ASTM B455-96
(Specification)Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
SCOPE
1.1 This specification establishes the requirements for extruded leaded-brass angles, channels, and other architectural shapes of solid cross section produced in Copper Alloy UNS Nos. C38000 and C38500.
1.1.1 Pipe, tube, or other hollow section products are not included in this specification.
1.2 Units—The values stated in inch-pound units are the standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.
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Designation: B 455 – 96
Standard Specification for
Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes
This standard is issued under the fixed designation B 455; 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 * 3.2.1 Intended end use or application,
3.2.2 Heat identification or traceability details (Specifica-
1.1 This specification establishes the requirements for ex-
tion B 249),
truded leaded-brass angles, channels, and other architectural
3.2.3 Certification (Specification B 249), and
shapes of solid cross section produced in Copper Alloy UNS
3.2.4 Mill Test report (Specification B 249).
Nos. C38000 and C38500.
1.1.1 Pipe, tube, or other hollow section products are not
4. Chemical Composition
included in this specification.
4.1 The material shall conform to the requirements specified
1.2 The values stated in inch-pound units are the standard.
in Table 1 for the copper alloy UNS No. designated in the
SI values given in parentheses are for information only.
ordering information.
2. Referenced Documents 4.1.1 These composition limits do not preclude the presence
of unnamed elements. When required, limits shall be estab-
2.1 ASTM Standards:
lished and analysis required for unnamed elements by agree-
B 249 Specification for General Requirements for Wrought
2 ment between the manufacturer and the purchaser.
Copper and Copper Alloy Rod, Bar, Shapes, and Forgings
4.2 For copper alloys in which zinc is specified as the
B 601 Practice for Temper Designations for Copper and
2 remainder, either copper or zinc is permitted to be taken as the
Copper Alloys—Wrought and Cast
difference between the sum of results for all elements analyzed
E 8 Test Methods for Tension Testing of Metallic Materials
and 100 %. When copper is so determined, that difference
E 54 Test Methods for Chemical Analysis of Special
value shall conform to the requirements given in Table 1.
Brasses and Bronzes
4.3 When all elements specified in Table 1 are determined
E 478 Test Methods for Chemical Analysis for Copper
for the copper alloy UNS No. designated in the ordering
Alloys
information, the sum of the results shall be 99.5 % minimum.
3. Ordering Information
5. Temper
3.1 Orders for materials shall include the following infor-
5.1 The temper of the product furnished to this specifica-
mation:
tion, and as defined in Practice B 601, shall be M20 (as hot
3.1.1 ASTM designation and year of issue (for example,
extruded).
B 455 – 96),
3.1.2 Copper alloy UNS No. designation (for example,
6. Mechanical Property Requirements
C38000),
6.1 Tensile Strength Requirements:
3.1.3 Temper (Section 5),
6.1.1 The product furnished shall conform to the require-
3.1.4 Form, dimensions, and tolerances (Section 7), and
ments of Table 2 when tested in accordance with Test Methods
3.1.5 Quantity; total weight or number of pieces for each
E8.
form, temper, size, and copper alloy.
6.1.2 The tension test results shall be the basis for purchaser
3.2 The following options are available in this specification
acceptance or rejection based upon mechanical properties.
and shall be included in the contract or purchase order when
6.1.2.1 When product is intended for strictly decorative
required:
purposes and so stated in the purchase order or contract, it is
permitted under this specification for the mechanical property
This specification is under the jurisdiction of ASTM Committee B-5 on Copper requirements to be waived by the purchaser.
and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,
6.2 Rockwell Hardness:
Bar, Wire, Shapes, and Forgings.
6.2.1 A Rockwell hardness test offers a quick and conve-
Current edition approved April 10, 1996. Published June 1996. Originally
nient method of checking general conformity to temper and
published as B 455 – 67. Last previous edition B 455 – 91.
Annual Book of ASTM Standards, Vol 02.01.
tensile requirements. For assistance in testing, the minimum
Annual Book of ASTM Standards, Vol 03.01.
Rockwell B hardness of M30 (as hot-extruded) temper shapes
Annual Book of ASTM Standards, Vol 03.05.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
B 455
TABLE 1 Chemical Requirements
additional information which supplements that appearing in
Composition, % Specification B 249. In case of conflict this specification shall
prevail.
Copper Alloy Copper Alloy
Element
UNS No. UNS No.
C38000 C38500
9. Sampling
Copper 55.0–60.0 55.0–59.0
9.1 Lot size, portion size, and selection of sample pieces
Lead 1.5–2.5 2.5–3.5
Zinc remainder remainder shall be as follows:
Iron, max 0.35 0.35
9.1.1 Lot Size—An inspection lot shall be 5000 lb (2275 kg)
Tin, max 0.30 .
Aluminum, max 0.50 . or fraction thereof, of the same mill form, alloy, and nominal
dimensions, subject to inspection at one time.
9.1.2 Portion Size—The portion shall be two individual
TABLE 2 Mechanical Requirements
pieces of the lot selected as to be representative of the lot.
Copper Alloy
9.2 Chemical Analysis:
UNS Nos.
9.2.1
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