ASTM B241 Chemical and Mechanical Properties for Extruded Seamless Tube and Pipe

Alfiniti extrudes seamless aluminum tube and pipe to ASTM B241 and takes it through cutting, forming, machining, joining and finishing in house.

The specification covers 1060, 1100, 3003, Alclad 3003, 6005, 6005-A, 6061, 6063 and 6082 in the tempers listed below, with separate property tables for pipe and for extruded tube.

Alloy and temper designations are in compliance with the latest version of ANSI H35.1.

Tolerances for the tubes we supply are shown in the tolerance tables and are in compliance with the latest revision of ANSI H35.2 and Aluminum Standards and Data.

Every table is reproduced in full below, in both inch and pound and SI units. Tighter OD control, thinner wall or better straightness than the extruded numbers means cold drawing rather than extrusion.

Alfiniti, Inc. is the largest aluminum manufacturer in North America.


Chemical Composition Limits

AlloySiliconIronCopper ManganeseMagnesiumChromiumZinc TitaniumBiLeadTin Other elements,
each
Other elements,
total
Aluminum
10600.250.350.050.030.03. . .0.050.03. . .. . .. . .0.03. . .99.60 min
11000.95 Si + Fe0.05-0.200.05. . .. . .0.10. . .. . .. . .. . .0.050.1599.00 min
30030.60.70.05-0.201.0-1.5. . .. . .0.10. . .. . .. . .. . .0.050.15remainder
Alclad 3003. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .
60050.6-0.90.350.100.10.40-0.60.100.100.10. . .. . .. . .0.050.15remainder
6005-A0.50-0.90.350.300.50.40-0.70.300.200.10. . .. . .. . .0.050.15remainder
60610.40-0.80.70.15-0.400.150.8-1.20.04-0.350.250.15. . .. . .. . .0.050.15remainder
60630.20-0.60.350.100.100.45-0.90.100.100.10. . .. . .. . .0.050.15remainder
60820.7-1.30.500.100.40-1.00.6-1.20.250.200.10. . .. . .. . .0.050.15remainder
Questions about extruded seamless tube and pipe to ASTM B241?

Tensile Property Limits for Pipe, Inch and Pound Units

AlloyTemperPipe size, in Tensile strength,
min, ksi
Yield strength
(0.2% offset), min, ksi
Elongation in 2 in.
or 4x diameter, min, %
3003H18Under 127.024.04
H1121 and over14.05.025
6005T1All25.015.016
T5All38.035.08
6005-AT1All25.014.515
T5All38.031.07
T61Under 0.25038.035.08
T610.250-1.00038.035.010
6061T6 (Extruded)Under 138.035.08
T6 (Extruded)1 and over38.035.010
6063T6All30.025.08
6082T7All45.038.08

Tensile Property Limits for Pipe, SI Units

AlloyTemper
(product)
Pipe size, mm Tensile strength,
min, MPa
Yield strength
(0.2% offset), min, MPa
Elongation min, %
in 50 mmin 5x diameter
3003H18Under 251851654. . .
H11225 and over95352522
6005T1All1701051614
T5All2602408
6005-AT1All17010015
T5All26021576
T61All2602408
6061T6 (Extruded)Under 252602408. . .
T6 (Extruded)25 and over260240109
6063T6All20517087
6082T6All310260108

Tensile Property Limits for Extruded Tube, Inch and Pound Units

Temper Specified section or
wall thickness, in.
Area, in2 Tensile strength, ksi Yield strength (0.2% offset), ksi Elongation in 2 in.
or 4x diameter, min, %
MinMaxMinMax
Aluminum 1060
Oallall8.514.02.5. . .25
H112allall8.5. . .2.5. . .25
Fallall. . .. . .. . .. . .. . .
Aluminum 1100
Oallall11.015.53. . .25
H112allall11.0. . .3. . .25
Fallall. . .. . .. . .. . .. . .
Alloy 3003
Oallall14.019.05.0. . .25
H112allall14.0. . .5.0. . .25
Fallall. . .. . .. . .. . .. . .
Alclad Alloy 3003
Oallall13.018.04.5. . .25
H112allall13.0. . .4.5. . .25
Fallall. . .. . .. . .. . .. . .
Alloy 6005
T1up thru 0.500all25.015.016
T5up thru 0.124all38.035.08
T50.125-1.000all38.035.010
Alloy 6005-A
T1up thru 0.249all25.014.515
T5up thru 0.249all38.031.07
T50.250-0.999all38.031.09
T61up thru 0.249all38.035.08
T610.250-1.000all38.035.010
Alloy 6061
Oallall. . .22.00. . .16.016
T1up thru 0.625all26.0. . .14.0. . .16
T4, T4510, T4511allall26.0. . .16.0. . .16
T42allall26.0. . .12.0. . .16
T51up thru 0.625all35.0. . .30.0. . .8
T6, T62, T6510, T6511up thru 0.249all38.0. . .35.0. . .8
T6, T62, T6510, T65110.250 and overall38.0. . .35.0. . .10
Fallall. . .. . .. . .. . .. . .
Alloy 6063
Oallall. . .19.0. . .. . .18
T1up thru 0.500all17.0. . .9.0. . .12
T10.501-1.000all16.0. . .8.0. . .12
T4, T42up thru 0.500all19.0. . .10.0. . .14
T4, T420.501-1.000all18.0. . .9.0. . .14
T5up thru 0.500all22.0. . .16.0. . .8
T50.501-1.000all21.0. . .15.0. . .8
T52up thru 1.000all22.030.016.025.08
T6, T62up thru 0.124all30.0. . .25.0. . .8
T6, T620.125-1.000all30.0. . .25.0. . .10
Fallall. . .. . .. . .. . .. . .
Alloy 6082
T60.200-1.000all45388

