ASTM_A_751_-_14a.pdf

Designation:A75114aStandard Test Methods,Practices,and Terminology forChemical Analysis of Steel Products1This standard is issued under the fixed designation A751;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 U.S.Department of Defense.INTRODUCTIONThese test methods,practices,and terminology were prepared to answer the need for a singledocument that would include all aspects of obtaining and reporting the chemical analysis of steel,stainless steel,and related alloys.Such subjects as definitions of terms and product(check)analysisvariations(tolerances)required clarification.Requirements for sampling,meeting specified limits,andtreatment of data usually were not clearly established in product specifications.It is intended that these test methods,practices,and terminology will contain all requirements forthe determination of chemical composition of steel,stainless steel,or related alloys so that productspecifications will need contain only special modifications and exceptions.1.Scope*1.1 These test methods,practices,and terminology coverdefinitions,reference methods,practices,and guides relating tothe chemical analysis of steel,stainless steel,and relatedalloys.It includes both wet chemical and instrumental tech-niques.1.2 Directionsareprovidedforhandlingchemicalrequirements,product analyses,residual elements,and refer-ence standards,and for the treatment and reporting of chemicalanalysis data.1.3 These test methods,practices,and terminology applyonly to those product standards which include these testmethods,practices,and terminology,or parts thereof,as arequirement.1.4 In cases of conflict,the product specification require-ments shall take precedence over the requirements of these testmethods,practices,and terminology.1.5 Attention is directed to ISO/IEC 17025 when there maybe a need for information on criteria for evaluation of testinglaboratories.1.6 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 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE50 Practices for Apparatus,Reagents,and Safety Consid-erations for Chemical Analysis of Metals,Ores,andRelated MaterialsE60 Practice for Analysis of Metals,Ores,and RelatedMaterials by SpectrophotometryE322 Test Method for Analysis of Low-Alloy Steels andCast Irons by Wavelength Dispersive X-Ray FluorescenceSpectrometryE350 Test Methods for Chemical Analysis of Carbon Steel,Low-Alloy Steel,Silicon Electrical Steel,Ingot Iron,andWrought IronE352 Test Methods for ChemicalAnalysis of Tool Steels andOther Similar Medium-and High-Alloy SteelsE353 Test Methods for Chemical Analysis of Stainless,Heat-Resisting,Maraging,and Other Similar Chromium-Nickel-Iron AlloysE354 Test Methods for Chemical Analysis of High-Temperature,Electrical,Magnetic,and Other Similar Iron,Nickel,and Cobalt Alloys1These test methods,practices,and terminology are under the jurisdiction ofASTM Committee A01 on Steel,Stainless Steel and Related Alloys and are thedirect responsibility of Subcommittee A01.13 on Mechanical and Chemical Testingand Processing Methods of Steel Products and Processes.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1977.Last previous edition approved in 2014 as A751 14.DOI:10.1520/A0751-14A.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.*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 States1Copyright by ASTM Intl(all rights reserved);E415 Test Method for Analysis of Carbon and Low-AlloySteel by Spark Atomic Emission SpectrometryE548 Guide for General Criteria Used for Evaluating Labo-ratory Competence(Withdrawn 2002)3E572 Test Method for Analysis of Stainless and Alloy Steelsby Wavelength Dispersive X-Ray Fluorescence Spectrom-etryE743 Guide for Spectrochemical Laboratory Quality Assur-ance(Withdrawn 1998)3E851 Practice for Evaluation of Spectrochemical Laborato-ries(Withdrawn 1998)3E882 Guide for Accountability and Quality Control in theChemical Analysis LaboratoryE1019 Test Methods for Determination of Carbon,Sulfur,Nitrogen,and Oxygen in Steel,Iron,Nickel,and CobaltAlloys by Various Combustion and Fusion TechniquesE1085 Test