ASTM B221-12

Name: ASTM B221-12
Brand: ASTM
SKU: astm-b221-12

system ASTM 2013-01-14 19 PDF 461 0 2026-07-03 18:43

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Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

description

Abstract

This specification covers extruded bars, rods, wires, profiles, and tubes made from aluminum and aluminum alloys. All the products should be produced by hot extrusion or similar methods. The chemical composition of each material is determined in accordance with the specified suitable chemical and spectrochemical test methods. Samples for chemical analysis should be taken when the ingots are poured or from the finished or semi-finished products by drilling, sawing, milling, turning, or clipping. Tensile properties, elongation, and yield strengths of each product should conform to the requirements listed herein. Elongation requirements are not applicable for materials with sizes smaller than the specified limits.

Scope

1.1 This specification covers aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes in the aluminum alloys (Note 1) and tempers shown in Table 2.

Note 1—Throughout this specification, the use of the term alloy in the general sense includes aluminum as well as aluminum alloy.

Note 2—For rolled or cold-finished bar and rod refer to Specification B211, for drawn seamless tube used in pressure applications, Specification B210, for structural pipe and tube, Specification B429/B429M, and for seamless pipe and tube used in pressure applications, Specification B241/B241M.

Note 3—Structural pipe and tube produced in accordance with B221 is not intended for fluid-carrying applications involving pressure. Refer to either Specification B210 or B241/B241M, as appropriate, for seamless pipe and tube used in fluid-carrying applications involving pressure.

1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1M. The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9; for example, A91100 for Aluminum 1100 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 A complete metric companion to B221 has been developedB221M; therefore, no metric equivalents are presented in this specification.

TABLE 1 Chemical Composition Limits ^A^,^B^,^C

Note—In case of a discrepancy between the values listed in Table 2 and those listed in the “International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys” (known as the “Teal Sheets”), the composition limits registered with the Aluminum Association and published in the “Teal Sheets” should be considered the controlling composition. The “Teal Sheets” are available at http://www.aluminum.org/tealsheets.

