ASTM B234M-17

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B234M − 10 B234M − 17
Standard Specification for
Aluminum and Aluminum-Alloy Drawn Seamless Tubes for
Condensers Surface Condensers, Evaporators, and Heat
Exchangers (Metric)
This standard is issued under the fixed designation B234M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers aluminum-alloy (Note 1) drawn seamless round tube in straight lengths designated as shown in
the Table 2, for use in surface condensers, evaporators, and heat exchangers.
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 used in general applications, see Specifications B210 and B210M; for extruded tubes see Specifications B221 and
B221M; for seamless pipe and seamless extruded tube used in pressure applications, see Specification B241/B241M; and for structural pipe and tube see
Specification B429/B429M.
1.2 Alloy and temper designations are in accordance with ANSI H35.1M. The equivalent Unified Numbering System alloy
designations are those of Table 1 preceded by E215, for example, A91060 for aluminum 1060, in accordance with Practice E527.
1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see A1.1.1Annex A1.
1.4 This specification is the SI companion to Specification B234.
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.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
2,3
2.2 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)
B241/B241M Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube
B429/B429M Specification for Aluminum-Alloy Extruded Structural Pipe and Tube
B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on Aluminum
Alloy Wrought Products.
Current edition approved Nov. 1, 2010Oct. 1, 2017. Published December 2010October 2017. Originally approved in 1982. Last previous edition approved in 20042010
as B234M – 04.B234M – 10. DOI: 10.1520/B0234M-10.10.1520/B0234M-17.
For ASME Boiler and Pressure Vessel Code applications see related SB-234 in Section ll of that code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B234M − 17
A,B,C,I
TABLE 1 Chemical Composition Limits
D
Other Elements
Aluminum,
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium
E
min
Each Total
D
Other Elements Aluminum,
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium
E
Each Total min
F,G
1060 0.25 0.35 0.05 0.03 0.03 . . . 0.05 0.03 0.03 . . . 99.60
F G
1060 0.25 0.35 0.05 0.03 0.03 . 0.05 0.03 .
0.03 99.60
0.05 remainder
3003 0.6 0.7 0.05–0.20 1.0–1.5 . . 0.10 . 0.15
. . .
3003 0.6 0.7 0.05–0.20 1.0–1.5 0.10 0.05 0.15 remainder
. . . . . .
Alclad
3003 alloy clad with 7072 alloy
5052 0.25 0.40 0.10 0.10 2.2–2.8 0.15–0.35 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
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
6061 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
6061 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
H
7072 0.07 Si + Fe 0.10 0.10 0.10 . 0.8–1.3 . 0.05 0.15 remainder
H
7072 0.07 Si + Fe 0.10 0.10 0.10 . . . 0.8–1.3 . . . 0.05 0.15 remainder
A
Limits are in 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 attained 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
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 this 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 Elements—Total shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.
F
Vanadium 0.05 max.
G
The aluminum content shall be calculated by subtracting from 100.00 % the sum of all the metallic elements present in amounts of 0.010 % or more, rounded to the
second decimal before determining the sum.
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.
I
In case there is 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.
B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B918 Practice for Heat Treatment of Wrought Aluminum Alloys
B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for
Compositional Analysis
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 (Withdrawn 2017)
E215 Practice for Standardizing Equipment and Electromagnetic Examination of Seamless Aluminum-Alloy Tube
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 (Withdrawn 2011)
E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical
Composition by Spark Atomic Emission Spectrometry
E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
E3061 Test Method for Analysis of Aluminum and Aluminum Alloys by Inductively Coupled Plasma Atomic Emission
Spectrometry (Performance Based Method)
2.3 ANSI Standards:
H35.1/H35.1(M) Alloy and Temper Designation Systems for Aluminum
H35.2(M) Dimensional Tolerances for Aluminum Mill Products
The last approved version of this historical standard is referenced on www.astm.org.
Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,1400 Crystal Dr., Suite 430, Arlington, VA 22209,22202, http://www.aluminum.org.
B234M − 17
A,B
TABLE 2 Tensile Property Limits
Elongation in
Yield Strength,
Wall Thickness, mm
50 mm min, %
Tensile Strength, (0.2 % offset),
Alloy Temper
min, MPa min,
Full-Section Cut-Out
Over Through
MPa
Specimen Specimen
Wall Thickness, mm Yield Strength, Elongation in 50 mm min, %
Tensile Strength,
Alloy Temper (0.2 % offset), Full-Section Cut-out
Over Through min, MPa
min, MPa Specimen Specimen
1060 H14 0.25 5.00 85 70 . .
1060 H14 0.25 5.00 85 70 . . . . . .
3003 H14 0.25 0.63 140 115 3 .
3003 H14 0.25 0.63 140 115 3 . . .
0.63 1.20 140 115 5 3
0.63 1.20 140 115 5 3
1.20 5.00 140 115 8 4
1.20 5.00 140 115 8 4
H25 0.25 5.00 150 130 . .
H25 0.25 5.00 150 130 . . . . . .
Alclad 3003 H14 0.25 0.63 135 110 . .
Alclad 3003 H14 0.25 0.63 135 110 . . . . . .
0.63 1.20 135 110 5 3
0.63 1.20 135 110 5 3
1.20 5.00 135 110 8 4
1.20 5.00 135 110 8 4
H25 0.25 5.00 145 125 . .
H25 0.25 5.00 145 125 . . . . . .
5052 H32 0.25 5.00 215 160 . . . . . .
H32 0.25 5.00 215 160 . .
H34 0.25 5.00 235 180 . .
. .
H34 0.25 5.00 235 180
. . . .
5454 H32 0.25 1.20 250 180 . 5
5454 H32 0.25 1.20 250 180 . . . 5
1.20 5.00 250 180 . 8
1.20 5.00 250 . . . 8
H34 0.25 1.20 270 200 . 4
H34 0.25 1.20 270 200 . . . 4
1.20 5.00 270 200 . 6
1.20 5.00 270 200 . . . 6
6061 T4 0.25 1.20 205 110 16 14
6061 T4 0.25 1.20 205 110 16 14
1.20 5.00 205 110 18 16
T6 0.25 1.20 290 240 10 8
T6 0.25 1.20 290 240 10 8
1.20 5.00 290 240 12 10
A
To determine conformance to this specification, each value for tensile strength and for yield strength shall be rounded to the nearest 1 MPa and each value for elongation
to the nearest 0.5 %, both in accordance with the rounding-off method of Practice E29.
B
The basis for establishment of mechanical property limits is shown in Annex A1.
2.4 Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
2.5 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
2.6 AMS Specification:
AMS 2772 Heat Treatment of Aluminum Alloy Raw Materials
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://dodssp.daps.dla.mil.
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001. http://www.sae.org.
B234M − 17
2.7 EN Standard:
CEN EN 14242 Aluminum and Aluminum Alloys, Chemical Analysis, Inductively Coupled Plasma Optical Emission Spectral
Analysis
3. Terminology
3.1 Definitions: Refer to Terminology B881 for definitions of product terms used in this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 capable of—the term capable of as used in this specification means that the test need not be performed by the producer
of the material. However, should testing by the purchaser establish that the material does not meet these requirements, the material
shall be subject to rejection.
