ASTM A866-01

Standard Specification for Medium Carbon Anti-Friction Bearing Steel

ABSTRACT
This specification covers the standard specification for medium carbon bearing quality steel to be used in the manufacture of anti-friction bearings. The bearings shall conform to the required chemical composition for carbon, phosphorus, manganese, sulfur, silicon, chromium, molybdenum, vanadium, copper, oxygen and aluminum. Requirement for dimensional tolerances of hot-rolled or hot-rolled and annealed bars, in straight lengths or coils, and cold-finished bars and larger in diameter furnished shall conform to the specified size, shape and tolerances. The grain size of the material shall conform to the required size, otherwise it shall be normalized and retested. Decarburization and surface imperfection shall not exceed the limit in the specified values. Material may be ordered as hot rolled or thermally treated. No hardness limits shall apply for as-hot-rolled materials.
SCOPE
1.1 This specification covers medium carbon 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: 09-Dec-2001
• 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 A866-94 - Standard Specification for Medium Carbon Anti-Friction Bearing Steel
• Effective Date: 10-Dec-2001
• Replaced By: ASTM A866-09 - Standard Specification for Medium Carbon Anti-Friction Bearing Steel
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A866 – 01
Standard Specification for
1
Medium Carbon Anti-Friction Bearing Steel
This standard is issued under the fixed designation A866; 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.
1. Scope 4. Materials and Manufacture
1.1 This specification covers medium carbon bearing qual- 4.1 Process:
ity steel to be used in the manufacture of anti-friction bearings. 4.1.1 The steel shall be made by a process that is capable of
1.2 Supplementary requirements of an optional nature are providing a high quality product meeting the requirements of
provided and when desired shall be so stated in the order. this specification.
1.3 The values stated in inch-pound units are to be regarded
5. Chemical Composition and Analysis
as the standard.
5.1 Typical examples of chemical composition are shown in
2. Referenced Documents
Table 1. Other compositions may be specified.
2
2.1 ASTM Standards: 5.2 An analysis of each heat of steel shall be made by the
A29/A29M Specification for Steel Bars, Carbon and Alloy, steel manufacturer in accordance withTest Methods, Practices,
3
Hot-Wrought, General Requirements for and Terminology A751. The chemical composition thus deter-
A751 Test Methods, Practices, andTerminology for Chemi- mined shall conform to the requirements specified in Table 1
4
cal Analysis of Steel Products for the ordered grade or to other requirements agreed upon
E45 Test Methods for Determining the Inclusion Content of between the manufacturer and the purchaser.
4
Steel 5.3 Product analysis may be made by the purchaser in
4
E112 Test Methods for Determining Average Grain Size accordance with Test Methods, Practices, and Terminology
E381 Method of Macroetch Testing Steel Bars, Billets, A751. Permissible variations in product analysis shall be in
5
Blooms, and Forgings accordance with Specification A29/A29M.
E1019 Test Methods for Determination of Carbon, Sulfur,
6. Sizes, Shapes, and Dimensional Tolerances
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
4
Alloys by Various Combustion and Fusion Techniques 6.1 The physical size and shape of the material shall be
agreed upon between the manufacturer and the purchaser.
E1077 Test Methods for Estimating the Depth of Decarbur-
ization of Steel Specimens 6.2 Dimensional tolerances for hot-rolled or hot-rolled and
annealed bars, in straight lengths or coils, and cold-finished
2.2 ISO Standard:
ISO 683 Part 17: Ball and Roller Bearing Steels bars0.500in.(12.7mm)andlargerindiameterfurnishedunder
this specification shall conform to the requirements specified in
3. Ordering Information
the latest edition of Specification A29/A29M.
3.1 Orders for material under this specification should 6.3 Dimensional tolerances for cold-finished coils for ball
include the following information: and roller material shall be as shown in Table 2.
3.1.1 Quantity (weight or pieces), 6.4 Coil tolerances also apply to cold-finished straight
3.1.2 Grade identification, lengths under 0.500 in. in diameter.
3.1.3 ASTM designation and year of issue,
7. Quality Tests
3.1.4 Dimensions, and
3.1.5 Supplementary requirements, if included. 7.1 The supplier shall be held responsible for the quality of
the material furnished and shall make the necessary tests to
ensure this quality. The supplier shall be required to report on
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
the results of the macroetch and micro-inclusion rating tests
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
detailed below. Quality tests shown in 7.2 through 7.4 are
A01.28 on Bearing Steels.
Current edition approved Dec. 10, 2001. Published February 2002. Originally
based upon procedures established in Practice E45.
published as A866–87. Last previous edition A866–94. DOI: 10.1520/A0866-01.
7.2 Sampling—Samples taken in accordance with the fol-
2
Annual Book of ASTM Standards, Vol 01.05.
3 lowing paragraphs shall be obtained from 4 by 4 in. (102 by
Annual Book of ASTM Standards, Vol 01.03.
4
102 mm) rolled billets or forged sections. Tests may be made
Annual Book of ASTM Standards, Vol 03.01.
5
Annual Book of ASTM Standards, Vol 03.06.
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A866 – 01
A,B
TABLE 1 Chemical Composition
C D
Number Name C Mn P (max) S (max) Si Cr Mo V Cu (max) O (max) Al (max)
. . . 1030 0.28 to 0.34 0.60 to 0.90 0.025 0.025 0.15 to 0.35 . . . . . . . . . 0.30 0.0020 0.050
. . . 1040 0.37 to 0.44 0.60 to 0.90 0.025
...