Alloy	Silicon	Iron	Copper	Manga- nese	Magne- sium	Chromium	Zinc	Titanium	Vanadium	Other Elements^D		Aluminum
Alloy	Silicon	Iron	Copper	Manga- nese	Magne- sium	Chromium	Zinc	Titanium	Vanadium	Each	Total^E	Aluminum
1060	0.25	0.35	0.05	0.03	0.03	...	0.05	0.03	0.05	0.03	...	99.60 min^F
1100	0.95 Si + Fe		0.05–0.20	0.05	...	...	0.10	...	...	0.05^G	0.15	99.00 min^F
2014	0.50–1.2	0.7	3.9–5.0	0.40–1.2	0.20–0.8	0.10	0.25	0.15^H	...	0.05^H	0.15	remainder
2024	0.50	0.50	3.8–4.9	0.30–0.9	1.2–1.8	0.10	0.25	0.15^H	...	0.05^H	0.15	remainder
2219	0.20	0.30	5.8–6.8	0.20–0.40	0.02	...	0.10	0.02–0.10	0.05–0.15	0.05^I	0.15^I	remainder
3003	0.6	0.7	0.05–0.20	1.0–1.5	...	...	0.10	...	...	0.05	0.15	remainder
Alclad 3003	...	3003 Clad with 7072 alloy			...	...	...	...	...	...	...	...
3004	0.30	0.7	0.25	1.0–1.5	0.8–1.3	...	0.25	...	...	0.05	0.15	remainder
3102	0.40	0.7	0.10	0.05–0.40	...	...	0.30	0.10	...	0.05	0.15	remainder
5052	0.25	0.40	0.10	0.10	2.2–2.8	0.15–0.35	0.10	...	...	0.05	0.15	remainder
5083	0.40	0.40	0.10	0.40–1.0	4.0–4.9	0.05–0.25	0.25	0.15	...	0.05	0.15	remainder
5086	0.40	0.50	0.10	0.20–0.7	3.5–4.5	0.05–0.25	0.25	0.15	...	0.05	0.15	remainder
5154	0.25	0.40	0.10	0.10	3.1–3.9	0.15–0.35	0.20	0.20	...	0.05^G	0.15	remainder
5454	0.25	0.40	0.10	0.50–1.0	2.4–3.0	0.05–0.20	0.25	0.20	...	0.05	0.15	remainder
5456	0.25	0.40	0.10	0.50–1.0	4.7–5.5	0.05–0.20	0.25	0.20	...	0.05	0.15	remainder
6005	0.6–0.9	0.35	0.10	0.10	0.40–0.6	0.10	0.10	0.10	...	0.05	0.15	remainder
6005A	0.50–0.9	0.35	0.30	0.50^J	0.40–0.7	0.30^J	0.20	0.10	...	0.05	0.15	remainder
6020^K	0.40-0.9	0.50	0.30-0.9	0.35	0.6-1.2	0.15	0.20	0.15	…	0.05	0.15	remainder
6041^L	0.50-0.9	0.15-0.7	0.15-0.6	0.05-0.20	0.8-1.2	0.05-0.15	0.25	0.15	…	0.05	0.15	remainder
6042^M	0.50-1.2	0.7	0.20-0.6	0.40	0.7-1.2	0.04-0.35	0.25	0.15	…	0.05	0.15	remainder
6060	0.30–0.6	0.10–0.30	0.10	0.10	0.35–0.6	0.5	0.15	0.10	...	0.05	0.15	remainder
6061^N	0.40–0.8	0.7	0.15–0.40	0.15	0.8–1.2	0.04–0.35	0.25	0.15	...	0.05	0.15	remainder
6063	0.20–0.6	0.35	0.10	0.10	0.45–0.9	0.10	0.10	0.10	...	0.05	0.15	remainder
6064^O	0.40-0.8	0.7	0.15-0.40	0.15	0.8-1.2	0.05-0.14	0.25	0.15	…	0.05	0.15	remainder
6066	0.9–1.8	0.50	0.7–1.2	0.6–1.1	0.8–1.4	0.40	0.25	0.20	...	0.05	0.15	remainder
6070	1.0–1.7	0.50	0.15–0.40	0.40–1.0	0.50–1.2	0.10	0.25	0.15	...	0.05	0.15	remainder
6082	0.7–1.3	0.50	0.10	0.40–1.0	0.6–1.2	0.25	0.20	0.10	...	0.05	0.15	remainder
6105	0.6–1.0	0.35	0.10	0.15	0.45–0.8	0.10	0.10	0.10	...	0.05	0.15	remainder
6162	0.40–0.8	0.50	0.20	0.10	0.7–1.1	0.10	0.25	0.10	...	0.05	0.15	remainder
6262	0.40–0.8	0.7	0.15–0.40	0.15	0.8–1.2	0.04–0.14	0.25	0.15	...	0.05^P	0.15^P	remainder
6351	0.7–1.3	0.50	0.10	0.40–0.8	0.40–0.8	...	0.20	0.20	...	0.05	0.15	remainder
6360	0.35-0.8	0.10-0.30	0.15	0.02-0.15	0.25-0.45	0.05	0.10	0.10	...	0.05	0.15	remainder
6463	0.20–0.6	0.15	0.20	0.05	0.45–0.9	...	0.05	...	...	0.05	0.15	remainder
6560	0.30–0.7	0.10–0.30	0.05–0.20	0.20	0.20–0.6	0.05	0.15	0.10	...	0.05	0.15	remainder
7005	0.35	0.40	0.10	0.20–0.7	1.0–1.8	0.06–0.20	4.0–5.0	0.01–0.06	...	0.05^Q	0.15^Q	remainder
7072^R	0.7 Si + Fe		0.10	0.10	0.10	...	0.8–1.3	...	...			remainder
7075	0.40	0.50	1.2–2.0	0.30	2.1–2.9	0.18–0.28	5.1–6.1	0.20^S	...	0.05^S	0.15	remainder
7116	0.15	0.30	0.50–1.1	0.05	0.8–1.4	...	4.2–5.2	0.05	0.05	0.05^T	0.15	remainder
7129	0.15	0.30	0.50–0.9	0.10	1.3–2.0	0.10	4.2–5.2	0.05	0.05	0.05^T	0.15	remainder
7178	0.40	0.50	1.6–2.4	0.30	2.4–3.1	0.18–0.28	6.3–7.3	0.20	...	0.05	0.15	remainder

^A Limits are in weight percent maximum unless shown as a range, or stated otherwise.

^B Analysis shall be made for the elements for which limits are shown in this table.

^C For the purpose of determining conformance to these limits, an observed value or a calculated value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of the figures used in expressing the specified limit, in accordance with the rounding-off method of Practice E29.

