ASTM B121/B121M-01(2006)
(Specification)Standard Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar
Standard Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar
ABSTRACT
This specification establishes the requirements leaded brass plates, sheets, strips, and rolled bars made from UNS C33500, C34000, C34200, C34000, C35000, C35300, or C35600 copper-zinc-lead alloys. Each product should be manufactured by hot or cold working, and annealed if required, to produce a uniform wrought structure that meets the specified temper properties. This specification also contains information on the standard tempers of rolled and annealed materials as well as the required tensile strength, Rockwell hardness, and grain sizes. The Rockwell hardness test can be used to test for general conformity to the specification requirements for temper, tensile strength and grain size.
SCOPE
1.1 This specification establishes the requirements for copper-zinc-lead alloys (leaded brass) plate, sheet, strip, and rolled bar. The following alloys are covered:
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
General Information
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Standards Content (Sample)
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Designation: B121/B121M – 01 (Reapproved 2006)
Standard Specification for
Leaded Brass Plate, Sheet, Strip, and Rolled Bar
This standard is issued under the fixed designation B121/B121M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* B248M Specification for General Requirements for
Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
1.1 This specification establishes the requirements for
Rolled Bar (Metric)
copper-zinc-lead alloys (leaded brass) plate, sheet, strip, and
B601 Classification for Temper Designations for Copper
rolled bar. The following alloys are covered:
and Copper Alloys—Wrought and Cast
Nominal Composition, %
B846 Terminology for Copper and Copper Alloys
Copper Alloy Previously Used
UNS No. Designation Copper Zinc Lead Iron
E8 Test Methods for Tension Testing of Metallic Materials
E8M Test Methods for Tension Testing of Metallic Materi-
C33500 2 65.0 34.5 0.5 .
als [Metric]
C34000 3 65.0 34.0 1.0 .
C34200 5 65.0 33.0 2.0 .
E76 Test Methods for ChemicalAnalysis of Nickel-Copper
C35000 . 61.5 37.4 1.1 .
Alloys
C35300 4 61.2 37.0 1.8 .
E478 TestMethodsforChemicalAnalysisofCopperAlloys
C35600 6 61.2 36.3 2.5 .
E527 Practice for Numbering Metals and Alloys in the
1.2 The values stated in either inch-pound units or SI units
Unified Numbering System (UNS)
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each
3. General Requirements
system are not exact equivalents; therefore, each system shall
3.1 The following sections of Specification B248 constitute
be used independently of the other. Combining values from the
part of this specification:
two systems may result in nonconformance with the specifi-
3.1.1 Terminology—Definitions,
cation.
3.1.2 Materials and Manufacturing,
3.1.3 Workmanship, Finish, and Appearance,
2. Referenced Documents
3.1.4 Sampling—except for chemical analysis,
2.1 ThefollowingdocumentsinthecurrentissueofBookof
3.1.5 Number of Tests and Retests,
Standards form a part of this specification to the extent
3.1.6 Specimen Preparation,
referenced herein:
3.1.7 Test Methods—except for chemical analysis,
2.2 ASTM Standards:
3.1.8 Significance of Numerical Limits,
B248 Specification for General Requirements for Wrought
3.1.9 Inspection,
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
3.1.10 Rejection and Rehearing,
Bar
3.1.11 Certification,
3.1.12 Test Reports (Mill),
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
3.1.13 Packaging and Package Marking, and
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
3.1.14 Supplementary Requirements.
Sheet, and Strip.
3.2 In addition, when a section with a title identical to that
Current edition approved Feb. 1, 2006. Published February 2006. Originally
referenced in 4.1 appears in this specification, it contains
approved in 1939. Last previous edition approved in 2001 as B121/B121M – 01.
DOI: 10.1520/B0121_B0121M-01R06.
additional requirements, which supplement those appearing in
The UNS system for copper and copper alloys (see Practice E527) is a simple
Specification B248.
expansion of the former standard designation system accomplished by the addition
of a prefix “C” and suffix “00.”The suffix can be used to accommodate composition
variations of the base alloy
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.
*ASummary 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.
B121/B121M – 01 (2006)
4. Terminology 7.2 These specification limits do not preclude the presence
of other elements. Limits for unnamed elements may be
4.1 Definitions—For standard terms related to copper and
established by agreement between manufacturer or supplier
copper alloys, refer to Terminology B846.
and purchaser.
