This specification covers UNS A96061 or A96063 aluminum alloy extruded pipes and tubes intended for use in structural applications. The structural pipes and tubes that may be produced through a bridge/porthole type die or other approved methods are not for use in fluid-carrying applications involving pressure. Both alloys may be extrusion press solution heat treated to produce the specified tempers. Each pipe or tube should be supplied with plain square-cut ends and mill finished unless otherwise specified. Samples for chemical analysis should be taken from the materials by drilling, sawing, turning, or clipping and subjected to suitable chemical or spectrochemical methods of analysis.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers aluminum-alloy extruded structural pipe and tube in those selected alloys shown in Table 1 and tempers shown in Table 2, and in those standard sizes shown in Tables 3-5, as well as in other nonstandard sizes as agreed upon between the purchaser and supplier. Such pipe and tube is intended for use in structural applications such as highway and bridge rails, chain-link fence posts, handrails, sign structures, awning supports, lighting brackets, etc. Structural pipe and tube is not intended for fluid-carrying applications involving pressure.

Note 1—For drawn seamless tube used in pressure applications see Specifications B210 and B210M, for seamless pipe and seamless extruded tube used in pressure applications see Specifications B241/B241M, and for drawn tube and pipe for general purpose applications see Specification B483/B483M.

1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9, for example, A96061 for alloy 6061 in accordance with Practice E527.

1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.

1.4 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.

1.4.1 While this standard is a combined SI and inch-pound standard, standard pipe sizes are not applicable to SI units, therefore non-rationalized SI units (soft conversions) are shown for reader convenience. Rationalized [hard converted] SI units are shown in brackets while non-rationalized (soft converted) SI units are shown in parentheses.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

TABLE 2 Tensile Property Limits^A,B,C

Alloy-Temper	Specified Wall Thickness, in. [mm]	Tensile Strength, min, ksi [MPa]°	Yield Strength, min, ksi [MPa]D	Elongation, min, %
				In 2 in. or 4 × DiameterE	In 50 mmF	In 5 × Diameter F
6005-T1	Up thru 0.500 [Up thru12.5]	25.0 [170]	15 [105]	16	16	14
6005-T5	Up thru 0.124 [Up thru 3.20] 0.125-1.000 [3.20-25.0]	38.0 [260] 38.0 [260]	35.0 [240] 35.0 [240]	8 10	8 10	9
6005A-T1	Up thru 0.249 [Up thru 6.30]	25.0 [170]	14.5 [100]	15	15	. . .
6005A-T5	Up thru 0.249 [Up thru 6.30] 0.250-0.999 [6.30-25.00]	38.0 [260] 38.0 [260]	31.0 [215] 31.0 [215]	7 9	7 9	. . . 8
6005A-T61	Up thru 0.249 [Up thru 6.30] 0.250-1.000 [6.30-25.00]	38.0 [260] 38.0 [260]	35.0 [240] 35.0[240]	8 10	8 10	. . . 9
6061-0	All	22.0 [150] max	16.0 [110] max	16	16
6061-T1	Up thru 0.625	26.0 [180]	14.0 [95]	16	16
6061-T4,T4510, T4511	All	26.0 [180]	16.0 [110]	16	16	14
6061-T6, T62, T6510, T6511	Up thru 0.249 [Up thru 6.30] 0.250 and over [over 6.30]	38.0 [260] 38.0 [260]	35.0 [240] 35.0 [240]	8 10	8 10	... 9
6063-0 6063-T1	All Up thru 0.500 [Up thru 12.50] 0.501-1.000 [12.50- 25.00]	19 [130] max 17.0 [115] 16.0 [110]	... 9.0 [60] 8.0 [55]	18 12 12	18 12 12
6063-T4, T42	Up thru 0.500 [Up thru 12.50] 0.501-1.000 [over 12.50 thru 25.00]	19.0 [130] 18.0 [125]	10.0 [70] 9.0 [60]	14 14	14 ...	12 12
6063-T5	Up thru 0.500 [Up thru 12.50] 0.501-1.000 [12.50- 25.00]	22.0 [150] 21.0[145]	16.0 [110] 15.0 [105]	8 8	8 8
6063-T52	Up thru 1.000 [Up thru 25.00]	22.0 [150] 30 [205] max	16.0 [110]- 25.0 [170] max	8	8
6063-T6, T62	Up thru 0.124 [Up thru 3.20] 0.125-1.000 [over 3.20 thru 25.00]	30.0 [205] 30.0 [205]	25.0 [170] 25.0 [170]	8 10	8 10	... 9
6082-T6, T6511	0.200-1.000 [5.00-25.00]	45.0 [310]	38.0 [260]	8	8	7
6105-T1	Up thru 0.500 [Up thru12.50]	25.0 [170]	15.0 [105]	16	16	14
6105-T5	Up thru 0.500 [Up thru12.50]	38.0 [260]	35.0 [240]	8	8	7

^A To determine conformance to this specification, each value for tensile strength and for yield strength shall be rounded-off to the nearest 0.1 ksi and each value for elongation to the nearest 0.5 percent, both in accordance with the rounding-off method of Practice E29.