Tensile Property Limits for Extruded Tube, SI Units

Temper Specified section or
wall thickness, mm
Area, mm2 Tensile strength, MPa Yield strength (0.2% offset), MPa Elongation, % min
overthrough overthrough minmax minmax in 50 mmin 5x diameter
Aluminum 1060
Oallall609515. . .2522
H112allall60. . .15. . .2522
Fallall. . .. . .. . .. . .. . .. . .
Aluminum 1100
Oallall7510520. . .2522
H112allall75. . .20. . .2522
Fallall. . .. . .. . .. . .. . .. . .. . .
Alloy 3003
Oall. . .all9513035. . .2522
H112all. . .all95. . .35. . .2522
Fallall. . .. . .. . .. . .. . .. . .. . .
Alclad Alloy 3003
Oallall9012530. . .2522
H112allall90. . .30. . .2522
Fallall. . .. . .. . .. . .. . .. . .. . .
Alloy 6005
T1. . .12.50all170. . .105. . .1614
T5. . .3.20260. . .240. . .8. . .
T53.2025.00260. . .240. . .109
Alloy 6005-A
T1. . .6.30all170. . .100. . .15
T5. . .6.30all260. . .215. . .7
T56.3025.00all260. . .215. . .98
T61. . .6.30all260. . .240. . .8
T616.3025.00all260. . .240. . .109
Alloy 6061
Oallall. . .150. . .1101614
T1. . .16.00all180. . .95. . .1614
T4, T4510, T4511allall180. . .110. . .1614
T42allall180. . .85. . .1614
T51. . .16.00all240. . .205. . .87
T6, T62. . .6.30all260. . .240. . .8. . .
T6510, T65116.30. . .all260. . .240. . .109
Fallall. . .. . .. . .. . .. . .. . .
Alloy 6063
Oallall. . .130. . .. . .1816
T1. . .12.50all. . .115. . .60. . .1210
T112.5025.00all. . .110. . .55. . .. . .10
T4, T42. . .12.50all130. . .70. . .1412
T4, T4212.5025.00all125. . .60. . .. . .12
T5. . .12.50all150. . .110. . .87
T512.5025.00all145. . .105. . .. . .7
T52. . .25.00all15020511017087
T6. . .3.20all205. . .170. . .8. . .
T63.2025.00all205205170. . .109
Fallall. . .. . .. . .. . .. . .. . .
Alloy 6082
T65.0025.00310260810

Blank cells are blank in the source data sheet. Three dots mean no requirement is specified.

Where to Get the Full Standards

  • A complete copy of this specification may be purchased at www.ASTM.org
  • A copy of ANSI H35.1 and H35.2 is available from the American National Standards Institute at www.ansi.org
  • A copy of the Aluminum Standards and Data is available from the Aluminum Association at www.aluminum.org

Why it matters:
Pipe and extruded tube are not the same thing under this specification, and they carry different property tables. Pipe is called out by nominal size, tube by section or wall thickness. Specify which one you need or the numbers on the certificate will not be the numbers you expected.

Alloy sets the ceiling. 6082-T6 carries 45.0 ksi minimum tensile, 6061 in the T6 family carries 38.0 ksi, and 3003-H112 carries 14.0 ksi with 25 percent elongation. Strength and formability move in opposite directions across that range.

Wall thickness changes elongation, not strength, in most of the 6000 series tempers here. Thin wall 6061-T6 extruded tube holds 8 percent elongation, and the same material at 0.250 inch and over holds 10 percent.

Alfiniti can help:
Tell us the alloy, temper and size you need in extruded tube or pipe. We extrude the material, hold the specification, and handle secondary operations in house so one source covers material and fabrication.


Need to know about aluminum alloy products?

Check out our Aluminum Mill Specifications by Alloys page for a list of all of the alloy products and their key characteristics.