ASTM B75-02(2010)
(Specification)Standard Specification for Seamless Copper Tube
Standard Specification for Seamless Copper Tube
ABSTRACT
This specification establishes the requirements for seamless round, rectangular, and square copper tube suitable for general engineering applications. The tube shall be manufactured by such hot- and cold-working processes as to produce a homogeneous, uniform wrought structure in the finished product. It shall be cold drawn to the finished size and wall thickness. The requirements and size availability of tube in the tempers shall conform to the specified requirements. Tensile and yield strength test, Rockwell hardness test, expansion test, microscopical examination, hydrogen embrittlement, electromagnetic test, hydrostatic pressure test, pneumatic pressure test, electrical resistivity, and chemical composition shall be made to conform to specified requirements.
SCOPE
1.1 This specification establishes the requirements for seamless round, rectangular, and square copper tube suitable for general engineering applications.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B75 – 02 (Reapproved 2010)
Standard Specification for
Seamless Copper Tube
ThisstandardisissuedunderthefixeddesignationB75;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* B153 Test Method for Expansion (Pin Test) of Copper and
2 Copper-Alloy Pipe and Tubing
1.1 This specification establishes the requirements for
B170 Specification for Oxygen-Free Electrolytic Copper—
seamless round, rectangular, and square copper tube suitable
Refinery Shapes
for general engineering applications.
B193 Test Method for Resistivity of Electrical Conductor
1.1.1 Tubes made from any of the following Copper UNS
Materials
No.designationsshallbesuppliedunlessotherwisespecifiedin
B251 Specification for General Requirements for Wrought
the contract or purchase order:
Seamless Copper and Copper-Alloy Tube
Copper UNS No. Type of Copper
B577 Test Methods for Detection of Cuprous Oxide (Hy-
C10100 Oxygen-free electronic
drogen Embrittlement Susceptibility) in Copper
C10200 Oxygen-free without residual deoxidants
B601 Classification for Temper Designations for Copper
C10300 Oxygen-free, extra low phosphorus
and Copper Alloys—Wrought and Cast
C10800 Oxygen-free, low phosphorus
C12000 Phosphorus deoxidized, low residual phosphorus
E3 Guide for Preparation of Metallographic Specimens
C12200 Phosphorus deoxidized, high residual phosphorus
E8 Test Methods for Tension Testing of Metallic Materials
1.2 The values stated in inch-pound units are the standard
E18 Test Methods for Rockwell Hardness of Metallic Ma-
except for grain size values which are given in SI units.
terials
1.3 This specification is the companion to SI Specification
E53 TestMethodforDeterminationofCopperinUnalloyed
B75M; therefore no SI equivalents are presented in this
Copper by Gravimetry
specification.
E62 Test Methods for Chemical Analysis of Copper and
1.4 The following hazard statement pertains only to the test
Copper Alloys (Photometric Methods)
method described in Sections 20.5.2.1, 21.2.9, and 21.2.10 of E112 Test Methods for Determining Average Grain Size
thisspecification: This standard does not purport to address all
E243 Practice for Electromagnetic (Eddy-Current) Exami-
of the safety concerns, if any, associated with its use. It is the nation of Copper and Copper-Alloy Tubes
responsibility of the user of this standard to establish appro-
E255 Practice for Sampling Copper and Copper Alloys for
priate safety and health practices and determine the applica- the Determination of Chemical Composition
bility of regulatory limitations prior to use.
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
2. Referenced Documents
3. Terminology, Specific
2.1 ASTM Standards:
B75M Specification for Seamless Copper Tube (Metric) 3.1 Definitions of Terms Specific to This Standard:
3.1.1 capable of—the test need not be performed by the
producerofthematerial.However,ifsubsequenttestingbythe
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
purchaser establishes that the material does not meet these
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
and Tube. requirements, the material shall be subject to rejection.
Current edition approved Oct. 1, 2010. Published December 2010. Originally
3.1.2 unaided eye, n—visual inspection without the use of
published as B75–28T. Last previous edition B75–02. DOI: 10.1520/B0075-
special equipment or enhancement excepting the use of cor-
02R10.
rective lenses.
For ASME Boiler and Pressure Vessel Code applications refer to related
Specification SB-75 in Section II 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 Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
*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.
B75 – 02 (2010)
4. Ordering Information 6.1.1 Thesespecificationlimitsdonotprecludethepresence
of other elements. When included in the contract or purchase
4.1 Include the following information in orders for prod-
order,andagreeduponbythemanufacturerorsupplierandthe
ucts.
purchaser, limits shall be established and analysis required for
4.1.1 ASTM designation and year of issue (for example,
unnamed elements.