^D Others includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaser establish that an Others element exceeds the limit of Each or that the aggregate of several Others elements exceeds the limit of Total, the material shall be considered nonconforming.

^E Other ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.

^F The aluminum content shall be calculated by subtracting from 100.00 % the sum of all metallic elements present in amounts of 0.010 % or more each, rounded to the second decimal before determining the sum.

^G Be 0.0003 max for welding electrode, welding rod, and filler wire.

^H Upon agreement between the purchaser and the producer or supplier, a Zr + Ti limit of 0.20 % max is permitted. Properties in Specification (Table 2) are not based on the Zirconium and Titanium algorithm.

^I Zirconium, 0.10–0.25 %. The total for other elements does not include zirconium.

^J Manganese plus chromium shall total 0.12–0.50.

^K Lead 0.05 % max, Tin 0.9-1.5 %.

^L Bismuth 0.30-0.9 %, Tin 0.35-1.2 %.

^M Bismuth 0.20-0.8 % Lead 0.15-0.40 %.

^N In 1965 the requirements for 6062 were combined with those for 6061 by revising the minimum chromium from “0.15 %” to“ 0.04 %.” This action cancelled alloy 6062.

^O Bismuth 0.50-0.7 %, Lead 0.20-0.40 %,

^P Bismuth and lead shall be 0.40–0.7 % each.

^Q Zirconium 0.08–0.20 %. The total for other elements does not include zirconium.

^R Composition of cladding alloy applied during the course of manufacture. Samples from finished tube shall not be required to conform to these limits.

^S Upon agreement between the purchaser and the producer or supplier, a Zr + Ti limit of 0.25 % max is permitted. Properties in Specification (Table 2) are not based on the Zirconium and Titanium algorithm.

^T Gallium 0.03 % max.

TABLE 2 Mechanical Property Limits^A^,^B

Note—Strength values shown in parentheses are for information only.


Temper	Specified Section or Wall Thickness, in.	Area, in.²		Tensile Strength, ksi		Yield Strength (0.2 % offset), ksi		Elongation in 2 in. or 4 × Diameter, min, %^C
				min	max	min	max
Aluminum 1060^D
O	all		all	8.5	14.0	2.5	. . .	25
H112	all		all	8.5	. . .	2.5	. . .	25
Aluminum 1100^D
O	all		all	11.0	15.5	3.0	. . .	25
H112	all		all	11.0	. . .	3.0	. . .	25
Alloy 2014^D
O	all		all	. . .	30.0	. . .	18.0	12
T4
T4510^E	all		all	50.0	. . .	35.0	. . .	12
T4511^E
T42^F	all		all	50.0	. . .	29.0	. . .	12
T6	up through 0.499		all	60.0	. . .	53.0	. . .	7
T6510^E	0.500–0.749		all	64.0	. . .	58.0	. . .	7
T6511^E			up through 25	68.0	. . .	60.0	. . .	7
	0.750 and over		over 25 through 32	68.0	. . .	58.0	. . .	6

	up through 0.749		all	60.0	. . .	53.0	. . .	7
T62^F			up through 25	60.0	. . .	53.0	. . .	7
	0.750 and over
			over 25 through 32	60.0	. . .	53.0	. . .	6

Alloy 2024^D
O	all		all	. . .	35.0	. . .	19.0	12
	up through 0.249		all	57.0	. . .	42.0	. . .	12^G
T3	0.250–0.749		all	60.0	. . .	44.0	. . .	12^G
T3510^E	0.750–1.499		all	65.0	. . .	46.0	. . .	10
T3511^E			up through 25	70.0	. . .	52.0^H	. . .	10
	1.500 and over		over 25 through 32	68.0	. . .	48.0^I	. . .	8

	up through 0.749		all	57.0	. . .	38.0	. . .	12
	0.750–1.499		all	57.0	. . .	38.0	. . .	10
T42^F	1.500 and over		up through 25	57.0	. . .	38.0	. . .	10
			over 25 through 32	57.0	. . .	38.0	. . .	8

T81	0.050–0.249		all	64.0	. . .	56.0	. . .	4
T8510^E	0.250–1.499		all	66.0	. . .	58.0	. . .	5
T8511^E	1.500 and over		up through 32	66.0	. . .	58.0	. . .	5

