625	kg/m	0,328	0,447	0,579	0,716	0,801	0,897	0,965	1,046	1,124
19,05	3/4	lb/ft	0.267	0.366	0.475	0.591	0.664	0.745	0.807	0.881	0.952
19,05	.750	kg/m	0,398	0,547	0,708	0,881	0,989	1,110	1,203	1,312	1,418
22,23	7/8	lb/ft		0.432	0.562	0.702	0.791	0.891	0.967	1.060
22,23	.875	kg/m		0,643	0,836	1,045	1,177	1,326	1,439	1,577
25,40	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	1.000	kg/m		0,740	0,966	1,212	1,366	1,550	1,681	1,845	2,006	2,192	2,347
31,75	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	1.250	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
38,10	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	1.500	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
50,80	2	lb/ft			1.343	1.699	1.933	2.201	2.409	2.670	2.929	3.246	3.499	3.896	4.185
50,80	2.000	kg/m			2,000	2,533	2,876	3,281	3,591	3,974	4,362	4,816	5,210	5,807	6,232
63,50	2 1/2	lb/ft			1.690	2.143	2.440	2.783	3.050	3.385	3.717	4.126	4.460	4.980	5.360
63,50	2.500	kg/m			2,517	3,194	3,631	4,148	4,547	5,039	5,539	6,128	6,641	7,424	7,983
76,20	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	3.000	kg/m				3,855	4,385	5,016	5,502	6,104	6,717	7,440	8,072	9,040	9,734

Chemical composition

	C	Si	Mn	P	S	Cr	Ni
min	0.1	0.1	0.3	0	0
max	0.2	0.5	0.8	0.025	0.025

	Mo	Cu	Al	V	Ti	Nb	Sn
min	0.44
max	0.65

Mechanical properties

	Re (MPa)	Re (ksi)	Rm (MPa)	Rm (ksi)	A (%)
min	207		379	55	30
max	-	-	0	-	-

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Basic parameters

Chemical composition

Mechanical properties

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