ASTM_B_23_-_00_2014.pdf

Designation:B2300(Reapproved 2014)Standard Specification forWhite Metal Bearing Alloys(Known Commercially as“Babbitt Metal”)1This standard is issued under the fixed designation B23;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()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.Scope1.1 This specification covers eight typical white metalbearing alloys,in bar or ingot form,known commercially as“babbitt metal.”The alloys are specified,covering the rangecommercially used,and are designated by the alloy numbersshown in Table 1.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to establish appropriatesafety and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE57 Methods for ChemicalAnalysis of White Metal BearingAlloys(Withdrawn 1986)33.Ordering Information3.1 Orders for materials under this specification shall in-clude the following information:3.1.1 Name of material(white metal bearing alloy),3.1.2 Form and nominal weight of individual bars,3.1.3 Quantity,3.1.4 Alloy number,3.1.5 Inspection required(Section 9),3.1.6 Certification required(Section 10),3.1.7 Marking required(Section 11),and3.1.8 ASTM designation and year of issue.4.Materials and Manufacture4.1 The bars or ingots shall be made in accordance withsuch practice as to obtain the chemical composition,weight,and dimensions as prescribed in this specification.4.2 The bars or ingots shall be as uniform in quality aspracticable.5.Chemical Composition5.1 The alloys covered by this specification shall conform tothe requirements for chemical composition prescribed in Table1.5.2 By agreement between manufacturer and purchaser,analysis may be required and limits established for elementsnot specified in Table 1.6.Dimensions and Weights6.1 The babbitt shall be furnished in bars of a convenientweight and size for handling.Unless otherwise agreed upon,nounnotched bar shall exceed 10 lb(4.5 kg)in weight,nornotched bar exceed 15 lb(6.8 kg).6.2 By mutual agreement,babbitt may be furnished in smallround bars about 3.5 in.(90 mm)in diameter.7.Sampling7.1 Three bars shall be selected to represent a shipment ofless than 1000 lb(450 kg),five bars to represent a shipment of1000 lb to 10 000 lb(4500 kg)inclusive,and ten bars torepresent a shipment of over 10 000 lb to one carload.7.2 Saw cuts shall be made at points in the bars as indicatedin Fig.1.No lubricants shall be used for sawing.The savings1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.02 on Refined Lead,Tin,Antimony,and Their Alloys.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1926.Last previous edition approved in 2010 as B23 00(2010).DOI:10.1520/B0023-00R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 shall be carefully treated with a magnet to remove any particlesof steel introduced in taking the sample.7.3 When babbitt is furnished in bars under 5 lb(2.3 kg)inweight,three bars shall be considered the equivalent of one bar(6.1)for sampling purposes.These may be remelted in a cleanutensil at a temperature slightly above the liquids point of thealloy,mixed thoroughly,poured into a cold mold forming aconvenient size bar,and then handled in accordance with 6.2.7.4 Savings,thoroughly mixed,shall be separated into threeequal portions,each of which shall be placed in a sealedpackage,one for the manufacturer,one for the purchaser,andone for an umpire,if necessary.Each portion should exceed0.74 oz.(21 g)in weight.7.5 When bars,by agreement,exceed 15 lb(6.8 kg)inweight,the number of sample bars taken and the samplingprocedure shall be by agreement between the manufacturer andthe