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This specification covers aluminum and aluminum-alloy drawn seamless tubes in straight lengths and coils for general purpose. The tube shall be produced by drawing an extruded tube made from hollow extrusion ingot (cast in hollow form or pierced) and extruded by the use of the die and mandrel method. The tubes shall conform to the chemical composition requirements specified. The determination of chemical composition shall be made in accordance with suitable chemical (test methods E 34), or spectrochemical (test methods E 607 and E 1251), methods. The tube shall conform to the tensile property requirements specified. The tension tests shall be made in accordance with test methods B 557M. Flattening test specimens shall be flattened sidewise under a gradually applied load so as to give a uniform radius of bend until the minimum outside diameter under load is not more than F times the wall thickness of the tube as specified. The specimen shall be forced axially with steady pressure over a hardened and polished tapered steel pin having a 74� included angle, to produce a flare having the permanent expanded outside diameter specified. When specified, heat treatment of applicable tempers shall be in accordance with practice B 918. The different methods for leak testing of tubes are presented.

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1.1 This specification covers aluminum and aluminum-alloy drawn seamless tubes in straight lengths and coils for general purpose and pressure applications in alloys (Note 2), tempers, and thicknesses shown in Table 2. Coiled tubes are generally available only as round tubes with a wall thickness not exceeding 0.083 in. and only in nonheat-treatable alloys.

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, A91100 for aluminum designation 1100 in accordance with Practice E527.

Note 1—See Specification B483/B483M for aluminum-alloy drawn tubes for general purpose applications; Specification B234 for aluminum-alloy drawn seamless tubes for condensers and heat exchangers; and Specification B241/B241M for aluminum-alloy seamless pipe and seamless extruded tube.

Note 2—Throughout this specification, use of the term alloy in the general sense includes aluminum as well as aluminum alloy.

1.3 A complete metric companion to Specification B210 has been developedSpecification B210M; therefore, no metric equivalents are presented in this specification.

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

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 1 Chemical Composition Limits^{A, B, C, D}

AlloySiliconIronCopperManganeseMagnesiumChromiumZincTitaniumBismuthLeadOther Elements^EAluminum,
min EachTotal^F 10600.250.350.050.030.03...0.050.030.03^G... 99.60 min^H 1100 0.95 Si + Fe0.05–0.200.05......0.10... 0.050.15 99.00 min^H 20110.400.75.0–6.0.........0.30... 0.20–0.60.20–0.60.050.15remainder 20140.50–1.20.73.9–5.00.40–1.20.20–0.80.100.250.150.050.15remainder 20240.500.503.8–4.90.30–0.91.2–1.80.100.250.150.050.15remainder 30030.60.70.05–0.201.0–1.5......0.10... 0.050.15remainder Alclad 3003^I 31020.400.70.100.05–0.40......0.300.100.050.15remainder Alclad 3102^J 50050.300.70.200.200.50–1.10.100.25... 0.050.15remainder 50500.400.70.200.101.1–1.80.100.25... 0.050.15remainder 50520.250.400.100.102.2–2.80.15–0.350.10... 0.050.15remainder 5083
50860.40
0.400.40
0.500.10
0.100.40–1.0
0.20–0.74.0–4.9
3.5–4.50.05–0.25
0.05–0.250.25
0.250.15
0.150.05
0.050.15
0.15remainder
remainder 51540.250.400.100.103.1–3.90.15–0.350.200.200.050.15remainder 54560.250.400.100.50–1.04.7–5.50.05–0.200.250.200.050.15remainder 60610.40–0.80.70.15–0.400.150.8–1.20.04–0.350.250.150.050.15remainder 60630.20–0.60.350.100.100.45–0.90.100.100.100.050.15remainder 62620.40–0.80.70.15–0.400.150.8–1.20.04–0.140.250.150.40–0.70.40–0.70.050.15remainder 7072 cladding0.7 Si + Fe0.100.100.10...0.8–1.3... 0.050.15remainder 7075^K0.400.501.2–2.00.302.1–2.90.18–0.285.1–6.10.200.050.15remainder

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

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

^C For purposes 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 figures used in expressing the specified limit, in accordance with the rounding-off method of Practice E29.

^D In case of a discrepancy in the values listed in Table 1 with 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” shall be considered the controlling composition. The “Teal Sheets” are available at http://www.aluminum.org/tealsheets.

