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    ASTM B241/B241M-12

    Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube

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    1. Scope

    1.1 This specification2 covers aluminum and aluminum–alloy seamless pipe in the alloys (Note 1) and tempers shown in Table 1 [Table 2] and seamless extruded round tube in the alloys and tempers shown in Table 3 [Table 4] intended for pressure applications. The standard sizes for seamless pipe are listed in Table 16.7 of ANSI H35.2 and H35.2M. Nonstandard alloys, tempers, and sizes of pipe are produced as seamless extruded tube.

    TABLE 1 Tensile Property Limits for Pipe, Inch-Pound UnitsA,B

    Alloy

    Temper

    Pipe Size,
    in.

    Tensile Strength,
    min, ksi

    Yield Strength
    (0.2 % Offset),
    min, ksi

    Elongation in
    2 in. or 4 × 
    Diameter, min, %C

    3003

    H18

    Under 1

    27.0

    24.0

     4

     

    H112

    1 and over

    14.0

     5.0

    25

    6005

     T1

    All

    25.0

    15.0

    16

     

     T5

    All

    38.0

    35.0

    8

    6005A

     T1

    All

    25.0

    14.5

    15

     

     T5

    All

    38.0

    31.0

    7

     

     T61

    Under 0.250

    38.0

    35.0

    8

     

     

    0.250-1.000

    38.0

    35.0

    10


    6041

    T6

    All

    45.0

    40.0

    10

    6042

    T5, T5511

    All

    38.0

    35.0

    10

    6061

    T6 (Extruded)

    Under 1

    38.0 

    35.0

     8

     

     

    1 and over

    38.0

    35.0

    10D

     

    T6 (Drawn)

    Under 1

    42.0

    35.0

      8E

     

     

    1 and over

    38.0

    35.0

     10F

    6063

    T6

    All

    30.0

    25.0

     8

    6064

    T6

    All

    42.0

    38.0

    10

    6082

    T6

    All

    45.0

    38.0

    8

    6105

    T1

    All

    25.0

    15.0

    16

     

    T5

    All

    38.0

    35.0

    8

    6262

    T6

    All

    38.0

    35.0

    10

    6351

    T5

    All

    38.0

    35.0

    10D

     

    T6

    All

    42.0

    37.0

    10G

    A The basis for establishment of tensile property limits is shown in Annex A1.
    B For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to the nearest 0.1 ksi, and each value for elongation shall be rounded to the nearest 0.5 %, both 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.; of round specimens, in 4 × specimen diameter.
    D For wall thicknesses less than 0.250 in., the minimum elongation is 8 %.
    E For wall thickness 0.050 to 0.259 in., the minimum elongation is 10 %.
    F For wall thickness 0.260 to 0.500 in., the minimum elongation is 12 %.
    G For wall thickness less than 0.125 in., the minimum elongation is 8 %.
    TABLE 2 Tensile Property Limits for Pipe [SI Units]A ,B

    Alloy

    Temper
    (Product)

    Pipe Size, Designation

    Tensile Strength,
    min, MPa

    Yield Strength
    (0.2 % Offset),
    min, MPa

    Elongation,C min, %

    in 50 mm

    in 5 × Diameter

    Equation B0241_B0241M-12_1

    3003

    H18

    Under 1

    185

    165

     4

    ...

     

    H112

    1 and over

     95

     35

    25

    22

    6005

    T1

    All

    170

    105

    16

    14

     

    T5

    All

    260

    240

    8

     

    6005A

    T1

    All

    170

    100

    15

     

     

    T5

    All

    260

    215

    7

    6

     

    T61

    All

    260

    240

    8

     

    6041

    T6

    All

    310

    275

    10

    9

    6042

    T5, T5511

    All

    260

    240

    10

    9

    6061

    T6 (Extruded)

    Under 1

    260

    240

     8

    ...

     

     

    1 and over

    260

    240

    10D

    9

     

    T6 (Drawn)

    Under 1

    290

    240

      8E

    ...

