ASTM B121/B121M-95

Standard Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar

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:Nominal Composition, %Copper AlloyPreviously UsedUNS No.DesignationCopperZincLead IronC33500265.034.5 0.5...C34000365.034.0 1.0...C34200565.033.0 2.0...C35000...61.537.4 1.1...C35300461.237.0 1.8...C35600661.236.3 2.5...
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

• Status: Historical
• Publication Date: 09-Apr-2001
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Relations

• Replaced By: ASTM B121/B121M-01 - Standard Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 10-Apr-2001
• Referred By: ASTM F1387-23 - Standard Specification for Performance of Piping and Tubing Mechanically Attached Fittings
• Effective Date: 10-Apr-2001
• Referred By: ASTM B248M-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
• Effective Date: 10-Apr-2001
• Referred By: ASTM B927/B927M-17 - Standard Specification for Brass Rod, Bar, and Shapes
• Effective Date: 10-Apr-2001
• Referred By: ASTM B248-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 10-Apr-2001
• Referred By: ASTM E18-22 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 10-Apr-2001
• Referred By: ASTM B315-19 - Standard Specification for Seamless Copper Alloy Pipe and Tube
• Effective Date: 10-Apr-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 121/B 121M – 95
Standard Specification for
Leaded Brass Plate, Sheet, Strip, and Rolled Bar
This standard is issued under the fixed designation B 121/B 121M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope Rolled Bar [Metric]
B 601 Practice for Temper Designations for Copper and
1.1 This specification covers copper-zinc-lead alloys
Copper Alloys—Wrought and Cast
(leaded brass) plate, sheet, strip, and rolled bar. The following
E 8 Test Methods for Tension Testing of Metallic Materials
alloys are covered:
E 8M Test Methods for Tension Testing of Metallic Mate-
Nominal Composition, %
rials [Metric]
Copper Alloy Previously Used
UNS No. Designation Copper Zinc Lead Iron
E 527 Practice for Numbering Metals and Alloys (UNS)
C33500 2 65.0 34.5 0.5 .
3. Ordering Information
C34000 3 65.0 34.0 1.0 .
C34200 5 65.0 33.0 2.0 .
3.1 Orders for material under the specification should in-
C35000 . 61.5 37.4 1.1 .
clude the following information:
C35300 4 61.2 37.0 1.8 .
3.1.1 Copper Alloy UNS number (Section 1),
C35340 . 61.2 36.8 1.8 0.2
C35600 6 61.2 36.3 2.5 .
3.1.2 Temper (Section 5),
3.1.3 Dimensions: thickness and width (see 9.1.1 and 9.1.2),
1.2 The values stated in either inch-pound units or SI units
3.1.4 Type of edge, if required: slit, sheared, sawed, square
are to be regarded separately as standard. Within the text, the
corners, rounded corners, rounded edges, or full-rounded edges
SI units are shown in brackets. The values stated in each
(see 9.1.5),
system are not exact equivalents; therefore, each system shall
3.1.5 How furnished (straight lengths or coils),
be used independently of the other. Combining values from the
3.1.6 Lengths (see 9.1.3),
two systems may result in nonconformance with the specifi-
3.1.7 Weight: total for each size, and
cation.
3.1.8 ASTM Specification B 121/B 121M, year of issue,
2. Referenced Documents
and whether inch-pound or SI units are applicable (see 1.2).
3.2 In addition, when material is purchased for agencies of
2.1 The following documents of the issue in effect on date
the U. S. Government, it shall conform to the Supplementary
of material purchase form a part of this specification to the
Requirements as defined in Specification B 248 or B 248M
extent referenced herein:
when specified in the contract or purchase order.
2.2 ASTM Standards:
B 248 Specification for General Requirements for Wrought
4. Chemical Composition
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
4.1 The materials shall conform to the compositions pre-
Bar
scribed in Table 1.
B 248M Specification for General Requirements for
4.2 These specification limits do not preclude the presence
Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
of other elements. Limits for unnamed elements may be
established by agreement between manufacturer or supplier
This specification is under the jurisdiction of ASTM Committee B05 on Copper
and purchaser.
and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
Sheet, and Strip.
4.3 Either copper or zinc may be taken as the difference
Current edition approved Sept. 10, 1995. Published November 1995. Originally
between the sum of all elements analyzed and 100 %. When all
published as B 121 – 39 T. Last previous edition B 121 – 91.
The UNS system for copper and copper alloys (see Practice E 527) is a simple
expansion of the former standard designation system accomplished by the addition
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
Annual Book of ASTM Standards, Vol 03.01.
composition variations of the base alloy.
Annual Book of ASTM Standards, Vol 01.01.
Annual Book of ASTM Standards, Vol 02.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
B 121/B 121M
TABLE 1 Chemical Requirements TABLE 3 Grain Size Requirements for Annealed Material
Composition Standard
Grain Size, mm
Copper Alloy
Copper Alloy UNS No. Temper
UNS No.
Copper Lead Iron Zinc
Nominal Min Max
Designation
C33500 62.0–65.0 0.25–0.7 0.10 max remainder
OS070 0.070 0.050 0.100
C33500, C34000,
C34000 62.0–65.0 0.8–1.5 0.10 max remainder
OS050 0.050 0.035 0.070
C34200, C35000,
C34200 62.0–65.0 1.5–2.5 0.10 max remainder
OS035 0.035 0.025 0.050
C34300, C34340,
C35000 60.0–63.0 0.8–2.0 0.10 max remainder
and C35600
OS025 0.025 0.015 0.035
C35300 60.0–63.0 1.5–2.5 0.10 max remainder
C35340 60.0–63.0 1.5–2.5 0.10–0.30 remainder
C35600 60.0–63.0 2.0–3.0 0.10 max remainder
6.1.2 Products ordered to this specification in SI units shall
be tested in accordance with Test Methods E 8M, and shall
elements in Table 1 are analyzed, their sum shall be as shown
conform to tensile strength requirements prescribed in MPa
in the table below.
units in Table 2.
Copper Plus Named 6.1.3 Acceptance or rejection based on mechanical proper-
Copper Alloy UNS No. Elements, % min.
ties shall depend only on the tensile strength.
C33500 99.6
7. Grain Size Requirements of Annealed Tempers
C34000 99.6
C34200 99.6
7.1 Grain size shall be the standard test for material of all
C35000 99.6
thicknesses in annealed tempers, and acceptance or rejection
C35300 99.5
shall depend only on the grain size. The average grain size of
C35340 99.5
C35600 99.5
each of two samples of annealed material as determined on a
plane parallel to the surface of the material shall be within the
5. Temper
limits prescribed in Table 3.
5.1 Rolled Material—The standard tempers of rolled mate-
8. Rockwell Hardness
rial are as designated in Table 2 in the column entitled “Temper
Standard.” Special or nonstandard tempers are subject to
8.1 Rockwell hardness tests offer a quick and convenient
negotiation between manufacturer or supplier and purchaser
method of checking leaded brass of any temper for general
(see 3.1.2).
conformity
...