^B Specimens shall be tested parallel to the direction of working.

^C The basis for establishment of mechanical property limits is shown in Annex A1.

^D For explanation of the SI unit MPa, see Appendix X1.

^E Elongation of full-section and cut-out sheet-type specimens is measured in 2 in., of cut-out round specimens, in 4 × specimen diameter.

^F Elongations in 50 mm apply for tube and pipe tested in full section and for sheet-type specimens machined from material up through 12.5 mm thickness having parallel surfaces. Elongation in 5D where D and A are diameter and cross-sectional area of the specimen respectively, apply to round test specimens machined from thicknesses over 12.5 mm.

TABLE 3 Standard Structural Pipe Diameters, Wall Thicknesses, Weights^A

Nominal Pipe Size Designation	ANSI Schedule No.B	Outside Diameter, in.			Inside Diameter, in.	Wall Thickness, in.			Weight,C lb/ft
		Nom.	Min.	Max.	Nom.	Nom.	Min.	Max.D	Nom.	Max.
1/8	40 80	0.405 0.405	0.374 0.374	0.420 0.420	0.269 0.215	0.068 0.095	0.060 0.083	. . . . . .	0.085 0.109	0.091 0.118
¼	40 80	0.540 0.540	0.509 0.509	0.555 0.555	0.364 0.302	0.088 0.119	0.077 0.104	. . . . . .	0.147 0.185	0.159 0.200
3/8	40 80	0.675 0.675	0.644 0.644	0.690 0.690	0.493 0.423	0.091 0.126	0.080 0.110	. . . . . .	0.196 0.256	0.212 0.276
½	5 10 40 80 160	0.840 0.840 0.840 0.840 0.840	0.809 0.809 0.809 0.809 0.809	0.855 0.855 0.855 0.855 0.855	0.710 0.674 0.622 0.546 0.464	0.065 0.083 0.109 0.147 0.188	0.053 0.071 0.095 0.129 0.164	0.077 0.095 . . . . . . . . .	0.186 0.232 0.294 0.376 0.453	. . . . 0.318 0.406 0.489
¾	5 10 40 80 160	1.050 1.050 1.050 1.050 1.050	1.019 1.019 1.019 1.019 1.019	1.065 1.065 1.065 1.065 1.065	0.920 0.884 0.824 0.742 0.612	0.065 0.083 0.113 0.154 0.219	0.053 0.071 0.099 0.135 0.192	0.077 0.095 . . . . . . . . .	0.237 0.297 0.391 0.510 0.672	... … 0.422 0.551 0.726
1	5 10 40 80 160	1.315 1.315 1.315 1.315 1.315	1.284 1.284 1.284 1.284 1.284	1.330 1.330 1.330 1.330 1.330	1.185 1.097 1.049 0.957 0.815	0.065 0.109 0.133 0.179 0.250	0.053 0.095 0.116 0.157 0.219	0.077 0.123 . . . . . . …	0.300 0.486 0.581 0.751 0.984	... ... 0.627 0.811 1.062
1¼	5 10 40 80 160	1.660 1.660 1.660 1.660 1.660	1.629 1.629 1.629 1.629 1.629	1.675 1.675 1.675 1.675 1.675	1.530 1.442 1.380 1.278 1.160	0.065 0.109 0.140 0.191 0.250	0.053 0.095 0.122 0.167 0.219	0.077 0.123 . . . . . . . . .	0.383 0.625 0.786 1.037 1.302	... ... 0.849 1.120 1.407
1½	5 10 40 80 160	1.900 1.900 1.900 1.900 1.900	1.869 1.869 1.869 1.869 1.869	1.915 1.915 1.915 1.915 1.915	1.770 1.682 1.610 1.500 1.338	0.065 0.109 0.145 0.200 0.281	0.053 0.095 0.127 0.175 0.246	0.077 0.123 . . . . . . . . .	0.441 0.721 0.940 1.256 1.681	... ... 1.015 1.357 1.815
2	5 10 40 80 160	2.375 2.375 2.375 2.375 2.375	2.344 2.344 2.351 2.351 2.351	2.406 2.406 2.399 2.399 2.399	2.245 2.157 2.067 1.939 1.687	0.065 0.109 0.154 0.218 0.344	0.053 0.095 0.135 0.191 0.301	0.077 0.123 . . . . . . . . .	0.555 0.913 1.264 1.737 2.581	... … 1.365 1.876 2.788
2½	5 10 40 80 160	2.875 2.875 2.875 2.875 2.875	2.844 2.844 2.846 2.846 2.846	2.906 2.906 2.904 2.904 2.904	2.709 2.635 2.469 2.323 2.125	0.083 0.120 0.203 0.276 0.375	0.071 0.105 0.178 0.242 0.328	0.095 0.135 . . . . . . . . .	0.856 1.221 2.004 2.650 3.464	... ... 2.164 2.862 3.741