     

     

    1 and over

    260

    240

    10F

    9

    6063

    T6

    All

    205

    170

     8

    7

    6064

    T6

    All

    290

    260

    10

    9

    6082

    T6

    All

    310

    260

    10

    8

    6105

    T5

    All

    260

    240

    8

    7

     

    T6

    All

    290

    255

    10

    9

    6262

    T6

    All

    260

    240

    10

    9

    6351

    T5

    All

    260

    240

    10D

    9

     

    T6

    All

    290

    255

    10G

    9

    A The basis for establishment of mechanical property limits is shown in Annex A1.
    B For purposes of determining conformance with this specification, each value for ultimate strength and yield strength shall be rounded to the nearest 1 MPa, and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding-off method of Practice E29.
    C Elongations in 50 mm apply for pipe tested in full-section and to sheet type specimens taken from pipes having a wall up to 12.50 mm thick. Elongations in 5D

    Equation B0241_B0241M-12_2
    where D and A are diameter and cross-sectional area of the specimens respectively, apply to round test specimens machined from wall thicknesses over 6.30 mm.
    D For wall thicknesses up through 6.30 mm the minimum elongation is 8 %.
    E For wall thicknesses over 1.25 through 6.60 mm, the minimum elongation is 10 %.
    F For wall thicknesses over 6.60 through 12.50 mm, the minimum elongation is 12 %.
    G For wall thicknesses up through 3.20 mm the minimum elongation is 8 %.
    TABLE 3 Tensile Property Limits for Extruded Tube, Inch-Pound UnitsA,B

     

    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

    O

     

     

    all

    all

    8.5

    14.0

    2.5

    . . .

    25

    H112

     

     

    all

    all

    8.5

    . . .

    2.5

    . . .

    25

    FD

     

     

    all

    all

    . . .

    . . .

    . . .

    . . .

    . . .

    Aluminum 1100

    O

     

     

    all

    all

    11.0

    15.5

    3.0

    . . .

    25

    H112

     

     

    all

    all

    11.0

    . . .

    3.0

    . . .

    25

    FD

     

     

    all

    all

    . . .

    . . .

    .


    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)

    B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

    B221M Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)

    B234 Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes for Condensers and Heat Exchangers

    B234M Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes for Condensers and Heat Exchangers (Metric)

    B429/B429M Specification for Aluminum-Alloy Extruded Structural Pipe and Tube

    B483/B483M Specification for Aluminum and Aluminum-Alloy Drawn Tube and Drawn 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)

    B594 Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products

    B647 Test Method for Indentation Hardness of Aluminum Alloys by Means of a Webster Hardness Gage

    B648 Test Method for Indentation Hardness of Aluminum Alloys by Means of a Barcol Impressor

    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

    B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for Compositional Analysis

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    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 and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spectrochemical Analysis

    E1004 Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy-Current) Method

    E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry

    G47 Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products

    ANSI Standards

    B36.10

    H35.1/H35.1(M)

    H35.2 Dimensional Tolerances for Aluminum Mill Products

    American Welding Society Standard

    D10.7 Recommended Practices for Gas Shielded Arc Welding of Aluminumnd Aluminum-Alloy Pipe

    Federal Standard

    Fed. Std. No. 123 Marking for Shipment (Civil Agencies) Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://dodssp.daps.dla.mil.

    Military Standard

    MIL-STD-129 Marking for Shipment and Storage

    AMS Specification

    AMS 2772

    CEN EN Standards

    CEN EN 14242 Aluminum and Aluminum Alloys--Chemical Analysis--Inductively Coupled Plasma Optical Emission Spectral Analysis Available from European Committee for Standardization (CEN), 36 Rue de Stassart, B-1050, Brussels, Belgium, http://www.cenorm.be.

    ICS Code

    ICS Number Code 77.150.10 (Aluminium products)

    UNSPSC Code

    UNSPSC Code 40182200(Seamless aluminum tubes); 40182700(Extruded aluminum tubes)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0241_B0241M-12

    Citation Format

    ASTM B241 / B241M-12, Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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