ASTM B427-09

Standard Specification for Gear Bronze Alloy Castings

ABSTRACT
This specification establishes requirements for gear bronze alloy castings with Copper Alloy No. C90800, C91700, C90700, C91600, and C92900. The castings may be furnished as one of three types: static chill, centrifugal chill, or sand cast. The alloys shall be subject to tensile strength, yield strength, elongation, and Brinell hardness tests. The Brinell readings shall be taken on the grip end of the tension test bar as described in the specification.
SCOPE
1.1 This specification establishes requirements for alloys whose copper alloy numbers and nominal compositions are shown in Table 1. The castings may be furnished as one of three types: static chill, centrifugal chill, or sand cast.
1.2 The values stated in inch-pound units are to be regarded as the standard. SI values given in parentheses are for information purposes only.
TABLE 1 Nominal Composition   Copper
Alloy
UNS No.Previously
Used
DesignationComposition, % CopperTinNickelLeadPhos-
phorus C90800A87.812.0...00.2 C91700B86.312.01.500.2 C90700...87.811.0...00.2 C91600C88.010.31.500.2 C92900D83.510.03.52.80.2

General Information

• Status: Historical
• Publication Date: 30-Sep-2009
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Relations

• Replaces: ASTM B427-02 - Standard Specification for Gear Bronze Alloy Castings
• Effective Date: 01-Oct-2009
• Referred By: ASTM B584-22 - Standard Specification for Copper Alloy Sand Castings for General Applications
• Effective Date: 01-Oct-2009
• Referred By: ASTM B824-17 - Standard Specification for General Requirements for Copper Alloy Castings
• Effective Date: 01-Oct-2009
• Referred By: ASTM B30-23 - Standard Specification for Copper Alloys in Ingot and Other Remelt Forms
• Effective Date: 01-Oct-2009

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:B427 −09
StandardSpecification for
1
Gear Bronze Alloy Castings
This standard is issued under the fixed designation B427; 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* 3.1.3 Sampling
2 3.1.4 Number of Tests and Retests
1.1 This specification establishes requirements for alloys
3.1.5 Specimen Preparation
whose copper alloy numbers and nominal compositions are
3.1.6 Certification
shown in Table 1. The castings may be furnished as one of
3.1.7 Test Reports
three types: static chill, centrifugal chill, or sand cast.
3.2 In addition, when a section with a title identical to that
1.2 The values stated in inch-pound units are to be regarded
referenced in 3.1, above, appears in this specification, it
as the standard. SI values given in parentheses are for infor-
contains additional requirements which supplement those ap-
mation purposes only.
pearing in Specification B846.
2. Referenced Documents
4. Terminology
3
2.1 ASTM Standards:
4.1 For definitions of terms related to copper and copper
B208 Practice for Preparing Tension Test Specimens for
alloys, refer to Terminology B846.
Copper Alloy Sand, Permanent Mold, Centrifugal, and
Continuous Castings
5. Ordering Information
B824 Specification for General Requirements for Copper
Alloy Castings
5.1 Include the following information when placing orders
B846 Terminology for Copper and Copper Alloys
for product under this specification:
B950 Guide for Editorial Procedures and Form of Product
5.1.1 Quantity of castings required,
Specifications for Copper and Copper Alloys
5.1.2 Copper Alloy UNS No. (Table 1),
E8 Test Methods for Tension Testing of Metallic Materials
5.1.3 Specification title, number, and year of issue,
E10 Test Method for Brinell Hardness of Metallic Materials
5.1.4 Pattern or drawing number and casting type (Section
E527 Practice for Numbering Metals and Alloys in the
1),
Unified Numbering System (UNS)
5.1.5 Repair of castings (Section 9),
5.1.6 Certification, if specified in the purchase order (Speci-
3. General Requirements
fication B824),
5.1.7 Foundry test report, if specified in the purchase order
3.1 The following sections of Specification B824 constitute
(Specification B824), and
a part of this specification.
5.1.8 Witness inspection, if specified in the purchase order
3.1.1 Terminology
3.1.2 Materials and Manufacture (Specification B824).
5.2 When product is purchased for agencies of the U.S.
Government, the Supplementary Requirements of Specifica-
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
tion B824 may be specified.
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
Current edition approved Oct. 1, 2009. Published November 2009. Originally
6. Chemical Composition
approved in 1965. Discontinued June 2002 and reinstated as B427 – 02. Last
6.1 The castings shall conform to the requirements as to
previous edition approved in 2002 as B427 – 02. DOI: 10.1520/B0427-09.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
chemical composition requirements prescribed in Table 2 for
expansion of the former standard designation system accomplished by the addition
the alloy specified.
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
composition variations of the base alloy.
6.2 These specification limits do not preclude the presence
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
of other elements. Limits may be established by agreement
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
between manufacturer or supplier and purchaser for these
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. unnamed elements. Copper may be given as remainder and
*A Summary 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
1

