ASTM A534-04

Standard Specification for Carburizing Steels for Anti-Friction Bearings

ABSTRACT
This specification covers standards for carburizing steels to be used in anti-friction bearings. Materials shall conform to carbon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper, oxygen, and aluminum contents. Materials shall adhere to inclusion ratings set for thin and heavy series. Grain size and hardenability requirements shall be followed. Decarburization and surface imperfections of hot-rolled, cold-finished, or annealed bars and tubes shall not exceed specified limits as measured through microscopical methods.
SCOPE
DESIG: A534 04 ^TITLE: Standard Specification for Carburizing Steels for Anti-Friction Bearings ^SCOPE:1. Scope
1.1 This specification covers the requirements for carburizing bearing-quality steel to be used in the manufacture of anti-friction bearings.
1.2 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
1.3 The values stated in inch-pound units are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 29-Feb-2004
• ICS: 77.140.10 - Heat-treatable steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.28 - Bearing and Power Transmission Steels

Relations

• Replaces: ASTM A534-01 - Standard Specification for Carburizing Steels for Anti-Friction Bearings
• Effective Date: 01-Mar-2004
• Replaced By: ASTM A534-09 - Standard Specification for Carburizing Steels for Anti-Friction Bearings
• Effective Date: 01-Oct-2009
• Referred By: ASTM A1099/A1099M-20 - Standard Specification for Modified Alloy Steel Forgings, Forged Bar, and Rolled Bar Commonly Used in Oil and Gas Pressure Vessels
• Effective Date: 01-Mar-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A534 – 04
Standard Specification for
1
Carburizing Steels for Anti-Friction Bearings
This standard is issued under the fixed designation A534; 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* E1077 Test Methods for Estimating the Depth of Decarbur-
ization of Steel Specimens
1.1 This specification covers the requirements for carburiz-
2.2 ISO Standard:
ing bearing-quality steel to be used in the manufacture of
ISO 683 Part 17: Ball and Roller Bearing Steels
anti-friction bearings.
1.2 Supplementary requirements of an optional nature are
3. Ordering Information
provided and when desired shall be so stated in the order.
3.1 Orders for material under this specification should
1.3 The values stated in inch-pound units are to be regarded
include the following information:
as the standard.
3.1.1 Quantity,
2. Referenced Documents 3.1.2 Alloy grade identification,
2 3.1.3 Specification designation and year of issue,
2.1 ASTM Standards:
3.1.4 Dimensions, shape, and
A29/A29M Specification for Steel Bars, Carbon and Alloy,
3.1.5 Supplementary requirements.
Hot-Wrought, General Requirements for
A255 Test Methods for Determining Hardenability of Steel
4. Materials and Manufacture
A304 SpecificationforCarbonandAlloySteelBarsSubject
4.1 The steel shall be made by a process that is capable of
to End-Quench Hardenability Requirements
providing a high quality product meeting the requirements of
A510 Specification for General Requirements for Wire
this specification.
Rods and Coarse Round Wire, Carbon Steel
A519 Specification for Seamless Carbon and Alloy Steel
5. Chemical Composition and Analysis
Mechanical Tubing
5.1 Typical examples of chemical compositions are shown
A751 Test Methods, Practices, andTerminology for Chemi-
in Table 1. Other compositions may be specified.
cal Analysis of Steel Products
5.2 An analysis of each heat of steel shall be made by the
A752 Specification for General Requirements for Wire
steel manufacturer in accordance withTest Methods, Practices,
Rods and Coarse Round Wire, Alloy Steel
and Terminology A751. The chemical composition thus deter-
E45 Test Methods for Determining the Inclusion Content of
mined shall conform to the requirements specified in Table 1
Steel
for the ordered grade, or to other requirements agreed upon
E112 Test Methods for Determining Average Grain Size
between manufacturer and purchaser.
E381 Method of Macroetch Testing Steel Bars, Billets,
5.3 Product analysis may be made by the purchaser in
Blooms, and Forgings
accordance with Test MethodsA751. Permissible variations in
E1019 Test Methods for Determination of Carbon, Sulfur,
product analysis shall be in accordance with Specification
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
A29/A29M, Practices, and Terminology.
Alloys by Various Combustion and Fusion Techniques
6. Dimensions, Mass, and Permissible Variations
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
6.1 The size and shape of the material shall be agreed upon
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
between manufacturer and purchaser.
A01.28 on Bearing Steels.
6.2 Dimensional tolerances shall conform to the require-
Current edition approved March 1, 2004. Published April 2004. Originally
approved in 1965. Last previous edition approved in 2001 as A534–01. DOI: ments specified in Specifications A29/A29M, A510, A519,or
10.1520/A0534-04.
A752 as appropriate for the material or as agreed between
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
manufacturer and purchaser.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards 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.
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A534 – 04
A,B
TABLE 1 Chemical Composition
C D
Number Name C Mn P (max) S (max) Si Cr Ni Mo Cu (max) O (max) Al (max)
. . . 4118H 0.17 - 0.23 0.60 - 1.00 0.025 0.015 0.15 - 0.35 0.30 - 0.70 . . . 0.08 - 0.15 0.30 0.0020 0.050
. . . 4320H 0.17 - 0.23 0.40 - 0.70 0.025 0.015 0.15 - 0.35 0.35 - 0.65 1.55 - 2.00 0.20 - 0.30 0.30 0.0020 0.050
. . . 4620H 0.17 - 0.23 0.35 - 0.75 0.025 0.015 0.15 - 0.35 . . . 1.55 - 2.00 0.20 - 0.30 0.30 0.0020 0.050
. . . 4720H 0.17 - 0.23 0.45 - 0.75 0.025 0.015
...