ASTM A534-17(2022)
(Specification)Standard Specification for Carburizing Steels for Anti-Friction Bearings
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
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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A534 −17 (Reapproved 2022)
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 U.S. Department of Defense.
1. Scope* A752 Specification for General Requirements forWire Rods
3
and Coarse Round Wire, Alloy Steel (Withdrawn 2011)
1.1 This specification covers the requirements for carburiz-
E45 Test Methods for Determining the Inclusion Content of
ing bearing-quality steel to be used in the manufacture of
Steel
anti-friction bearings.
E112 Test Methods for Determining Average Grain Size
1.2 Supplementary requirements of an optional nature are
E381 Method of Macroetch Testing Steel Bars, Billets,
provided and when desired shall be so stated in the order.
Blooms, and Forgings
E1019 Test Methods for Determination of Carbon, Sulfur,
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
Alloys by Various Combustion and Inert Gas Fusion
conversions to SI units that are provided for information only
and are not considered standard. Techniques
E1077 Test Methods for Estimating the Depth of Decarbur-
1.4 This international standard was developed in accor-
ization of Steel Specimens
dance with internationally recognized principles on standard-
4
2.2 ISO Standard:
ization established in the Decision on Principles for the
ISO 683 Part 17: Ball and Roller Bearing Steels
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3. Ordering Information
Barriers to Trade (TBT) Committee.
3.1 Orders for material under this specification should
include the following information:
2. Referenced Documents
3.1.1 Quantity,
2
2.1 ASTM Standards:
3.1.2 Alloy grade identification,
A29/A29M SpecificationforGeneralRequirementsforSteel
3.1.3 Specification designation and year of issue,
Bars, Carbon and Alloy, Hot-Wrought
3.1.4 Dimensions, shape, and
A255 Test Methods for Determining Hardenability of Steel
3.1.5 Supplementary requirements.
A304 Specification for Carbon andAlloy Steel Bars Subject
to End-Quench Hardenability Requirements
4. Materials and Manufacture
A510/A510M Specification for General Requirements for
4.1 The steel shall be made by a process that is capable of
Wire Rods and Coarse Round Wire, Carbon Steel, and
providing a high quality product meeting the requirements of
Alloy Steel
this specification.
A519/A519M Specification for Seamless Carbon and Alloy
Steel Mechanical Tubing
5. Chemical Composition and Analysis
A751 Test Methods and Practices for Chemical Analysis of
5.1 Typical examples of chemical compositions are shown
Steel Products
in Table 1. Other compositions may be specified.
5.2 An analysis of each heat of steel shall be made by the
steel manufacturer in accordance with Test Methods and
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Practices A751. The chemical composition thus determined
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.28 on Bearing and Power Transmission Steels. shall conform to the requirements specified in Table 1 for the
Current edition approved March 1, 2022. Published March 2022. Originally
approved in 1965. Last previous edition approved in 2017 as A534 – 17. DOI:
3
10.1520/A0534-17R22. The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from International Organization for Standardization (ISO), ISO
Standards volume information, refer to the standard’s Document Summary page on Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
the ASTM website. Switzerland, http://www.iso.org.
*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 ----------------------
A534 − 17 (2022)
A,B
TABLE 1 Chemical Composition
C D
ISO 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 0.02
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.