B75–99),
4.1.2 Copper UNS No. (for example, C10100),
7. Temper
4.1.3 Temper (Section 7),
4.1.4 Dimensions; diameter or distance between parallel 7.1 The requirements and size availability of tube in the
surfaces, and wall thickness (Section 16),
cold-drawn tempers H55, H58, and H80, as defined in Classi-
4.1.5 How furnished; coils or straight lengths, fication B601, are specified in Table 2.
4.1.6 Number of pieces or footage; each size and type,
7.1.1 Rectangular, including square, tube shall normally be
4.1.7 Total weight, supplied only in H58 temper. When requested by the manu-
4.1.8 When product is purchased for ASME Boiler and
facturer or supplier, and upon agreement with the purchaser,
Pressure Vessel Code application, and tube shall be supplied in H55 or H58 temper.
4.1.9 When product is purchased for agencies of the U.S. 7.1.1.1 For any combination of diameter and wall thickness
Government.
not listed under H80 temper, the requirements specified for
4.2 The following options are available and shall be speci- H58 temper shall apply.
fied at the time of placing the order, when required:
7.2 The requirements and size availability of tube in the
4.2.1 Electrical mass resistivity test, annealed tempers O50 and O60, as defined in Classification
4.2.2 Hydrogen embrittlement test,
B601, are specified in Table 2.
4.2.3 Hydrostatic test,
NOTE 1—The purchaser shall confer with the manufacturer or supplier
4.2.4 Pneumatic test,
for the availability of product in a specific temper.
4.2.5 Certification, and
NOTE 2—Refer to Appendix X1 for recommended applications based
4.2.6 Test report.
on temper.
5. Material and Manufacture 8. Grain Size Requirements
5.1 Material—The material of manufacture shall be billets, 8.1 Tube in the annealed temper shall conform to the grain
bars, or tube of Copper UNS No. C10100, C10200, C10300, size specified in Table 2.
C10800,C12000,orC12200,andshallbeofsuchsoundnessas
to be suitable for processing into the tubular products de- 9. Physical Property Requirements
scribed.
9.1 Electrical Resistivity—Whenspecifiedinthecontractor
5.2 Manufacture—The tube shall be manufactured by such
purchase order, tube ordered for electrical conductor applica-
hot-andcold-workingprocessesastoproduceahomogeneous,
tion produced from Copper UNS No. C10100, C10200,
uniform wrought structure in the finished product. It shall be
C10300, or C12000 shall have an electrical mass resistivity,
cold drawn to the finished size and wall thickness. When
V·g/m , not to exceed the following limit for the specified
cold-drawn temper is required, the final drawing operation
copper and temper when tested in accordance with Test
shall be such as to meet the specified temper. When annealed
Method B193:
temperisrequired,thetubeshallbeannealedsubsequenttothe
Copper UNS No.
Temper
final cold draw.
C10100 C10200 C10300 C12000
O60, O50 0.151 76 0.153 28 0.156 14 0.170 31
6. Chemical Composition
H55, H58, H80 0.156 14 0.157 37 0.159 40 0.174 18
6.1 The material shall conform to the requirements inTable
NOTE 3—Refer toAppendix X2 for the InternationalAnnealed Copper
1 for the specified Copper UNS No. designation.
Standard (IACS) electrical conductivity equivalents.
10. Mechanical Property Requirements
10.1 Tensile and Yield Strength:
Refer to Practice E527 for explanation of unified numbering system (UNS).
TABLE 1 Chemical Requirements
Composition, %
Element Copper UNS No.
A B
C10100 C10200 C10300 C10800 C12000 C12200 C14200
C
Copper , min 99.99 99.95 . . 99.90 99.9 99.40
C
Copper + . . 99.95 99.95 . . .
phosphorus, min
Phosphorus . . 0.001–0.005 0.005–0.012 0.004–0.012 0.015–0.040 0.015–0.040
Arsenic . . . . . . 0.15–0.50
A
Refer to Table 1, Chemical Requirements, Grade 1, of Specification B170 for impurity limits for Copper UNS No. C10100.
B
Refer to Table 1, Chemical Requirements, Grade 2, of Specification B170 for impurity limits for Copper UNS No. C10200.
C
Copper (including silver).
B75 – 02 (2010)
TABLE 2 Mechanical Property Requirements of Drawn-Temper and Annealed-Temper Tube
Outside Diameter,
Yield
Temper Designation Rockwell Hardness
or Major Average
B
Tensile Strength, Strength,
Distance Between Wall Thickness, in. Grain
A
ksi min.,
Outside Parallel Size, mm
A
Standard Former Scale Hardness ksi
Surfaces, in.
C D
H55 light-drawn all all 30T 30 to 60 36–47 30
D
H58 drawn (general all all 30T 30 min 36 min 30
purpose)
C D
H80 hard-drawn up to 4 0.020 to 0.250, incl 30T 55 min 45 min 40
E F
O60 soft anneal all 0.015 to 0.035 15T 60 max 0.040 min 30 min 9
E F
0.035 and over F 50 max 0.040 min 30 min 9
E F
O50 light anneal all 0.015 to 0.035 15T 65 max 0.040 max 30 min 9
E F
0.035 and over F 55 max 0.040 max 30 min 9
A
ksi = 1000 psi.