Alloy 2219^D
O	all		all	. . .	32.0	. . .	18.0	12
T31
T3510^E	up through 0.499		up through 25	42.0	. . .	26.0	. . .	14
T3511^E	0.500–2.999		up through 25	45.0	. . .	27.0	. . .	14

T62^F	up through 0.999		up through 25	54.0	. . .	36.0	. . .	6
	1.000 and over		up through 25	54.0	. . .	36.0	. . .	6
T81
T8510^E	up through 2.999		up through 25	58.0	. . .	42.0	. . .	6
T8511^E

Alloy 3003^D
O	all		all	14.0	19.0	5.0	. . .	25
H112	all		all	14.0	. . .	5.0	. . .	25
Alloy Alclad 3003^D
O	all		all	13.0	18.0	4.5	. . .	25
H112	all		all	13.0	. . .	4.5^J	. . .	25
Alloy 3004^D
O	all		all	23.0	29.0	8.5	. . .	. . .
Alloy 3102
H112^K	0.028–0.050		all	11.0	18.0	4.0	. . .	25
Alloy 5052
O	all		all	25.0	35.0	10.0	. . .	. . .
Alloy 5083^D
O	up through 5.000^L		up through 32	39.0	51.0	16.0	. . .	14
H111	up through 5.000^L		up through 32	40.0	. . .	24.0	. . .	12
H112	up through 5.000^L		up through 32	39.0	. . .	16.0	. . .	12
Alloy 5086^D
O	up through 5.000^L		up through 32	35.0	46.0	14.0	. . .	14
H111	up through 5.000^L		up through 32	36.0	. . .	21.0	. . .	12
H112	up through 5.000^L		up through 32	35.0	. . .	14.0	. . .	12
Alloy 5154
O	all		all	30.0	41.0	11.0	. . .	. . .
H112	all		all	30.0	. . .	11.0	. . .	. . .
Alloy 5454^D
O	up through 5.000^L		up through 32	31.0	41.0	12.0	. . .	14
H111	up through 5.000^L		up through 32	33.0	. . .	19.0	. . .	12
H112	up through 5.000^L		up through 32	31.0	. . .	12.0	. . .	12
Alloy 5456^D
O	up through 5.000^L		up through 32	41.0	53.0	19.0	. . .	14
H111	up through 5.000^L		up through 32	42.0	. . .	26.0	. . .	12
H112	up through 5.000^L		up through 32	41.0	. . .	19.0	. . .	12
Alloy 6005
T1	up through 0.500		all	25.0	. . .	15.0	. . .	16
T5	up through 0.124		all	38.0	. . .	35.0	. . .	8
T5	0.125–1.000		all	38.0	. . .	35.0	. . .	10

Alloy 6005A
T1	up through 0.249		all	25.0	. . .	14.5	. . .	15
T5	up through 0.249		all	38.0	. . .	31.0	. . .	7
	0.250–0.999		all	38.0	. . .	31.0	. . .	9
T61	up through 0.249		all	38.0	. . .	35.0	. . .	8
	0.250–0.999		all	38.0	. . .	35.0	. . .	10
Alloy 6020
T6511	3.250-6.000		all	38.0	. . .	35.0	. . .	10
Alloy 6041
T6^M	0.400-2.000		all	45.0	. . .	40.0	. . .	10
T6511^M	0.400-2.000		all	45.0	. . .	40.0	. . .	10
Alloy 6042
T5	0.400-0.499		all	38.0	. . .	35.0	. . .	10
	0.500-1.800		all	42.0	. . .	35.0	. . .	10
T5511	0.400-0.499		all	38.0	. . .	35.0	. . .	10
	0.500-1.800		all	42.0	. . .	35.0	. . .	10
Alloy 6060
T51	up through 0.125		all	22.0	. . .	16.0	. . .	8
T61	up through 0.124 0.125–1.000			30.0 30.0	... ...	25.0 25.0	... ...	8 10
Alloy 6061^D
O	all		all	. . .	22.0	. . .	16.0	16
T1	up through 0.625		all	26.0	. . .	14.0	. . .	16
T4
T4510^E	all		all	26.0	. . .	16.0	. . .	16
T4511^E
T42^F	all		all	26.0	. . .	12.0	. . .	16
T51	up through 0.625		all	35.0	. . .	30.0	. . .	8
T6, T62^F
T6510^E	up through 0.249		all	38.0	. . .	35.0	. . .	8
T6511^E	0.250 and over		all	38.0	. . .	35.0	. . .	10

