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This specification covers requirements for ferrous and nonferrous inch balls. The balls are intended for use in bearings, bearing applications, check valves, and other components using balls. These balls are classified into fourteen kinds according to their chemical composition: Composition 1 (chrome alloy steel), Composition 2 (corrosion-resistance hardened steel), Composition 3 (carbon steel), Composition 4 (silicon molybdenum steel), Composition 5 (brass), Composition 6 (bronze), Composition 7 (aluminum bronze), Composition 8 (beryllium copper alloy), Composition 9 (nickel-copper alloy or Monel), Composition 10 (nickel-copper-aluminum alloy or K-Monel), Composition 11 (aluminum alloy), Composition 12 (tungsten carbide), Composition 13 (premium quality bearing steel or double vacuum melted M-50), and Composition 14 (corrosion resisting unhardened steel). Ball samples shall be subjected to a series of tests in order to determine the following properties: density, hardness, fracture grain size, porosity, surface roughness, decarburization, case depth, and passivation. Eddy current test, visual test, and dimensional test shall also be performed.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers requirements for ferrous and nonferrous inch balls. The balls covered in this specification are intended for use in bearings, bearing applications, check valves, and other components using balls.
1.2 This is a general specification. The individual item requirements shall be as specified herein in accordance with the Annex A2 through Annex A9 MS sheet standards. In the event of any conflict between requirements of this specification and the Annex A2 through Annex A9 MS sheet standards, the latter shall govern.
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 specification contains many of the requirements of MIL-B-1083, which was originally developed by the Department of Defense and maintained by the Defense Supply Center Richmond. The following government activity codes may be found in the Department of Defense, Standardization Directory SD-1.
|Preparing Activity||Custodians||Review Activities|
|DLA-GS||Army-AT||Army-AV, EA, AR, MI|
|Air Force-99||Air Force- 11, 84|
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A108 Specification for Steel Bar, Carbon and Alloy, Cold-Finished
A276 Specification for Stainless Steel Bars and Shapes
A295 Specification for High-Carbon Anti-Friction Bearing Steel
B21/B21M Specification for Naval Brass Rod, Bar, and Shapes
B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
B276 Test Method for Apparent Porosity in Cemented Carbides
B283 Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
D3951 Practice for Commercial Packaging
E18 Test Methods for Rockwell Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E384 Test Method for Knoop and Vickers Hardness of Materials
ANSI StandardsANSI/ASQCZ1.4 Sampling Procedures and Tables for Inspection by Attributes
Federal StandardsQQ-N-286 Specification for Nickel-Copper Aluminum Alloy, Wrought
ISO StandardISO3290 Rolling Bearings, Bearing Parts, Balls for Rolling Bearings
ICS Number Code 23.060.20 (Ball and plug valves)
UNSPSC Code 31171539(Bearing ball)
ASTM F2215-08, Standard Specification for Balls, Bearings, Ferrous and Nonferrous for Use in Bearings, Valves, and Bearing Applications, ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top