ASTM B927-03

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Designation: B 927 – 03
Standard Specification for
Brass Rod, Bar, and Shapes
This standard is issued under the fixed designation B 927; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. General Requirements
1.1 This specification establishes requirements for brass rod 3.1 The following sections of Specification B 249/B 249M
(round, hexagonal, and octagonal), bar (rectangular and constitute a part of this specification:
square), and shapes of UNSAlloys C21000, C22000, C23000, 3.1.1 Terminology,
C24000, C26000, C26800, C27000, and C27400. 3.1.2 Materials and Manufacture,
1.2 Units—The values stated in either inch-pound or SI 3.1.3 Workmanship, Finish, and Appearance,
units are to be regarded separately as standard. Within the text 3.1.4 Sampling,
andtables,theSIunitsareshowninbrackets.Thevaluesstated 3.1.5 Number of Tests and Retests,
in each system may not be exact equivalents; therefore, each 3.1.6 Specimen Preparation,
system shall be used independently of the other. Combining 3.1.7 Test Methods,
values from the two systems may result in nonconformance 3.1.8 Significance of Numerical Limits,
with the standard. 3.1.9 Inspection,
3.1.10 Rejection and Rehearing,
2. Referenced Documents
3.1.11 Certification,
2.1 ASTM Standards:
3.1.12 Mill Test Reports,
B 16/B 16M Specification for Free-Cutting Brass Rod, Bar 3.1.13 Product Marking,
and Shapes for Use in Screw Machines
3.1.14 Packaging and Package Marking, and
B 36/B 36M Specification for Brass Plate, Sheet, Strip, and 3.1.15 Supplementary Requirements.
Rolled Bar
3.2 In addition, when a section with a title identical to that
B 121/B 121M Specification for Leaded Brass Plate, Sheet, referenced in 3.1 appears in this specification, it contains
Strip, and Rolled Bar
additional requirements that supplement those that appear in
B 124/B 124M Specification for Copper and Copper Alloy
Specification B 249/B 249M.
Forging Rod, Bar, and Shapes
2 4. Ordering Information
B 134/B 134M Specification for Brass Wire
B 135 Specification for Seamless Brass Tube 4.1 Include the following information in orders for product:
B 249/B 249M Specification for General Requirements for 4.1.1 ASTM Designation and year of issue,
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and 4.1.2 Copper Alloy UNS No. designation,
Forgings 4.1.3 Temper,
B 587 Specification for Welded Brass Tube 4.1.4 Cross section (round, hexagonal, octagonal, rectangu-
E 8 Test Methods forTensionTesting of Metallic Materials lar, or square),
E 8M Test Methods for Tension Testing of Metallic Mate- 4.1.5 Quantity(totalweight,footage,ornumberofpiecesof
rials (Metric) each temper, cross section, and alloy),
E 478 Test Methods for Chemical Analysis of Copper 4.1.6 Dimensions (diameter or distance between parallel
Alloys surfaces, width and thickness, length),
4.1.7 Type of edge (square corners, rounded edge, full-
rounded edge),
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1.8 How furnished (specific lengths with or without ends),
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
and
Bar, Wire, Shapes and Forgings.
Current edition approved May 10, 2003. Published June 2003. 4.1.9 When material is purchased for agencies of the U.S.
Annual Book of ASTM Standards, Vol 02.01.
government (Specification B 249/B 249M).
Annual Book of ASTM Standards, Vol 03.01.
Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B927–03
4.2 The following requirements are available to this speci- 7.1.4 H04 (Hard).
fication and should be specified in the contract or purchase 7.2 Other tempers, and temper for other products including
order when required: shapes,shallbesubjecttoagreementbetweenthemanufacturer
4.2.1 Certification (Specification B 249/B 249M), and and the purchaser.
4.2.2 Mill Test Report (Specification B 249/B 249M).
8. Mechanical Property Requirement
5. Materials and Manufacture
8.1 Tensile Strength Requirements:
5.1 Material:
8.1.1 Product shall conform to the requirements of Tables 2
5.1.1 The material shall be made from cast billets, logs, or
and 3 when tested in accordance with Test Methods E 8 or
rods of Copper Alloy UNS Nos. C21000, C22000, C23000,
E 8M.
C24000,C26000,C26800,C27000,orC274000ofsuchpurity,
soundness, and structure to be suitable for processing into the
9. Purchases for U.S. Government
desired product.
9.1 When specified in the contract or purchase order,
5.2 Manufacture:
product purchased for agencies of the U.S. government shall
5.2.1 The products shall be manufactured by such hot
conform to the special government requirements stipulated in
working,coldworking,andannealingprocessingastoproduce
the Supplementary Requirements section of Specification
a uniform wrought structure in the finished product.
B 249/B 249M.
