ASTM_A_500-A500M-2018.pdf

This international standard was developed in accordance with internationally recgnized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.Designation:A500/A500M-18NTERNATIONALStandard Specification forCold-Formed Welded and Seamless Carbon Steel StructuralTubing in Rounds and Shapes1This standard is issued under the fixed designation A500/A500M:the number immediately following the designation indicates the yearof 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*2.Referenced Documents1.1 This specification covers cold-formed welded and seam-2.1 ASTM Standards:2less carbon steel round,square,rectangular,or special shapeA370 Test Methods and Definitions for Mechanical Testingstructural tubing for welded,riveted,or bolted construction ofof Steel Productsbridges and buildings,and for general structural purposes.A700 Guide for Packaging,Marking,and Loading Methods1.2 This tubing is produced in both welded and seamlessfor Steel Products for Shipmentsizes with a periphery of 88 in.2235 mmor less,and aA751 Test Methods,Practices,and Terminology for Chemi-specified wall thickness of 0.875 in.22 mmor less.Grade Dcal Analysis of Steel Productsrequires heat treatmentA941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and FerroalloysNorE 1-Products manufactured to this specification may not be2.2 Military Standards:suitable for those applications such as dynamically loaded elements inMIL-STD-129 Marking for Shipment and Storagewelded structures,etc.,where low-temperature notch-toughness propertiesmay be importantMIL-STD-163 Steel Mill Products,Preparation for Ship-ment and Storage1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,the2.3 Federal Standards:SI units are shown in brackets.The values stated in eachFed.Std.No.123 Marking for Shipmentsystem may not be exact equivalents;therefore,each systemFed.Std.No.183 Continuous Identification Marking of Ironshall be used independently of the other.Combining valuesand Steel Products3from the two systems may result in non-conformance with the2.4 AlAG Standard:standard.The inch-pound units shall apply unless the MB-1 Bar Code Symbology Standarddesignation of this specification is specified in the order.3.Terminology1.4 The text of this specification contains notes and foot-3.1 Definitions-For definitions of terms used in thisnotes that provide explanatory material.Such notes andspecification,refer to Terminology A941.footnotes,excluding those in tables and figures,do not containany mandatory requirements.4.Ordering Information1.5 This international standard was developed in accor-4.1 Orders for material under this specification shall containdance with internationally recognized principles on standard-information concerning as many of the following items as areization established in the Decision on Principles for therequired to describe the desired material adequately:Development of International Standards,Guides and Recom-4.1.1 Quantity(feet metresor number of lengths).mendations issued by the World Trade Organization Technical4.1.2 Name of material(cold-formed tubing),Barriers to Trade(TBT)Committee.2 For referenced ASTM standards,visit the ASTM website,www.astm.org.orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMThis specification is under the jurisdiction of ASTM Committee A01 on Steel.Standards volume information,refer to the standards Document Summary page onStainless Steel and Related Alloys and is the direct responsibility of Subcommitteethe ASTM website.A01.09 on Carbon Steel Tubular Products.Available from Standardization Documents Order Desk.Bldg.4 Section D.700Current edition approved March 1.2018.Published March 2018.OriginallyRobbins Ave.Philadelphia,PA 19111-5094.Attn:NPODS.approved in 1964.Last previous edition approved in 2013 as A500/A500M-13.Available from Automotive Industry Action Group(AIAG),26200 Lahser Rd.D0:10.1520WA0500A0500M-18.Suite 200.Southfield,MI 48033,http:/www.aiag.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM Intemational,100 Barr Harbor Drive,PO Box C700.West Conshohocken.PA 19428-2959.United States14A500/A500M-184.1.3 Method of manufacture(seamless or welded),7.Heat Analysis4.1.4 Grade(A,B,C,or D),4.1.5 Size(outside diameter and wall thickness for round7.1 Each heat analysis shall conform to the requirementstubing,and outside dimensions and wall thickness for squarespecified in Table I for heat analysis.and rectangular tubing),4.1.6 Copper-containing steel(see Table 1),if applicable,8.Product Analysis4.1.7 Length(random,multiple,specific;see 11.3),8.1 The tubing shall be capable of conforming to the4.1.8 End condition(see 16.3),requirements specified in Table 1 for product analysis.4.1.9 Burr removal(see 16.3),4.1.10 Certification(see Section 18)8.2 If product analyses are made,they shall be made using4.1.11 ASTM specification designation and year of issue,test specimens taken from two lengths of tubing from each lot4.1.12 End use,of 500 lengths,or fraction thereof,or two pieces of flat-rolled4.1.13 Special requirements,andstock from each lot of a corresponding quantity of flat-rolledstock.Methods and practices relating to chemical