ASTM B21M-96

Standard Specification for Naval Brass Rod, Bar, and Shapes [Metric] (Withdrawn 2001)

SCOPE
1.1 This specification establishes the requirements for naval brass rod, bar, and shapes produced from Copper Alloys UNS Nos. C46200, C46400, C47940, C48200, or C48500.  
1.1.1 For piston-finish rod or shafting, refer to Section 9.  
1.2 This specification is the companion to inch-pound Specification B21.  
1.3 Warning-Mercury is a definite health hazard in use and disposal (see 8.1).  Note 1-For hot forging material, refer to Specification B124.

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1995
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.02 - Rod, Bar, Wire, Shapes and Forgings

Standards Content (Sample)

ASTM B21M 96 = 0759510 0580721 564 =
AMERICAN SOCIETY FOR TESTING AND MATERIALS
Designation: B 21M - 96
100 Barr Harbor Dr , West Conshohocken. PA 1942ö
METRIC Reprinted from the Annual Book of ASTM Standards Copynght ASTM
If not listed in the current combined index. will appear in the next edition
Standard Specification for
Naval Brass Rod, Bar, and Shapes [Metric]’
This standard is issued under the fixed designation 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 specificaiion has been approved for use by agencies of ihe Department of Defense. Consuli the DoD Index of Specijications and
Standards for lhe specjîc year of issue which has been adopted by the Deparimeni of Defense.
3.1.5 Diameter or distance between parallel surfaces
1. Scope*
(Section 1 1.2),
1.1 This specification establishes the requirements for
3.1.6 Length (Section 1 1.4),
naval brass rod, bar, and shapes produced from Copper
3.1.7 Edge contours (Section 1 1.6),
Alloys UNS Nos. C46200, C46400, C47940, C48200, or
3.1.8 Number of pieces or total weight, for each size and
C48500.
form, and
1.1.1 For piston-finish rod or shafting, refer to Section 9.
U.S.
3.1.9 When product is specified for agencies of the
1.2 This specification is the companion to inch-pound
Government (Section 10).
Specification B 2 1,
3.2 The following are options available under this specifi-
1.3 Warning-Mercury is a definite health hazard in use
cation and are to be specified in the contract or purchase
and disposai (see 8.1).
order when required:
NOTE I-For hot forging material, refer to Specification B 124.
3.2.1 Mercurous Nitrate Test (Section 8),
3.2.2 Piston finish rod or shafting (Section 9),
2. Referenced Documents
3.2.3 Certification (Specification B 249M), and
2.1 ASTM Standards: 3.2.4 Miil test report (Specification B 249M).
B 124M Specification for Copper and Copper-Alloy
4. General Requirements
Forging Rod, Bar, and Shapes [Metric]’
B 154 Test Method for Mercurous Nitrate Test for Copper
4.1 The following sections of Specification B 249M con-
and Copper Alloys’
stitute a part of this specification:
B 249M Specification for General Requirements for
4.1.1 Terminology,
Wrought Copper and Copper-Alloy Rod, Bar, and
4.1.2 Materials and Manufacture,
Shapes [Metric]*
4.1.3 Workmanship, Finish, and Appearance,
B 601 Practice for Temper Designations for Copper and
4.1.4 Sampling,
Copper Alloys-Wrought and Cast2
4.1.5 Number of Tests and Retests,
E 8M Test Methods for Tension Testing of Metallic
4.1.6 Specimen Preparation,
Materials [MetricI3
4.1.7 Test Methods,
E 18 Test Methods for Rockwell Hardness and Rockwell
4.1.8 Significance of Numerical Limits,
Superficial Hardness3
4.1.9 Inspection,
E 478 Test Methods for Chemical Analysis of Copper
4.1.1 O Rejection and Rehearing,
Alloys4
4.1.1 1 Certification,
4.1.12 Mill Test Report,
3. Ordering Information
4.1.13 Packaging and Product Marking, and
3.1 Orders for product under this specification are to 4.1.14 Supplementary Requirements.
include the following information:
4.2 In addition, when a section with a title identical to
3.1.1 ASTM designation and year of issue,
that referenced in 4.1, above, appears in this specification, it
3.1.2 Copper Alloy UNS No. designation (Section 1. 1),
contains additional requirements which supplement those
3.1.3 Temper (Section 6),
appearing in Specification B 249M.
3.1.4 Form: cross-section such as round, hexagonal,
square, etc., 5. Chemical Composition
5.1 The product shall conform to the chemical composi-
tion requirements specified in Table 1 for the Copper Alloy
I This specification is under the jurisdiction of ASTM Committee B-5 on
UNS No. designation specified in the ordering information.
Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02
5.2 These composition limits do not preclude the pres-
on Rod, Bar, Wire, Shapes and Forgings.
Current edition approved April 10, 1996. Published June 1996. Originally
ence of other elements. Limits may be established and
published as B 21M - 80. Last previous edition B 21M - 90.
analysis required for unnamed elements by agreement be-
2 Annual Book of ASTM Siandards, Vol 02.01.
tween the manufacturer or supplier, and purchaser.
3 Annual Book of ASTM Siandards, Vol 03.0 1.
For copper alloys in which zinc is specified as the
Annual Book of ASTM Standards, Vol 03.05. 5.3
* A Summary of Changes section appears at the end of this specification.
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ASTM B2LM 96 m 0759530 0580722 4T0 m
## B21M
TABLE 1 Chemical Requirements special diameter tolerances specified in 1 1.2.3.
9.3 The straightness tolerance
...