5. Ordering Information 7.3 Either copper or zinc may be taken as the difference
between the sum of all elements analyzed and 100 %.When all
5.1 Orders for product should include the following infor-
elements in Table 1 are analyzed, their sum shall be as shown
mation, as applicable:
in the table below.
5.1.1 ASTM designation and year of issue (B121/
Copper Plus Named
B121M – XX).
Copper Alloy UNS No. Elements, % min.
5.1.2 Copper (alloy) UNS No. designation,
5.1.3 Temper (Section 8),
C33500 99.6
C34000 99.6
5.1.4 Dimensions: thickness and width (see 12.1.1 and
C34200 99.6
12.1.2),
C35000 99.6
5.1.5 Type of edge, if required: slit, sheared, sawed, square C35300 99.5
C35600 99.5
corners,roundedcorners,roundededges,orfull-roundededges
(see 12.1.5),
8. Temper
5.1.6 How furnished (straight lengths or coils),
5.1.7 Lengths (see 12.1.3), 8.1 Rolled Material—The standard tempers of rolled prod-
uct are as designated inTable 2 in the column entitled “Temper
5.1.8 Weight: total for each size, and
5.2 In addition, when product is purchased for agencies of Standard.” Special or nonstandard tempers are subject to
negotiation between manufacturer or supplier and purchaser.
the U. S. government, it shall conform to the Supplementary
Requirements as defined in Specification B248 or B248M 8.2 Annealed Material—The standard tempers of annealed
product are as designated in Table 3 in the column entitled
when specified in the contract or purchase order.
“Standard Temper Designation.” Special or nonstandard tem-
6. Materials and Manufacture
pers are subject to negotiation between manufacturer or sup-
plier and purchaser.
6.1 Material:
6.1.1 The material of manufacture shall be a cast bar, cake,
slab, and so forth. of copper alloy UNS No. C35500, C34000, 9. Mechanical Property Requirements
C34200, C35000, C35300, or C35600 as specified in the
9.1 Tensile Strength:
ordering information.
9.1.1 Products ordered to this specification in inch-pound
6.1.2 In the event that heat identification or traceability is
units shall be tested in accordance with Test Methods E8, and
required, the purchaser shall specify the details desired.
shall conform to tensile strength requirements prescribed in ksi
units in Table 2.
NOTE 1—Because of the discontinuous nature of the processing of
9.1.2 Products ordered to this specification in SI units shall
castings into wrought products, it is not always practical to identify a
specific casting analysis with a specific quantity of finished material. be tested in accordance with Test Methods E8M, and shall
conform to tensile strength requirements prescribed in MPa
6.2 Manufacture:
units in Table 2.
6.2.1 The product shall be manufactured by such hot work-
9.1.3 Acceptance or rejection of roll temper product based
ing, cold working, and annealing processes as to produce a
on mechanical properties shall depend only on the tensile
uniform wrought structure in the finished product.
strength.
6.2.2 Theproductshallbehotorcoldworkedtothefinished
9.2 Rockwell Hardness:
size and subsequently annealed, when required, to meet the
9.2.1 Rockwell hardness tests offer a quick and convenient
temper properties specified in the ordering information.
method of checking leaded brass of any temper for general
6.2.3 Edges—Slit edges shall be furnished unless otherwise
conformity to the requirements for tensile strength or grain
specified in the contract or purchase order.
size. The approximate Rockwell hardness values for the rolled
7. Chemical Composition
tempers are given in Table 2, and those for the annealed
tempers of material 0.015 in. [0.381 mm] and over in thickness
7.1 The materials shall conform to the compositions pre-
are given in Table 4 for general information and assistance in
scribed in Table 1.
testing.
9.2.2 Rockwell hardness test results shall not be used as a
TABLE 1 Chemical Requirements
basis for product rejection.
Composition
Copper Alloy
UNS No.
Copper Lead Iron Zinc
10. Grain Size forAnnealed Tempers
C33500 62.0–65.0 0.25–0.7 0.10 max remainder
10.1 Grain size shall be the standard requirement for all
C34000 62.0–65.0 0.8–1.5 0.10 max remainder
C34200 62.0–65.0 1.5–2.5 0.10 max remainder products in the
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