6. Chemical Composition
10. Dimensions, Mass, and Permissible Variations
6.1 The material shall conform to the chemical composi-
10.1 The dimensions and tolerances for rod, bar, and shapes
tional requirements specified in Table 1 for the copper alloy
described by this specification shall be as specified in Specifi-
specified in the ordering information.
cationB 249/B 249Mwithparticularreferencetothefollowing
6.1.1 When all elements specified for a given alloy in Table
tables in that specification:
1 are determined, their sum of results shall be as follows:
10.1.1 Diameter or Distance Between Parallel Surfaces:
Sum of Results,
Alloy UNS Nos. 10.1.1.1 Rod—Table 1.
Percent, Minimum
10.1.1.2 Bar—Tables 8 and 10.
C21000, C22000, C23000, C24000 99.8
C26000, C26800, C27000, C27400 99.7
10.1.2 Shapes—Dimensional tolerances shall be subject to
agreement between the manufacturer and the purchaser.
6.2 These composition limits do not preclude the presence
10.1.3 Length—Tables 13 and 14.
of other elements. Limits may be established and analysis
10.1.4 Straightness—Table 16—General Use section.
required for unnamed elements by agreement between the
10.1.5 Angles—All regular polygonal sections shall have
manufacturer and the purchaser.
substantially exact angles and, unless otherwise specified,
6.3 Zinc,listedasthe“remainder,”isthedifferencebetween
sharp corners.
the sum of results for all elements determined and 100 %.
7. Temper 11. Test Methods
11.1 Chemical Analysis:
7.1 The standard tempers for rod and bar described in this
specification are given in Tables 2 and 3. 11.1.1 Compositionshallbedetermined,incaseofdisagree-
ment, as follows:
7.1.1 O60 (Soft Anneal),
7.1.2 H01 ( ⁄4 Hard),
Element Test Method
1 Copper E 478
7.1.3 H02 ( ⁄2 Hard), and
Lead E 478 (AA)
Iron E 478
Zinc E 478 (Titrametric)
TABLE 1 Chemical Requirements
Composition, %
11.1.2 Test methods to be followed for the determination of
Copper Alloy
UNS No.
Copper Lead, max Iron, max Zinc elements resulting from contractual or purchase order agree-
ment shall be as agreed upon between the manufacturer or
C21000 94.0-96.0 0.05 0.05 remainder
C22000 89.0-91.0 0.05 0.05 remainder
supplier and the purchaser.
C23000 84.0-86.0 0.05 0.05 remainder
C24000 78.5-81.5 0.05 0.05 remainder
12. Keywords
C26000 68.5-71.5 0.07 0.05 remainder
C26800 64.0-68.5 0.15 0.05 remainder
12.1 brass bar; brass rod; brass shape; copper-alloy rod;
C27000 63.0-68.5 0.10 0.07 remainder
C21000; C22000; C23000; C24000; C26000; C26800;
C27400 61.0-64.0 0.10 0.05 remainder
C27000; C27400
B927–03
TABLE 2 Tensile Requirements (Inch-Pound Units)
A
Diameter or Yield Strength at Elongation in
Tensile Strength,
Temper Distance Between 0.5 % Extension 43 diameter or
min
Parallel Surfaces, in. Under Load, min 43 thickness, min
Code Name ksi ksi %
Copper Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)
O60 Soft Anneal All sizes 30 10 25
1 1
H01 ⁄4 Hard Under ⁄2 36 16 15
⁄2 to 1, incl 34 14 17
over 1 32 12 19
1 1
H02 ⁄2 Hard Under ⁄2 42 25 8
⁄2 to 1, incl 40 23 9
over 1 37 20 11
H04 Hard Under ⁄2 52 40 5
⁄2 to 1, incl 48 37 7
over 1 to 2 incl 45 35 9
B
Copper Alloy UNS No. C21000 Bar
O60 Soft Anneal All sizes 30 10 25
1 1
H01 ⁄4 Hard Under ⁄2 34 14 17
⁄2 to 2, incl 32 12 19
Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)
060 Soft Anneal All sizes 32 10 25
1 1
H01 ⁄4 Hard Under ⁄2 39 20 15
⁄2 to 1, incl 37 17 17
over 1 34 15 19
1 1
H02 ⁄2 Hard Under ⁄2 50 30 7
⁄2 to 1, incl 45 27 10
over 1 40 25 12
H04 Hard Under ⁄2 57 40 5
⁄2 to 1, incl 55 37 7
over 1 to 2 incl 50 35 9
B
Copper Alloy UNS No. C22000 Bar
O60 Soft Anneal All sizes 32 10 25
1 1
H01 ⁄4 Hard Under ⁄2 35 16 17
⁄2 to 2, incl 34 15 19
Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)
O60 Soft Anneal All sizes 35 10 25
1 1
H01 ⁄4 Hard Under ⁄2 44 20 15
⁄2 to 1, incl 42 17 17
over 1 40 15 19
1 1
...