B
Yield strength to be determined at 0.5 % extension under load.
C
Light-drawn and hard-drawn tempers are normally available in round tubes only.
D
Rockwell hardness values shall apply only to tubes having a wall thickness of 0.020 in. or over, to round tubes having an inside diameter of ⁄16 in. or over, and to
rectangular including square tubes having an inside major distance between parallel surfaces of ⁄16 in. or over. Rockwell hardness tests shall be made on the inside surface
of the tube. When suitable equipment is not available for determining the specified Rockwell hardness, other Rockwell scales and values shall be specified subject to
agreement between purchaser and supplier.
E
Rockwell hardness values shall apply only to tubes having a wall thickness of 0.015 in. or over, to round tubes having an inside diameter of ⁄16 in. or over, and to
rectangular including square tubes having an inside major distance between parallel surfaces of ⁄16 in. or over. For all other tube no Rockwell values shall apply. Rockwell
hardness tests shall be made on the inside surface of the tube. When suitable equipment is not available for determining the specified Rockwell hardness, other Rockwell
scales and values shall be specified subject to agreement between purchaser and supplier.
F
Light-straightening operation is acceptable.
10.1.1 The tube shall conform to the requirements of Table 12. Microscopical Examination
2 for the specified temper and wall thickness.
12.1 TubesfurnishedinCopperUNSNo.C10100,C10200,
10.1.2 For any combination of diameter and wall thickness
C10300, and C12000 shall be essentially free of cuprous oxide
not listed under H80, the requirements for H58 shall apply.
as determined by Procedure A of Test Methods B577.
10.2 Rockwell Hardness:
13. Hydrogen Embrittlement
10.2.1 The tube shall conform to the requirements of Table
2 for the specified temper and wall thickness.
13.1 Whenspecifiedinthecontractorpurchaseorder,tubes
10.2.1.1 TheRockwellHardnessvaluesfortubeintheH55, produced in all designated copper material shall be capable of
H58, and H80 temper shall apply only to the following: conforming to the requirements of Procedure B of Test
Methods B577.
(a) Tubes having a wall thickness of 0.020 in. and over,
(b) Round tubes having an inside diameter of ⁄16 in. and
14. Purchases for U.S. Government Agencies
over,
14.1 When the contract or purchase order stipulates the
(c) Rectangular and square tubes having major distances
purchase is for an agency of the U.S. Government, the tubes
between parallel surfaces of ⁄16 in. and over.
furnished shall conform to the conditions specified in the
10.2.1.2 The Rockwell Hardness values for tube in the O60
Supplementary Requirements of Specification B251.
and O50 temper shall apply only to the following:
(a) Tubes having a wall thickness of 0.015 in. and over;
15. Nondestructive Test
(b) Round tubes having an inside diameter of ⁄16 in. and
15.1 The tubes shall be tested in the drawn tempers or as
over;
drawn before the final-annealed temper unless otherwise
(c) Rectangular and square tubes having inside major dis-
agreed upon between the manufacturer and the purchaser.
tances between parallel surfaces of ⁄16 in. and over.
15.2 Electromagnetic (Eddy-Current) Test:
10.3 Straightening—It shall not be prohibited to use light
15.2.1 Each tube up to and including 3 ⁄8 in. in outside
straightening for tube in the O60 and O50 temper.
diameter shall be subjected to test.
15.2.2 WhentestedinaccordancewithPracticeE243,tubes
11. Performance Requirements
which do not actuate the signaling device of the testing unit
11.1 Expansion Test for Round Tube—Whenspecifiedinthe shall be considered as conforming to the requirements of the
contract or purchase order, annealed tubes shall be capable of test.
withstanding an expansion of the outside diameter of 40% for 15.3 Hydrostatic Pressure Test—When specified in the
3 3
tube ⁄4 in. and under and 30% for tube over ⁄4 in. The tube contract or purchase order, each tube shall be capable of
shall show no cracking or rupture visible to the unaided eye. withstanding an internal hydrostatic pressure sufficient to
B75 – 02 (2010)
A
produce a fiber stress of 6000 psi without leakage. The tube
Number of Pieces in Lot Number of Portions to Be Taken
need not be subjected to a pressure gage reading over 1000 psi
1to50 1
unless specifically stipulated in the contract or purchase order.
51 to 200 2
15.4 Pneumatic Pressure Test—When specified in the con-
201 to 1500 3
tract or purchase order, each tube shall be capable of with-
A
standing an internal air pressure of 60 psi, minimum, for 5 s
Each test portion shall be taken from a separate tube.
without leakage.
18.2 Chemical Composition:
18.2.1 The composite sample shall be taken in approximate
16. Dimensions, Mass, and Permissible Variations equalweightsfromeachportionpieceselectedin18.1.2andin
accordance with Practice E255. The minimum weight of the
16.1 Thedimensionsandtolerancesforproductfurnishedto
composite shall be 150 g.
this specification shall be as specified in the following tables
18.2.2 T
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