ASTM B937-04
(Specification)Standard Specification for Copper-Beryllium Seamless Tube (UNS Nos. C17500 and C17510)
Standard Specification for Copper-Beryllium Seamless Tube (UNS Nos. C17500 and C17510)
SCOPE
1.1 This specification establishes the requirements for copper-beryllium alloy seamless tube in straight lengths. Copper-cobalt-beryllium alloy UNS No. C17500 and copper-nickel-beryllium alloy UNS No. C17510 will be the alloys furnished whenever this specification is specified.
1.2 UnitsThe values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification. 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 to determine the applicability of regulatory limitations prior to use.
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Designation: B937 – 04
Standard Specification for
Copper-Beryllium Seamless Tube (UNS Nos. C17500 and
C17510)
This standard is issued under the fixed designation B937; 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 E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
1.1 This specification establishes the requirements for
E255 Practice for Sampling Copper and Copper Alloys for
copper-beryllium alloy seamless tube in straight lengths.
the Determination of Chemical Composition
Copper-cobalt-beryllium alloy UNS No. C17500 and copper-
E1004 Test Method for Determining Electrical Conductiv-
nickel-beryllium alloy UNS No. C17510 will be the alloys
ity Using the Electromagnetic (Eddy-Current) Method
furnished whenever this specification is specified.
1.2 Units—The values stated in inch-pound units are to be
3. General Requirements
regarded as standard. The values given in parentheses are
3.1 The following sections of Specification B251 (as noted)
mathematical conversions to SI units, which are provided for
constitute a part of this specification:
information only and are not considered standard.
3.1.1 Workmanship, Finish, and Appearance,
1.3 The following safety hazard caveat pertains only to the
3.1.2 Number of Tests and Retests,
test method(s) described in this specification. This standard
3.1.3 Significance of Numerical Limits,
does not purport to address all of the safety concerns, if any,
3.1.4 Inspection,
associated with its use. It is the responsibility of the user of this
3.1.5 Rejection and Rehearing,
standard to establish appropriate safety and health practices
3.1.6 Certification,
and to determine the applicability of regulatory limitations
3.1.7 Mill Test Report, and
prior to use.
3.1.8 Packaging and Package Marking.
2. Referenced Documents
4. Terminology
2.1 The following documents of the issue in effect on date
4.1 For definitions of terms related to copper and copper
of material purchase form a part of this specification to the
alloys, refer to Terminology B846.
extent referenced herein:
2 4.2 Definitions of Terms Specific to This Standard:
2.2 ASTM Standards:
4.2.1 average diameter (for round tubes only), n—the
B193 Test Method for Resistivity of Electrical Conductor
average of the maximum and minimum outside diameters, or
Materials
maximum and minimum inside diameters, whichever is appli-
B194 Specification for Copper-Beryllium Alloy Plate,
cable, as determined at any one cross section of the tube.
Sheet, Strip, and Rolled Bar
4.2.2 lengths, n—straight pieces of the product
B251 Specification for General Requirements for Wrought
4.2.2.1 ends, n—straight pieces, shorter than the nominal
Seamless Copper and Copper-Alloy Tube
length, left over after cutting the product into mill lengths,
B601 Classification for Temper Designations for Copper
stock lengths, or specific lengths.They are subject to minimum
and Copper Alloys—Wrought and Cast
length and maximum weight requirements.
B846 Terminology for Copper and Copper Alloys
4.2.2.2 specific, adj—straight lengths that are uniform in
E8 Test Methods for Tension Testing of Metallic Materials
length, as specified, and subject to established length toler-
ances.
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.2.2.3 specific with ends, adj—specific lengths, including
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
ends.
and Tube.
4.2.2.4 stock, n—straightlengthsthataremillcutandstored
Current edition approved May 1, 2004. Published May 2004. DOI: 10.1520/
B0937-04. in advance of orders. They are usually 8, 10, 12, or 20 ft (2.44,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.05, 3.66, or 6.10 m) and subject to established length
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
tolerances.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B937 – 04
TABLE 1 Chemical Composition
4.2.2.5 stock with ends, adj—stock lengths, including ends.
4.2.3 tube, n—a hollow product of round or any other cross Concentration, %
section having a continuous periphery.
Copper Alloy Copper Alloy
Element UNS No. UNS No.
4.2.3.1 tube, seamless, adj—a tube produced with a con-
C17500 C17510
tinuous periphery in all stages of the operations.
Beryllium 0.4-0.7 0.2-0.6
Cobalt 2.4-2.7 0.3 max
5. Ordering Information
Nickel … 1.4-2.2
Iron, max 0.10 0.10
5.1 Include the following information when placing orders
Aluminum, max 0.20 0.20
for product under this specification, as applicable:
Silicon, max 0.20 0.20
5.1.1 Quantity, number of pieces or pounds,
Copper Remainder Remainder
5.1.2 Copper Alloy UNS No. designation (see 1.1),
5.1.3 Temper (see section 8)
5.1.4 Dimensions, including length if applicable. For tube
7. Chemical Composition
or pipe specify either OD/ID, OD/wall, or ID/wall.