---------------------- Page: 1 ----------------------
B427−09
TABLE 1 Nominal Composition
10.2 Test bar castings representing castings produced in
Composition, % chill molds of metal or graphite may be cast in open keel-block
Copper Previously
Alloy Used
Phos- molds of the same material as the molds used for the castings.
Copper Tin Nickel Lead
UNS No. Designation
phorus
10.3 Separate centrifugally cast test bars shall be made in
C90800 A 87.8 12.0 . 0 0.2
accordance with Practice B208.
C91700 B 86.3 12.0 1.5 0 0.2
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B427–02 Designation: B427 – 09
Standard Specification for
1
Gear Bronze Alloy Castings
This standard is issued under the fixed designation B427; 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*
1.1This specification
2
1.1 This specification establishes requirements for alloys whose copper alloy numbers and nominal compositions are shown
in Table 1. The castings may be furnished as one of three types: static chill, centrifugal chill, or sand cast.
1.2 The values stated in inch-pound units are to be regarded as the standard. MetricSI values given in parentheses are for
information purposes only.
2. ReferReferencedenced DocumentsDocuments
2.1The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
3
2.1 ASTM Standards:
B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous
Castings
B824 Specification for General Requirements for Copper Alloy Castings
B846 Terminology for Copper and Copper Alloys
B950 Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
E8 Test Methods for Tension Testing of Metallic Materials
E10 Test Method for Brinell Hardness of Metallic Materials
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. General Requirements
3.1 The following sections of Specification B824 constitute a part of this specification.
3.1.1 Terminology
3.1.2 Materials and Manufacture
3.1.3 Sampling
3.1.4 Number of Tests and Retests
3.1.5 Specimen Preparation
3.1.6 Certification
3.1.7 Test Reports
3.2 In addition, when a section with a title identical to that referenced in 3.1, above, appears in this specification, it contains
additional requirements which supplement those appearing in Specification B846.
4. Terminology
4.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
5. Ordering Information
3.1Orders for material to this specification shall include the following information:
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
Current edition approved Dec. 10, 2002.Oct. 1, 2009. Published February 2003.November 2009. Originally approved in 1965. Discontinued June 2002 and reinstated as
B427 – 02. Last previous edition approved in 19932002 as B427–93a.B427 – 02. DOI: 10.1520/B0427-029.
2
The UNS system for copper and copper alloys (see Practice E527) 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 composition variations of the base alloy.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
, Vol 02.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary 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.
1

---------------------- Page: 1 ----------------------
B427 – 09
TABLE 1 Nominal Composition
Composition, %
Copper Previously
Alloy Used
Phos-
Copper Tin Nickel Lead
UNS No. Designation
phorus
C90800 A 87.8 12.0 . 0 0.2
C91700 B 86.3 12.0 1.5 0 0.2
C90700 . 87.8 11.0 . 0 0.2
C91600 C 88.0 10.3 1.5 0 0.2
C92900 D 83.5 10.0 3.5 2.8 0.2
3.1.1Quantity of castings required,
3.1.2Copper Alloy UNS No. (
5.1 Include the following information when placing orders for product under this specification:
5.1.1 Quantity of castings required,
5.1.2 Copper Alloy UNS No. (Table 1),
35.1.3 Specification title, number, and year of issue,
35.1.4 Pattern or drawing number and casting type (Section 1),
3.1.5Repair of castings (Section 7
5.1.5 Repair of castings (Section 9),
3.1.6Certification, if specified in the purchase order (Specification B824),
3.1.7Foundry test report, if specified in the purchase order (Specification
5.1.6 Certification, if specified in the purchase order (Specification B82
...