4. Ordering Information
4.1 Orders for material to this specification shall include the following information:
4.1.1 The specification designation (which includes the number, the year, and the revision letter, if applicable),
4.1.2 Quantity in pieces or kilograms,
4.1.3 Alloy (Section 7),
4.1.4 Temper (Section 8),
4.1.5 Outside or inside diameter, wall thickness, and length,
4.1.6 For alloy Alclad 3003, state clad inside or outside (12.1).
4.2 Additionally, orders for material to this specification shall include the following information when required by the
purchaser:
4.2.1 Whether heat treatment in accordance with Practice B918 is required (9.2),
4.2.2 Whether cut ends of tube are to be deburred (Section 14),
4.2.3 Whether inspection or witness of inspection and tests by the purchaser’s representative is required prior to material
shipment (Section 15),
4.2.4 Whether certification of the material is required (Section 17),
4.2.5 Whether marking for identification is required (Section 18), and
4.2.6 Whether Practices B660 applies and, if so, the level of preservation, packaging, and packing required (19.3).
5. Manufacture
5.1 The tube shall be produced by drawing an extruded tube made from hollow extrusion ingot (cast in hollow form or pierced)
and extruded by use of the die and mandrel method.
6. Responsibility for Quality Assurance
6.1 Responsibility for Inspection and Tests—Unless otherwise specified in the contract or purchase order, the producer is
responsible for the performance of all inspection and test requirements specified herein. The producer may use his own or any other
suitable facilities for the performance of the inspection and test requirements specified herein, unless disapproved by the purchaser
in the order or at the time of contract signing. The purchaser shall have the right to perform any of the inspections and tests set
forth in this specification where such inspections are deemed necessary to assure that material conforms to prescribed requirements.
6.2 Lot Definition—An inspection lot shall be defined as follows:
6.2.1 For heat-treated tempers, an inspection lot shall consist of an identifiable quantity of material of the same mill form, alloy,
temper, and thickness traceable to a heat-treated lot or lots, and subjected to inspection at one time.
6.2.2 For nonheat-treated tempers, an inspection lot shall consist of an identifiable quantity of material of the same mill form,
alloy, temper, and thickness subjected to inspection at one time.
7. Chemical Composition
7.1 Limits—The tube shall conform to the chemical composition limits in Table 1. Conformance shall be determined by the
producer by analyzing samples taken at the time thetaking samples in accordance with Practices E716 ingots are poured in
accordance with when the ingots are poured E716and analyzedanalyzing those samples in accordance with Test Methods E607,
E1251, E34E3061, or EN 14242. At least one sample shall be taken for each group of ingots poured simultaneously from the same
source of molten metal. If the producer has determined the chemical composition of the material during the course of manufacture,
he shall not be required to sample and analyze the finished product.
NOTE 3—It is standard practice in the United States aluminum industry to determine conformance to the chemical composition limits prior to further
processing of ingots into wrought products. Due to the continuous nature of the process, it is not practical to keep a specific ingot analysis identified with
a specific quantity of finished material.
Available from European Committee for Standardization Central Secretariat (CEN), rue de Stassart 36, B1050 Brussels, Belgium, http: //www.cen.eu/esearch.
B234M − 17
7.2 If it becomes necessary to analyze the finished or semifinished product for conformance to chemical composition limits, the
method used to sample the finished or semifinished product for the determination of chemical composition methods of sampling
and methods of analysis shall be as agreed between the buyer and seller. Analysis shall be performed in accordance with provided
in the following:E716, E607, E1251, E34, or EN 14242 (ICP method). The number of samples shall be as follows:
7.2.1 Methods of Sampling—When samples are taken from the finished or semifinished product, a sample Samples for chemical
analysis shall be taken to represent each 4000 lb or fraction thereof, of materal in the lot, exceptin accordance with Practice
B985that not more than one sample shall be required per piece.
7.2.2 Methods of Analysis—Other methods of analysis, in the case of dispute,Analysis shall be performed in accordance with
Test Methods E607may, E1251be, E3061used by agreement between the producer and purchaser., or EN 14242.
NOTE 4—It is difficult to obtain a reliable analysis of each of the components of clad materials using material in its finished state. A reasonably accurate
determination of the core composition can be made if the cladding is substantially removed prior to analysis. The cladding composition is more difficult
to determine because of the relatively thin layer and because of diffusion of core elements to the cladding. The correctness of cladding alloy us
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