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This specification covers aluminum and aluminum-alloy seamless pipe and seamless extruded tube for gas and oil transmission and distribution piping systems. The pipe and tube shall be produced from hollow extrusion ingot (cast in hollow form or pierced) and shall be extruded by use of the die and mandrel method. The pipe and tube 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 227, E 607, and E 1251) methods. Heat treatment for the production of T1 and T5-type tempers shall be in accordance with Practice B 807, and for the production of T4 and T6-type tempers, except as noted, shall be in accordance with practice B 918. Unless otherwise specified, alloys 6061, 6063, and 6351 may be solution heat treated and quenched at the extrusion press in accordance with practice B 807 for the production of T4 and T6-type tempers, as applicable. The material shall conform to the tensile property requirements specified. The tension tests shall be made in accordance with test methods B 557 and B 557M. Pipe and tube heat treated at the extrusion press shall conform to all requirements specified.1.1 This specification covers seamless pipe and seamless extruded tube in the aluminum and aluminum alloys (Note 1) and tempers listed in Table 1 and Table 2, respectively. Seamless pipe and seamless tube are intended for use in applications involving internal pressure.Note 1—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.Note 2—For drawn seamless tubes, see Specifications B210 and B210M; for extruded tubes, Specifications B221 and B221M; for drawn seamless tubes for condensers and heat exchangers, Specifications B234 and B234M; for seamless pipe and seamless extruded tube, B241/B241M; for round welded tubes, Specification B313/B313M; for seamless condenser and heat exchanger tubes with integral fins, Specification ; for extruded structural pipe and tube, Specification B429/B429M; and for drawn tube for general purpose applications, Specification B483/B483M.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 3 preceded by A9, for example, A93003 for aluminum alloy 3003 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 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.TABLE 1 Tensile Property Limits for Extruded Seamless PipeA,BAlloy Temper Pipe Size,in. Strength, min, ksi [MPa] ElongationC,DTensile Yield (0.2 % Offset) in 2 in. [50 mm] or 4×Diameter, min, % in 5 × D(5.65)3003 H18 under 1 27.0 [185] 24.0 [165] 4 4 H112 1 and over 14.0 [95] 5.0 [35] 25 226061 T6 under 1 38.0 [260] 35.0 [240] 8 ... 1 and over 38.0 [260] 35.0 [240] 10E 96063 T6 all 30.0 [205] 25.0 [170] 8 76351 T5T6 allall 38.0 [260]42.0 [290] 35.0 [240]37.0 [255] 10E10F 99A The basis for establishment of mechanical property limits is given in Annex A1 of this specification.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 [MPa] and each value for elongation to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.C Elongation of full-section and sheet-type specimens is measured in 2 in.; of cut-out round specimens, 4× specimen diameter.D Elongations in 50 mm apply for pipe tested in full sections and for sheet-type specimens machined from material up through 12.5 mm in thickness having parallel surfaces. Elongations in 5 × D (at 5.65), where D and A are diameter and cross-sectional area of the specimen, respectively, apply to round test specimens machined from thicknesses over 6.30 mm.E The minimum elongation for a wall thickness up through 0.249 in. [6.3 mm] is 8 %.F For wall thickness 0.124 in. [3.20 mm] and less, the minimum elongation is 8 %.TABLE 2 Tensile Property Limits for Extruded Seamless TubeA,BTemper Specified WallThickness, in. [mm] Area, in.2 [mm2] Tensile Strength, ksi [MPa] Yield Strength(0.2 % offset)ksi [MPa], min ElongationC,Dmin max in 2 in. [50 mm] or4 × D min,% in 5 × D(5.65)EAluminum 1060FOH112 allall allall 8.5 [60]8.5 [60] 14.0 [95]... [...] 2.5 [15]2.5 [15] 2525G 2222GAlloy 3003FOH112 allall allall 14.0 [95]14.0 [95] 19.0 [130]... [...] 5.0 [35]5.0 [35] 2525 2222Alloy Alclad 3003FOH112 allall allall 13.0 [90]13.0 [90] 18.0 [125]... [...] 4.5 [30]4.5 [30] 2525 2222Alloy 5083FOH111H112 all [130.00]all [130.00]all [130.00] up through 32.0 [20 000]up through 32.0 [20 000]up through 32.0 [20 000] 39.0 [270]40.0 [275]39.0 [270] 51.0 [350]... [...]... [...] 16.0 [110]24.0 [165]16.0 [110] 141212 121010Alloy 5086FOH111H112 all [130.00]all [130.00]all [130.00] up through 32.0 [20 000]up through 32.0 [20 000]up through 32.0 [20 000] 35.0 [240]36.0 [250]35.0 [240] 46.0 [315]... [...]... [...] 14.0 [95]21.0 [145]14.0 [95] 141212 121010Alloy 6061FOH all all ... [...] 22.0 [150] 16.0I [...] 16 14T1 [16.00] all [180] ... [...] [95] 16 14 all all 26.0 [180] ... [...] 16.0 [110] 16 14T42J all all 26.0 [180] ... [...] 12.0 [85] 16 14T51 [16.00] all [240] ... [...] [205] 8 7 up through 0.249 [6.30]0.250 and over [6.30] allall 38.0 [260]38.0 [260] ... [...]... [...] 35.0 [240]35.0 [240] 810 ...9Alloy 6063FOHT1K allup through 0.500 [12.50]0.501–1.000 [12.50–25.00] ... [all]allall ... [...]17.0 [115]16.0 [110] 19.0 [130]... [...]... [...] ... [...]9.0 [60]8.0 [55] 181212 [...] 