Alloy 6063
O	all		all	. . .	19.0	. . .	. . .	18
T1	up through 0.500		all	17.0	. . .	9.0	. . .	12
	0.501–1.000		all	16.0	. . .	8.0	. . .	12

T4, T42^F	up through 0.500		all	19.0	. . .	10.0	. . .	14
	0.501–1.000		all	18.0	. . .	9.0	. . .	14

T5	up through 0.500		all	22.0	. . .	16.0	. . .	8
	0.501–1.000		all	21.0	. . .	15.0	. . .	8

T52	up through 1.000		all	22.0	30.0	16.0	25.0	8
T54	up through 0.124		all	33.0	...	30.0	...	8
	0.125–0.499		all	33.0	...	30.0	...	10
T6, T62^F	up through 0.124		all	30.0	. . .	25.0	. . .	8
	0.125–1.000		all	30.0	. . .	25.0	. . .	10
T65	up through 0.182		all	36.0	. . .	33.0	. . .	8

Alloy 6064
T6^M	0.400-2.000		all	38.0	. . .	35.0	. . .	10
T6511^M	0.400-2.000		all	38.0	. . .	35.0	. . .	10
Alloy 6066
O	all		all		29.0	. . .	18.0	16
T4, T4510, T4511^E	all		all	40.0	. . .	25.0	. . .	14
T42^F	all		all	40.0	. . .	24.0	. . .	14
T6, T6510, T6511^E	all		all	50.0	. . .	45.0	. . .	8
T62^F	all		all	50.0	. . .	42.0	. . .	8
Alloy 6070
T6, T62	up through 2.999		up through 32	48.0	. . .	45.0	. . .	6
Alloy 6082
T6,T6511	0.200–0.750		all	45.0	...	38.0	...	6
	0.751–6.000		all	45.0	....	38.0	....	8
	6.001–8.000		all	41.0	...	35.0	...	6
Alloy 6105
T1	up through 0.500		all	25.0	. . .	15.0	. . .	16
T5	up through 0.124		all	38.0	. . .	35.0	. . .	8
	0.125–1.000		all	38.0	. . .	35.0	. . .	10

Alloy 6162
T5, T5510,^E T5511^E	up thru 1.000		all	37.0	. . .	34.0	. . .	7
T6, T6510,^E T6511^E	up thru 0.249		all	38.0	. . .	35.0	. . .	8
	0.250–0.499		all	38.0	. . .	35.0	. . .	10
Alloy 6262
T6
T6510^E T6511^E	all		all	38.0	. . .	35.0	. . .	10

Alloy 6351
T1	up through 0.499		up through 20	26.0	. . .	13.0	. . .	15
T11	up through 0.749		all	26.0	. . .	16.0	. . .	16
T4	up through 0.749		all	32.0	. . .	19.0	. . .	16
T5	up through 0.249		all	38.0	. . .	35.0	. . .	8
	0.250–1.000		all	38.0	. . .	35.0	. . .	10
T51	0.125–1.000		all	36.0	. . .	33.0	. . .	10
T54	up through 0.500		all	30.0	. . .	20.0	. . .	10
	up through 0.124		all	42.0	. . .	37.0	. . .	8
T6	0.125–0.749		all	42.0	. . .	37.0	. . .	10

Alloy 6360
T5	up through 0.250		all	22.0	. . .	16.0	. . .	8
T6	up through 0.120		all	30.0	. . .	25.0	. . .	8
	0.121–0.250		all	30.0	. . .	25.0	. . .	10

Alloy 6463
T1	up through 0.500		up through 20	17.0	. . .	9.0	. . .	12
T5	up through 0.500		up through 20	22.0	. . .	16.0	. . .	8
T6	up through 0.124		up through 20	30.0	. . .	25.0	. . .	8
	0.125–0.500		up through 20	30.0	. . .	25.0	. . .	10

Alloy 6560
T5	0.090–0.125		all	22.0	...	16.0	...	8
T6	0.090–0.125		all	30.0	...	25.0	...	8

