ASTM B21/B21M-01e1

Standard Specification for Naval Brass Rod, Bar, and Shapes

SCOPE
1.1 This specification establishes the requirements for naval brass rod, bar, and shapes produced from Copper Alloys UNS No. C46200, C46400, C47940, C48200, or C48500.
1.1.1 For piston-finish rod or shafting refer to the Other Requirements Section.
1.1.2 For hot forging material, refer to Specification B 124/B 124M.
1.2 Units—The values stated in inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values 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.
1.3 Warning—Mercury is a definite health hazard in use and disposal (see Performance Requirements).
1.4 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 determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Apr-2001
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.02 - Rod, Bar, Wire, Shapes and Forgings

Relations

• Replaces: ASTM B21/B21M-01 - Standard Specification for Naval Brass Rod, Bar, and Shapes
• Effective Date: 10-Apr-2001
• Replaced By: ASTM B21/B21M-06 - Standard Specification for Naval Brass Rod, Bar, and Shapes
• Effective Date: 01-Feb-2006
• Referred By: ASTM F1387-23 - Standard Specification for Performance of Piping and Tubing Mechanically Attached Fittings
• Effective Date: 10-Apr-2001
• Referred By: ASTM F2215-15 - Standard Specification for Balls, Bearings, Ferrous and Nonferrous for Use in Bearings, Valves, and Bearing Applications
• Effective Date: 10-Apr-2001
• Referred By: ASTM F1182-07(2023) - Standard Specification for Anodes, Sacrificial Zinc Alloy
• Effective Date: 10-Apr-2001
• Referred By: ASTM B249/B249M-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
• Effective Date: 10-Apr-2001
• Referred By: ASTM F1370-92(2019)e1 - Standard Specification for Pressure-Reducing Valves for Water Systems, Shipboard
• Effective Date: 10-Apr-2001
• Referred By: ASTM F1508-96(2021) - Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services
• Effective Date: 10-Apr-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
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Designation: B 21/B 21M – 01
Standard Specification for
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Naval Brass Rod, Bar, and Shapes
This standard is issued under the fixed designation B 21/B 21M; 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.
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e NOTE—Section 1.4 was added editorially in January 2003.
1. Scope * Stress Corrosion Cracking in Copper Alloys Using an
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Ammonia Vapor Test
1.1 This specification establishes the requirements for naval
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E 8 Test Methods forTensionTesting of Metallic Materials
brass rod, bar, and shapes produced from Copper Alloys UNS
E 8M Test Method for Tension Testing of Metallic Materi-
No. C46200, C46400, C47940, C48200, or C48500.
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als (Metric)
1.1.1 For piston-finish rod or shafting refer to the Other
E 18 Test Methods for Rockwell Hardness and Rockwell
Requirements Section.
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Superficial Hardness of Metallic Materials
1.1.2 For hot forging material, refer to Specification B 124/
E 478 Test Methods for Chemical Analysis of Copper
B 124M.
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Alloys
1.2 Units—The values stated in inch-pound units or SI units
are to be regarded separately as standard. Within the text, SI
3. General Requirements
units are shown in brackets. The values in each system are not
3.1 The following sections of Specification B 249/B 249M
exact equivalents; therefore, each system shall be used inde-
constitute a part of this specification:
pendentlyoftheother.Combiningvaluesfromthetwosystems
3.1.1 Terminology,
may result in nonconformance with the specification.
3.1.2 Materials and Manufacture,
1.3 Warning—Mercury is a definite health hazard in use
3.1.3 Workmanship, Finish, and Appearance,
and disposal (see Performance Requirements).
3.1.4 Sampling,
1.4 This standard does not purport to address all of the
3.1.5 Number of Tests and Retests,
safety concerns, if any, associated with its use. It is the
3.1.6 Specimen Preparation,
responsibility of the user of this standard to establish appro-
3.1.7 Test Methods,
priate safety and health practices and determine the applica-
3.1.8 Significance of Numerical Limits,
bility of regulatory limitations prior to use.
3.1.9 Inspection,
2. Referenced Documents 3.1.10 Rejection and Rehearing,
3.1.11 Certification,
2.1 ASTM Standards:
3.1.12 Mill Test Report,
B 124/B 124M Specification for Copper and Copper-Alloy
2 3.1.13 Packaging and Product Marking, and
Forging Rod, Bar, and Shapes
3.1.14 Supplementary Requirements.
B 154 Test Method for Mercurous Nitrate Test for Copper
2 3.2 In addition, when a section with a title identical to that
and Copper Alloys
referenced in 3.1, above, appears in this specification, it
B 249/B 249M Specification for General Requirements for
contains additional requirements which supplement those ap-
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
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pearing in Specification B 249/B 249M.
Forgings
B 601 Classification for Temper Designations for Copper
4. Ordering Information
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and Copper Alloys—Wrought and Cast
4.1 Include the following when ordering product under this
B 858 Test Method for Determination of Susceptibility to
specification:
4.1.1 ASTM designation and year of issue,
4.1.2 Copper Alloy UNS No. designation (Scope),
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ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1.3 Temper (Temper Section and related Tables),
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings.
Current edition approved April 10, 2001. Published August 2001. Originally
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published as B 21 – 18T. Last previous edition B 21 – 00. Annual Book of ASTM Standards, Vol 03.01.
2 4
Annual Book of ASTM Standards, Vol 02.01. Annual Book of ASTM Standards, Vol 03.06.
*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.
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B 21/B 21M – 01
TABLE 1 Chemical Requirements
4.1.4 Form: cross-section such as round, hexagonal, square,
and so forth, Copper Alloy UNS No.
Element,
4.1.5 Diameter or distance between parallel surfaces, width %
C46200 C46400 C47940 C48200 C48500
and thickness (Dimensions and Permissible Variations),
Copper 62.0–65.0 59.0–62.0 63.0–66.0 59.0–62.0 59.0–62.0
4.1.6 Length (Dimensions and Permissible Variations), Tin 0.50–1.0 0.50–1.0 1.2–2.0 0.50–1.0 0.50–1.0
Lead 0.20 max 0.20 max 1.0–2.0 0.40–1.0 1.3–2.2
4.1.7 Edge contours (Dimensions and Permissible Varia-
Zinc remainder remainder remainder remainder remainder
tions),
Iron 0.10 max 0.10 max 0.10–1.0
...