161010T4, T42L up through 0.500 [12.50] all 19.0 [130] ... [...] 10.0 [70] 14 12 0.501–1.000 [12.50–25.00] all 18.0 [125] ... [...] 9.0 [60] 14 [...] 12T5 up through 0.500 [12.50] all 22.0 [150] ... [...] 16.0 [110] 8 7 0.501–1.000 [12.50–25.0] all 21.0 [145] ... [...] 15.0 [105] 8 [...] 7T52 up through 1.000 [25.00] all 22.0 [150] 30.0 [205] 16.0M [110] 8 7T6, T62L up through 0.124 [3.20] all 30.0 [205] ... [...] 25.0 [170] 8 ... 0.125–1.000 [3.20–25.00] all 30.0 [205] ... [...] 25.0 [170] 10 7Alloy 6070FT6, T62L up through 2.999 up through 32 48.0 [330] ... [...] 45.0 [310] 6 5Alloy 6351FT4T6 allup through 0.1240.125–0.749 all...... 32.0 [220]42.0 [290]42.0 [290] ... [...]... [...]... [...] 19.0 [130]37.0 [255]37.0 [255] 16810 14...9A The basis of establishment of mechanical property limits is given in Annex A1 of this specification.B To determine conformance to this specification, each value for ultimate tensile strength and for yield strength shall be rounded to the nearest 0.1 ksi [MPa] and each value for elongation to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.C Elongation of full-section and sheet-type specimens is measured in 2 in.; of cut-out round specimens, in 4× specimen diameter.D For material of such dimensions that a standard test specimen cannot be taken, or for material thinner than 0.062 in., the test for elongation is not required.E Elongations in 50 mm apply for tube tested in full section and for sheet-type specimens machined from material up through 12.5 mm in thickness having parallel surfaces. Elongations in 5× diameter (5.65), where D and A are diameter and cross-sectional area of the specimen, respectively, apply to round test specimens machined from thickness over 6.30 mm. For tube of such dimensions that a standard test specimen cannot be taken, the test for elongation is not required.F These alloys are also produced in the F temper, for which no mechanical properties are specified.G Maximum tensile strength and minimum elongation apply to tubes having diameters from 1.000 in. to 4.500 in. and wall thickness from 0.050 in. to 0.169 in. only. Minimum elongation applies to tubes having diameters from 25.00 to 115.00 mm and wall thickness over 1.30 through 4.30 mm only.H Upon heat treatment, annealed (0 temper) material shall be capable of developing the mechanical properties applicable to T42 temper material, and upon solution and precipitation heat treatment shall be capable of developing the mechanical properties applicable to T62 temper material.I Yield strength is maximum [110 MPa] max.J For stress-relieved tempers (T4510, T4511, T6510 and T6511) characteristics and properties other than those specified may differ somewhat from the corresponding characteristics and properties of material in the basic temper.K Formerly designated T42 temper. Properly aged precipitation heat-treated 6063-T1 extruded products are designated T5.L While material in the T42 and T62 tempers is not available from the material producer, the properties are listed to indicate those which can usually be obtained by the user when the material is properly solution heat treated or solution and precipitation heat treated from the O (annealed) or F (as-fabricated) tempers. These properties apply when samples of material supplied in the O or F temper are heat treated by the producer to the T42 or T62 tempers to determine that the material will respond to proper thermal treatment. Properties attained by the user, however, may be lower than those listed if the material has been formed or otherwise cold or hot worked, particularly in the annealed temper, prior to solution heat treatment.M Maximum yield strength is 25.0 ksi [170 MPa].TABLE 3 Chemical CompositionA,B,CAlloy Composition, %Silicon Iron Copper Manganese Magnesium Chromium Zinc Vanadium Titanium Other ElementsD AluminumEach TotalE10603003 0.250.6 0.350.7 0.050.05–0.20 0.031.0–1.5 0.03... ...... 0.050.10 0.05... 0.03... 0.030.05 ...0.15 99.60 minFremainderAlclad 3003 3003 alloy clad inside or outside with 7072 alloy5083 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 remainder5086 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 remainder6061G 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 remainder6063 0.20–0.6 0.35 0.10 0.10 0.45–0.9 0.10 0.10 ... 0.10 0.05 0.15 remainder6070 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 remainder6351 0.7–1.3 0.50 0.10 0.40–0.8 0.40–0.8 ... 0.20 ... 0.20 0.05 0.15 remainder7072H 0.7 Si + Fe 0.10 0.10 0.10 ... 0.8–1.3 ... ... 0.05 0.15 remainderA Limits are in 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 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 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 non-conforming.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 In 1965 the requirements for Alloy 6062 were combined with those of Alloy 6061 by revision of the minimum chromium content from 0.15 to 0.04. For this reason, Alloy 6062 was cancelled.H Composition of cladding alloy as applied during the course of manufacture. The sample from finished tube shall not be required to conform to these limits.

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