ASTM B234M - 17

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Designation: B234M −17
Standard Speciﬁcation for
Aluminum and Aluminum-Alloy Drawn Seamless Tubes for
Surface Condensers, Evaporators, and Heat Exchangers
(Metric)
1
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 Annex 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 appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations 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:
2.2 ASTM Standards:
2,3
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 Ex-
truded 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
B666/B666M Practice for Identiﬁcation Marking of Alumi-
num 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, Cast-
ings 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
E215 Practice for Standardizing Equipment and Electromag-
netic Examination of Seamless Aluminum-Alloy Tube
1
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 Oct. 1, 2017. Published October 2017. Originally
approved in 1982. Last previous edition approved in 2010 as B234M – 10. DOI:
10.1520/B0234M-17.
2
For ASME Boiler and Pressure Vessel Code applications see related SB-234 in
Section ll of that code.
3
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
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.
1
 

TABLE 1 Chemical Composition Limits

A,B,C,I

Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Other Elements

Aluminum,

min

Each Total

1060 0.25 0.35 0.05 0.03 0.03 . . . 0.05 0.03

F,G

0.03 . . . 99.60

3003 0.6 0.7 0.05–0.20 1.0–1.5 . . . . . . 0.10 . . . 0.05 0.15 remainder

Alclad

3003 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

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

7072 0.07 Si + Fe 0.10 0.10 0.10 . . . 0.8–1.3 . . .

0.05 0.15 remainder

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

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

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.

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.

Other Elements—Total shall be the sum of unspeciﬁed metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.

Vanadium 0.05 max.

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.

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.

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.

TABLE 2 Tensile Property Limits

A,B

Alloy Temper

Wall Thickness, mm Tensile Strength,

min, MPa

Yield Strength,

(0.2 % offset),

min, MPa

Elongation in 50 mm min, %

Over Through Full-Section

Specimen

Cut-out

Specimen

1060 H14 0.25 5.00 85 70 . . . . . .

3003 H14 0.25 0.63 140 115 3 . . .

0.63 1.20 140 115 5 3

1.20 5.00 140 115 8 4

H25 0.25 5.00 150 130 . . . . . .

Alclad 3003 H14 0.25 0.63 135 110 . . . . . .

0.63 1.20 135 110 5 3

1.20 5.00 135 110 8 4

H25 0.25 5.00 145 125 . . . . . .

5052 H32 0.25 5.00 215 160 . . . . . .

H34 0.25 5.00 235 180 . . . . . .

5454 H32 0.25 1.20 250 180 . . . 5

1.20 5.00 250 . . . 8

H34 0.25 1.20 270 200 . . . 4

1.20 5.00 270 200 . . . 6

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

1.20 5.00 290 240 12 10

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.

The basis for establishment of mechanical property limits is shown in Annex A1.

B234M − 17

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 Tech-
nique Nitrogen Atmosphere (Withdrawn 2011)
4
E716 Practices for Sampling and Sample Preparation of
Aluminum and Aluminum Alloys for Determination of
Chemical Composition by Spark Atomic Emission Spec-
trometry
E1251 Test Method for Analysis of Aluminum and Alumi-
num Alloys by Spark Atomic Emission Spectrometry
E3061 Test Method for Analysis of Aluminum and Alumi-
num Alloys by Inductively Coupled Plasma Atomic Emis-
sion Spectrometry (Performance Based Method)
2.3 ANSI Standards:
5
H35.1/H35.1(M) Alloy and Temper Designation Systems for
Aluminum
H35.2(M) Dimensional Tolerances for Aluminum Mill
Products
2.4 Federal Standard:
6
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
2.5 Military Standard:
6
MIL-STD-129 Marking for Shipment and Storage
2.6 AMS Speciﬁcation:
7
AMS 2772 Heat Treatment of Aluminum Alloy Raw Mate-
rials
2.7 EN Standard:
8
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 (Sec-
tion 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 other-
wise 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 dis-
approved 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 con-
sist 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 compo-
sition limits in Table 1. Conformance shall be determined by
the producer by taking samples in accordance with Practices
E716 when the ingots are poured and analyzing those samples
in accordance with Test Methods E607,E1251,E3061,or
EN 14242. At least one sample shall be taken for each group of
ingots poured simultaneously from the same source of molten
4
The last approved version of this historical standard is referenced on
www.astm.org.
5
Available from Aluminum Association, Inc., 1400 Crystal Dr., Suite 430,
Arlington, VA 22202, http://www.aluminum.org.
6
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
dodssp.daps.dla.mil.
7
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Dr., Warrendale, PA 15096-0001. http://www.sae.org.
8
Available from European Committee for Standardization Central Secretariat
(CEN), rue de Stassart 36, B1050 Brussels, Belgium, http: //www.cen.eu/esearch.
B234M − 17
3
 

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摘要：

ASTM B234M - 17 是美国材料与试验协会发布的一项标准规范，主要适用于铝合金无缝拉制管材，专门用于表面冷凝器、蒸发器和热交换器等领域。该标准规定了管材的化学成分、力学性能、尺寸公差及测试方法，确保其在高温和腐蚀性环境中的可靠性与耐久性。对于从事暖通空调、电力或化工设备制造的企业而言，遵循 ASTM B234M - 17 有助于提升产品质量和合规性。该标准是国际公认的行业基准，适用于采购、质检及工程设计环节，帮助用户确保材料符合国际规范，降低设备故障风险。

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