^E 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 non-conforming.

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

^G Vanadium 0.05 % max.

^H 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.

^I Alloy clad with Alloy 7072.

^J Composition of cladding alloy as applied during the course of manufacture. The samples from finished tube shall not be required to conform to these limits.

^K A Zr +Ti limit of 0.25 percent maximum may be used with this alloy designation for extruded and forged products only, but only when the supplier or producer and the purchaser have mutually so agreed. Agreement may be indicated, for example, by reference to a standard, by letter, by order note, or other means which allow the Zr +Ti limit.

TABLE 2 Tensile Property Limits^A,B

TemperSpecified Wall
Thickness,^C in.Tensile Strength, ksiYield Strength^D
(0.2 % offset),
min, ksiElongation in 2 in. or 4 × Diameter,^E min, % minmaxFull-Section
SpecimenCut-Out
Specimen Aluminum 1060^F O0.014–0.500 8.513.5 2.5...... H1210.0... 4.0...... H1412.0...10.0...... H1816.0...13.0...... H113^G 8.5... 2.5...... Aluminum 1100^F O0.010–0.50011.015.5 3.5...... H1214.0...11.0...... H1416.0...14.0...... H1619.0...17.0...... H1822.0...20.0...... H113^G11.0 3.5 Alloy 2011 T30.018–0.04947.0...40.0...... 0.050–0.50047.0...40.010 8 T45110.018–0.04944.0...25.0...
......
... 0.050–0.25944.0...25.02018 0.260–0.50044.0...25.02020 T80.018–0.50058.0...46.0108 Alloy 2014 O0.018–0.500...32.016.0 max...... T4, T42^H0.018–0.02454.0...30.010... 0.025–0.04954.0...30.01210 0.050–0.25954.0...30.01410 0.260–0.50054.0...30.01612 T6, T62^H0.018–0.02465.0...55.0 7... 0.025–0.04965.0...55.0 7 6 0.050–0.25965.0...55.0 8 7 0.260–0.50065.0...55.0 9 8 Alloy 2024 O0.018–0.500...32.015.0 max...... T30.018–0.02464.0...42.010... 0.025–0.04964.0...42.01210 0.050–0.25964.0...42.01410 0.260–0.50064.0...42.01612 T42^H0.018–0.02464.0...40.010... 0.025–0.04964.0...40.01210 0.050–0.25964.0...40.01410 0.260–0.50064.0...40.01612 Alloy 3003^F O0.010–0.02414.019.0 5.0...... 0.025–0.04914.019.0 5.03020 0.050–0.25914.019.0 5.03525 0.260–0.50014.019.0 5.0...30 H120.010–0.50017.0...12.0...... H140.010–0.02420.0...17.0 3... 0.025–0.04920.0...17.0 5 3 0.050–0.25920.0...17.0 8 4 0.260–0.50020.0...17.0...... H160.010–0.02424.0...21.0...... 0.025–0.04924.0...21.0 3 2 0.050–0.25924.0...21.0 5 4 0.260–0.50024.0...21.0...... H180.010–0.02427.0...24.0 2... 0.025–0.04927.0...24.0 3 2 0.050–0.25927.0...24.0 5 3 0.260–0.50027.0...24.0...... H113^G0.010–0.50014.0... 5.0...... Alloy Alclad 3003^F O0.010–0.02413.019.0 4.5...... 0.025–0.04913.019.0 4.53020 0.050–0.25913.019.0 4.53525 0.260–0.50013.019.0 4.5...30 H140.010–0.02419.0...16.0...... 0.025–0.04919.0...16.0 5 3 0.050–0.25919.0...16.0 8 4 0.260–0.50019.0...16.0...... H180.010–0.50026.0...23.0...... H113^G0.010–0.50013.0... 4.5...... Alloy 3102^F O0.018–0.04912.017.0 4.030^I20^I 0.050–0.06512.017.0 4.03525 Alloy Alclad 3102^F O0.018–0.04910.017.0 3.530^I20^I
25 0.050–0.06510.017.0 3.535 Alloy 5005^F O0.018–0.50015.021.0 5.0...... Alloy 5050^F O0.010–0.50018.024.0 6.0...... H320.010–0.50022.0...16.0...... H340.010–0.50025.0...20.0...... H360.010–0.50027.0...22.0...... H380.010–0.50029.0...24.0...... Alloy 5052^F O0.010–0.45025.035.010.0...... H320.010–0.45031.0...23.0...... H340.010–0.45034.0...26.0...... H360.010–0.45037.0...29.0...... H380.010–0.45039.0...24.0...... Alloy 5083^F O0.018–0.45039.051.016.0...14 Alloy 5086^F O0.010–0.45035.046.014.0...... H320.010–0.45040.0...28.0...... H340.010–0.45044.0...34.0...... H360.010–0.45047.0...38.0...... Alloy 5154^F O0.010–0.50030.041.011.01010 H340.010–0.50039.0...29.0 5 5 H380.010–0.25045.0...34.0...... Alloy 5456^F O0.018–0.45041.053.019.0...14 Alloy 6061 O0.018–0.500...22.014.0 max1515 T40.025–0.04930.0...16.01614 0.050–0.25930.016.01816 0.260–0.50030.0...16.02018 T42^H0.025–0.04930.0...14.01614 0.050–0.25930.0...14.01816 0.260–0.50030.0...14.02018 T6, T62^H0.025–0.04942.0...35.010 8 0.050–0.25942.0...35.01210 0.260–0.50042.0...35.01412 Alloy 6063 O0.018–0.500...19.0......... T4, T42^H0.025–0.04922.0...10.01614 0.050–0.25922.0...10.01816 0.260–0.50022.0...10.02018 T6, T62^H0.025–0.04933.0...28.012 8 0.050–0.25933.0...28.01410 0.260–0.50033.0...28.01612 T830.025–0.25933.0...30.0 5... T8310.025–0.25928.0...25.0 5... T8320.025–0.04941.0...36.0 8 5 0.050–0.25940.0...35.0 8 5 Alloy 6262 T6, T62^H0.025–0.04942.0...35.010 8 0.050–0.25942.0...35.01210 0.260–0.50042.0...35.01412 T90.025–0.37548.0...44.0 5 4 Alloy 7075 O0.025–0.049...40.021.0 max^J10 8 0.050–0.500...40.021.0 max^J1210 T6, T62^H0.025–0.25977.0...66.0 8 7 0.260–0.50077.0...66.0 9 8 T73^K0.025–0.25966.0...56.010 8 0.260–0.50066.0...56.01210