7.1 The material shall conform to the chemical composition
5.1.5 How furnished: stock lengths with or without ends,
requirements in Table 1 for the copper alloy designated in the
specific lengths with or without ends,
ordering information.
5.1.6 ASTM designation and year of issue,
7.2 These composition limits do not preclude the presence
5.1.7 Special tests or exceptions, if any,
ofotherelements.Byagreementbetweenthemanufacturerand
5.1.8 Hardness tests, if required,
purchaser, limits may be established and analysis required for
5.1.9 Special tests such as tension test, if required,
unnamed elements
5.1.10 Special marking or packaging, if required,
7.3 For alloys in which copper is listed as “Remainder,”
5.1.11 Inspection, if required (see Specification B251),
copper is the difference between the sum of results of all
5.1.12 Certification, if required (see Specification B251),
elements determined and 100 %. When all elements in Table 1
5.1.13 Mill test report, if required (see Specification B251).
are determined, the sum of results shall be 99.5 % min.
5.2 When material is purchased for agencies of the U.S.
government, this shall be specified in the contract or purchase
8. Temper
order, and the material shall conform to the Supplementary
8.1 Tempers, as described in Classification B601, available
Requirements as defined in the current issue of Specification
B251. under this specification are: TB00 (solution treated (A)), TF00
(precipitation hardened (AT)), TD04 (solution heat-treated and
6. Materials and Manufacture
cold worked: hard (H)), and TH04 (hard and precipitation
heat-treated (HT)). These products meet property requirements
6.1 Materials:
in Table 2.
6.1.1 The material of manufacture shall be UNS Alloy No.
C17500 or C17510, cast and worked into tubular form, and of
9. Precipitation Heat Treatment
such purity and soundness as to be suitable for processing into
the products prescribed herein. 9.1 When material is purchased in the TB00 (A) or the
6.1.2 The tube shall have heat traceable identity. TD04 (H) tempers, the precipitation heat treatment is per-
6.2 Manufacture: formed by the purchaser.
6.2.1 The product shall be manufactured by a combination 9.2 Conformance to the TF00 (AT) and TH04 (HT) speci-
of hot working or cold working, or both; annealing; or fication limits shown in Table 2, for products supplied in the
precipitation heat treatment, or both, as to produce a uniform TB00 (A) or the TD04 (H) tempers, shall be determined by
wrought structure in the finished product, to meet the temper testing test specimens heat-treated at a uniform temperature of
specified. 850 to 900°F for the times shown in Table 3.
A
TABLE 2 Tensile Strength and Rockwell Hardness Requirements
Temper Designation As Supplied
Tensile Rockwell Electrical
Standard Former Strength Hardness, Conductivity
B C
Ksi (MPa ) B Scale IACS min, %
TB00 Solution heat-treated (A) 35-55 (240-380) 50 max 20
TD04 Solution heat-treated and 65-80 (450-550) 60-80 20
cold-worked hard (H)
After Precipitation Heat Treatment
D
TF00 Precipitation hardened (AT) 100-130 (690-895) 92-100 45
D
TH04 Hard and precipitation heat- 110-140 (760-965) 95-102 48
treated (HT)
A
These values apply to mill products. See Section 10 for exceptions in end products.
B
ksi = 1000 psi.
C
See Appendix.
D
The upper limits in the tensile strength column are for design guidance only.
B937 – 04
TABLE 3 Precipitation Heat-Treatment Time for Acceptance Tests
Temper Designation Copper Alloy UNS Copper Alloy UNS
No. 17500 At No. C17510 At
A
900°F (482°C), h 850°F (454°C) to
Standard Former
A
900°F (482°C) ,h
TB00 Solution heat-treated (A) 3 3
TD04 Solution heat-treated and cold-worked: 22
hard (H)
A
Specific temperature used must conform with supplier’s certification.
9.3 End products may be heat-treated at other times and 11.2.1 The referee product rejection criteria shall be tensile
temperatures for specific applications. These special combina- results, when rested in accordance with Test Methods E8.
tions of properties such as increased ductility, dimensional 11.3 Tension Test—The tension test will be used for quali-
accuracy, and endurance strength may be obtained by special fication of all material when specifically required by the
precipitation-hardening heat treatments. The mechanical re- purchaser, as in some government requirements.
quirements of Table 2 do not apply to such special heat
12. Purchases for the U.S. Government
treatment. Specific test requirements as needed shall be agreed
upon between the manufacturer or the supplier and the pur-
12.1 When specified in the contract or purchase order,
chaser of the end product.
product purchased for agencies of the U.S. government shall
9.4 TF00 (AT) and TH04 (HT) tempers as standard mill-
conform to the special government regulations specified in the
hardened products has been precipitation heat-treated and
Supplemental Requirements section of Specification B251.
tested by the manufacturer. An appropriate time and tempera-
tu
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