3	5 10 40 80 160	3.500 3.500 3.500 3.500 3.500	3.469 3.469 3.465 3.465 3.465	3.531 3.531 3.535 3.535 3.535	3.334 3.260 3.068 2.900 2.624	0.083 0.120 0.216 0.300 0.438	0.071 0.105 0.189 0.262 0.383	0.095 0.135 ... ... ...	1.048 1.498 2.621 3.547 4.955	... … 2.830 3.830 5.351
3½	5 10 40 80	4.000 4.000 4.000 4.000	3.969 3.969 3.960 3.960	4.031 4.031 4.040 4.040	3.834 3.760 3.548 3.364	0.083 0.120 0.226 0.318	0.071 0.105 0.198 0.278	0.095 0.135 ... …	1.201 1.720 3.151 4.326	... ... 3.403 4.672
4	5 10 40 80 120 160	4.500 4.500 4.500 4.500 4.500 4.500	4.469 4.469 4.455 4.455 4.455 4.455	4.531 4.531 4.545 4.545 4.545 4.545	4.334 4.260 4.026 3.826 3.624 3.438	0.083 0.120 0.237 0.337 0.438 0.531	0.071 0.105 0.207 0.295 0.383 0.465	0.095 0.135 3.733 ... ... ...	1.354 1.942 4.031 5.183 6.573 7.786	... ... 5.598 7.099 8.409
5	5 10 40 80 120 160	5.563 5.563 5.563 5.563 5.563 5.563	5.532 5.532 5.507 5.507 5.507 5.507	5.625 5.625 5.619 5.619 5.619 5.619	5.345 5.295 5.047 4.813 4.563 4.313	0.109 0.134 0.258 0.375 0.500 0.625	0.095 0.117 0.226 0.328 0.438 0.547	0.123 0.151 ... ... ... ...	2.196 2.688 5.057 7.188 9.353 11.40	... ... 5.461 7.763 10.10 12.31
6	5 10 40 80 120 160	6.625 6.625 6.625 6.625 6.625 6.625	6.594 6.594 6.559 6.559 6.559 6.559	6.687 6.687 6.691 6.691 6.691 6.691	6.407 6.357 6.065 5.761 5.501 5.187	0.109 0.134 0.280 0.432 0.562 0.719	2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard. ASTM Standards B210 Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes B210M Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes (Metric) B241/B241M Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube B483/B483M Specification for Aluminum and Aluminum-Alloy Drawn Tube and Pipe for General Purpose Applications B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric) B660 Practices for Packaging/Packing of Aluminum and Magnesium Products B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products B807/B807M Practice for Extrusion Press Solution Heat Treatment for Aluminum Alloys B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products B918 Practice for Heat Treatment of Wrought Aluminum Alloys B945 Practice for Aluminum Alloy Extrusions Press Cooled from an Elevated Temperature Shaping Process for Production of T1, T2, T5 and T10-Type Tempers E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere E716 Practices for Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Atomic Emission Spectrometry ANSI Standards H35.2(M) Dimensional Tolerance for Aluminum Mill Products [Metric] Military Standard MIL-STD-129 Marking for Shipment and Storage Federal Standard Fed.Std.No.123 Marking for Shipment (Civil Agencies) EN Standards CENEN14242 Aluminum and Aluminum Alloys, Chemical Analysis, Inductively Coupled Plasma Optical Emission Spectral Analysis Keywords aluminum alloy; extruded pipe; extruded tube; Aluminum--specifications; Aluminum alloys (pipe)--specifications; Aluminum alloys (structural)--specifications; Aluminum alloys (tube)--specifications; Aluminum pipe--specifications; Aluminum tube--specifications; Bridge/structural materials--specifications; Structural aluminum--specifications; UNS A96061 (Wr. alum. alloy); UNS A96063 (Wr. alum. alloy)--pipe/tube ICS Code ICS Number Code 77.150.10 (Aluminium products) DOI: 10.1520/B0429_B0429M-10E01 ASTM International is a member of CrossRef. ASTM B429 / B429M (Nonferrous Metal Standards and Nonferrous Alloy Standards) Citing ASTM Standards [Back to Top]