^A See Annex A1.

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

^C Coiled tube is generally available with a maximum wall thickness of 0.083 in. and only in nonheat-treatable alloys.

^D Yield strength to be determined only on straight tube.

^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 In this alloy tube other than round is produced only in the F (as drawn) and O tempers. Properties for F temper are not specified or guaranteed.

^G Beginning with the 1982 issue the requirements for the H112 tempers were replaced by the H113 temper, applicable to other than round tube, which is fabricated by cold-forming annealed round tube and acquires some temper in this forming operation.

^H Material in the T42 or T62 tempers is not available from the material producers.

^I For specified wall thickness under 0.025 in., elongation is not required.

^J Applicable only to round tube. The maximum yield strength for other-than-round tube shall be negotiated.

^K Material in this temper exhibits improved resistance to stress corrosion compared to that of the T6 temper. The stress-corrosion resistance capability of individual lots is determined by testing the previously selected tension-test samples in accordance with the applicable electrical conductivity acceptance criteria of Table 3.

TABLE 3 Lot Acceptance Criteria for Resistance to Stress-Corrosion

Alloy and TemperLot Acceptance CriteriaLot Acceptance Status Electrical Conductivity, ^{A, B} %
IACSLevel of Mechanical Properties 7075–T7340.0 or greater per specified requirements acceptable 38.0 through 39.9per specified requirements and yield strength does not exceed minimum by more than 11.9 ksi acceptable 38.0 through 39.9per specified requirements but yield strength exceeds minimum by 12.0 ksi or more unacceptable^C less than 38.0 any level unacceptable^{C A} The electrical conductivity shall be determined in accordance with Practice E1004 in the locations noted below. ^B For curved surfaces, the conductivity shall be measured on a machined flat spot; however, for small size tubes, a cut-out piece may be flattened and the conductivity determined. ^C When material is found to be unacceptable, it shall be reprocessed (additional precipitation heat treatment or resolution heat treatment and precipitation heat treatment). Wall Thickness, in.Location up through 0.100surface of tensile sample 0.101 and oversubsurface after removal of
approximately 10 % of thickness.