ASTM_A_108_-_13.pdf

Designation:A10813Standard Specification forSteel Bar,Carbon and Alloy,Cold-Finished1This standard is issued under the fixed designation A108;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript 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*1.1 This specification covers cold-finished carbon and alloysteel bars produced in straight length and coil to chemicalcompositions.Cold-finished bars are suitable for heattreatment,for machining into components,or for use in theas-finished condition as shafting,or in constructionalapplications,or for other similar purposes(Note 1).Grades ofsteel are identified by grade numbers or by chemical compo-sition.NOTE1A guide for the selection of steel bars is contained in PracticeA400.1.2 Some end uses may require one or more of the availabledesignations shown under Supplementary Requirements.Supplementary requirements shall apply only when specifiedindividually by the purchaser.1.3 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.2.Referenced Documents2.1 ASTM Standards:2A29/A29M Specification for Steel Bars,Carbon and Alloy,Hot-Wrought,General Requirements forA304 Specification for Carbon and Alloy Steel Bars Subjectto End-Quench Hardenability RequirementsA322 Specification for Steel Bars,Alloy,Standard GradesA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA400 Practice for Steel Bars,Selection Guide,Composition,and Mechanical PropertiesA510/A510M Specification for General Requirements forWire Rods and Coarse Round Wire,Carbon Steel,andAlloy SteelA576 Specification for Steel Bars,Carbon,Hot-Wrought,Special Quality2.2 Other Documents:SAE Handbook and SAE J1086 Recommended Practice forNumbering Metals and Alloys(UNS)3AIST Bar Steels:Steel Product Manual43.Terminology3.1 Definitions:3.1.1 product tolerance levelscold-finished steel bar isproduced with up to three(3)increasingly tight tolerancelevels,for the individual product characteristics,dependent onthe method of manufacture necessary to meet purchaser-ordered specification requirements.(Product Tolerance Level 1is selected,unless otherwise specified by purchaser.)4.Ordering Information4.1 Orders for cold-finished steel bar to this specificationshould include the following items to adequately describe thematerial:4.1.1 Name of material,4.1.2 ASTM specification number and date of issue,4.1.3 Chemical composition,or steel grade designation orlimits as defined in Specification A29/A29M,4.1.4 Silicon level,if required,4.1.5 Additional machinability-enhancing elements(seeFootnote F to Table 1 of Specification A29/A29M),4.1.6 Surface Condition(Surface tolerances listed in TableA1.7,Table A1.8,and Table A1.9),4.1.7 Tolerance Levels(Reference tolerances listed in TableA1.1 through Table A1.9),4.1.8 Shape(round,hexagon,square,flat,etc.),size,andlength,4.1.9 Report of heat analysis,if required,4.1.10 End use,1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.15 on Bars.Current edition approved Aug.15,2013.Published August 2013.Originallyapproved in 1926.Last previous edition approved in 2007 as A108 07.DOI:10.1520/A0108-13.2For 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.3Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/www.sae.org.4Available from Association for Iron&Steel Technology(AIST),180 ThornHill Road,Warrendale,PA 150867528,http:/www.aist.org*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.11 Additions to the specification and special or supple-mentary requirements,if required,and4.1.12 For coiled product,the coil weights,inside diameter,outside diameter,and coil height limitations,when required.NOTE2A typical ordering description is as follows:Steel Bar;ASTMA108,dated _;ASTM Steel Grade-1117;Coarse Grain;ColdDrawn;1.500-in.(38.10-mm)diameter round;12 ft(3657.61 mm)long;Heat Analysis Required;Precision Machined Parts.NOTE3Amore complex ordering description is as follows:Steel Bar;ASTM A108,dated _;ASTM Steel Grade-1045;Fine Grain;ColdDrawn,Turned,Ground and Polished;chamfer both ends;MechanicalProperty Test Results;Hardness test;2.000-in.(50.80-mm)diameterround;12 ft(3657.61 mm)long;Heat Analysis Required;