Alloy 7005
T53	up through 0.750		all	50.0	. . .	44.0	. . .	10
Alloy 7075^D
O	all		all	. . .	40.0	. . .	24.0	10
	up through 0.249		all	78.0	. . .	70.0	. . .	7
	0.250–0.499		all	81.0	. . .	73.0	. . .	7
T6, T62^F	0.500–1.499		all	81.0	. . .	72.0	. . .	7
T6510^E	1.500–2.999		all	81.0	. . .	72.0	. . .	7
T6511^E	3.000–4.499		up through 20	81.0	. . .	71.0	. . .	7
			over 20 through 32	78.0	. . .	70.0	. . .	6
	4.500–5.000		up through 32	78.0	. . .	68.0	. . .	6

T73	0.062–0.249		up through 20	68.0	. . .	58.0	. . .	7
T73510^E	0.250–1.499		up through 25	70.0	. . .	61.0	. . .	8
T73511^E	1.500–2.999		up through 25	69.0	. . .	59.0	. . .	8
	3.000–4.499		up through 20	68.0	. . .	57.0	. . .	7
			over 20 through 32	65.0	. . .	55.0	. . .	7

	up through 0.049		all	73.0	. . .	63.0	. . .	7
T76	0.050–0.124		all	74.0	. . .	64.0	. . .	7
T76510^E	0.125–0.249		up through 20	74.0	. . .	64.0	. . .	7
T76511^E	0.250–0.499		up through 20	75.0	. . .	65.0	. . .	7
	0.500–1.000		up through 20	75.0	. . .	65.0	. . .	7
	1.001–2.000		up through 20	75.0	. . .	65.0	. . .	7
	2.001–3.000		up through 20	74.0	. . .	64.0	. . .	7
	3.001–4.000		up through 20	74.0	. . .	63.0	. . .	7

Alloy 7116
T5	0.125–0.500		all	48.0	. . .	42.0	. . .	8
Alloy 7129
T5, T6	up through 0.500		all	55.0	. . .	49.0	. . .	9
Alloy 7178^D
O	all		up through 32	. . .	40.0	. . .	24.0	10

	up through 0.061		up through 20	82.0	. . .	76.0	. . .	. . .

	0.062–0.249		up through 20	84.0	. . .	76.0	. . .	5
T6	0.250–1.499		up through 25	87.0	. . .	78.0	. . .	5
T6510^E	1.500–2.499		up through 25	86.0	. . .	77.0	. . .	5
T6511^E	1.500–2.499		over 25 through 32	84.0	. . .	75.0	. . .	5
	2.500–2.999		up through 32	82.0	. . .	71.0	. . .	5

	up through 0.061		up through 20	79.0	. . .	73.0	. . .	5
	0.062–0.249		up through 20	82.0	. . .	74.0	. . .	5
	0.250–1.499		up through 25	86.0	. . .	77.0	. . .	5
T62^F
	1.500–2.499		up through 25	86.0	. . .	77.0	. . .	5
			over 25 through 32	84.0	. . .	75.0	. . .	5

	2.500–2.999		up through 32	82.0	. . .	71.0	. . .	5

T76	0.125–0.249		up through 20	76.0	. . .	66.0	. . .	7
T76510^E	0.250–0.499		up through 20	77.0	. . .	67.0	. . .	7
T76511^E	0.500–1.000		up through 20	77.0	. . .	67.0	. . .	7

^A The basis for establishment of tensile property limits is shown in Annex A1.

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

^C Elongation of full-section and cut-out sheet-type specimens is measured in 2 in. Elongation of cut-out round specimens is measured in 4× specimen diameter. See 8.1.1 and 8.1.2 for conditions under which measurements are not required.

^D These alloys are also produced in the F temper for which no tensile properties are specified or guaranteed.

^E For stress relieved tempers (T3510, T3511, T4510, T4511, T5510, T5511, T6510, T6511, T73510, T73511, T76510, T76511, T8510, T8511), characteristics and properties other than those specified may differ somewhat from the corresponding characteristics and properties of material in the basic tempers.

^F Material in the T42 and T62 tempers is not available from the material producers.

^G Minimum elongation for tube, 10 %.

^H Minimum yield strength for tube, 48.0 ksi.

^I Minimum yield strength for tube, 46.0 ksi.

^J Yield strength is not applicable in tube.

^K Only in tube form.

^L Properties not applicable to extruded tube over 2.999 in wall thickness.

^M Tentative; properties subject to revision.

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Publisher ASTM

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Pages 15

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Publication date 2013-01-14

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Points 461

File size 113.09 KB

Pages 15

Format PDF

Publication date 2013-01-14

ASTM B221-12

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