analysis shall4.1.14 Bar coding(see 19.3).be in accordance with Test Methods,Practices,and Terminol-5.Processogy A751.Such product analyses shall conform to the require-ments specified in Table I for product analysis.5.1 The steel shall be made by one or more of the followingprocesses:basic-oxygen or electric-furnace.8.3 If both product analyses representing a lot fail to5.2 When steels of different grades are sequentially strandconform to the specified requirements,the lot shall be rejected.cast,the steel producer shall identify the resultant transition8.4 If only one product analysis representing a lot fails tomaterial and remove it using an established procedure thatconform to the specified requirements,product analyses shallpositively separates the grades.be made using two additional test specimens taken from the lot.Both additional product analyses shall conform to the specified6.Manufacturerequirements or the lot shall be rejected.6.1 The tubing shall be made by a seamless or weldingprocess.9.Tensile Requirements6.2 Welded tubing shall be made from flat-rolled steel by9.1 The material,as represented by the test specimen,shallthe electric-resistance-welding process.The longitudinal buttconform to the requirements as to tensile properties prescribedjoint of welded tubing shall be welded across its thickness inin Table 2.such a manner that the structural design strength of the tubingsection is assured.6.3 The weld shall not be located within the radius of thecorners of any shaped tube unless specified by the purchaser.TABLE 2 Tensile RequirementsNorE 2-Welded tubing is normally furnished without removal of theRound Structural Tubinginside flash.Grade A Grade B Grade C Grade DTensile strength,min,psi MPa)450005800062000580006.4 Except as required by 6.5,it shall be permissible for the310j4001425400tubing to be stress relieved or annealed.Yield strength,min,psi MPa33000420004600036000【230j29013152506.5 Grade D tubing shall be heat treated at a temperature ofElongation in 2 in.50 mm,25423821C238at least 1100 F 590 Cfor one hour per inch 25 mmofmin,%Shaped Structural Tubingthickness.Grade A Grade B Grade C Grade DTensile strength,min,psi MPa4500058000620005800031040014254001TABLE 1 Chemical RequirementsYield strength,min,psi MPa39000460005000036000270j3151345)250Composition,%Elongation in 2 in.50 mm.2523821G238Grades A,B,andGrade Cmin,%ElementDAApplies to specified wall thicknesses(t equal to or greater than 0.120 in.3.05HeatProductHeatProductmm.For lighter specified wall thicknesses,the minimum elongation values shallAnalysisAnalysisAnalysisAnalvsisbe calculated by the formula:percent elongation in 2 in.50 mm=56t+17.5.rounded to the nearest percent.For A500M use the following formula:2.2t+17.5,Carbon,max0.260.300.230.27rounded to the nearest percent.Manganese,maxA1.351.401.351.40Applies to specified wall thicknesses(t)equal to or greater than 0.180 in.4.57Phosphorus,max0.0350.0450.0350.045mm.For lighter specified wall thicknesses,the minimum elongation values shallSulfur,max0.0350.0450.0350.045be calculated by the formula:percent elongation in 2 in.50 mm61t+12.Copper,min0.200.180.200.18rounded to the nearest percent.For A500M use the following formula:2.4t 12.rounded to the nearest percent.A For each reduction of 0.01 percentage point below the specified maximum forApplies to specified wall thicknesses(t)equal to or greater than 0.120 in.3.05carbon,an increase of 0.06 percentage point above the specified maximum formm.For lighter specified wall thicknesses,the minimum elongation values shallmanganese is permitted,up to a maximum of 1.50 by heat analysis and 1.60be by agreement with the manufacturer.by product analysis.The minimum elongation values specified apply only to tests performed prior toIf copper-containing steel is specified in the purchase order.shipment of the tubing.2A500/A500M-18upon the inspection and test methods outlined herein.Thecontent of the EDI transmitted document shall conform to anypurchaser shall notify the manufacturer of any tubing that hasexisting EDI agreement between the purchaser and the manu-been rejected,and the disposition of such tubing shall befacturer.subject to agreement between the manufacturer and the pur-chaser.19.Product Marking17.2 It shall be permissible for the purchaser to set aside any19.1 Except as noted in 19.2.each length of structuraltubing that is found in fabrication or installation within thetubing shall be legibly marked to show the following informa-scope of this specification to be unsuitable for the intended endtion:manufacturers name,brand,or trademark;the specifica-use,based on the requirements of this specification.Thetion designation(year of issue not required);and grade letterpurchaser shall notify the manufacturer of any tubing that has19.2 For structural tubing having a specified outside diam-been set aside.Such tubing shall be subject to mutual investi-eter or large flat dimension of 4 in.10 cmor less,it shall begation as to the nature and severity of the deficiency and thepermissible for the information listed in 19.1 to be marked onforming or installation,or both,conditions involved.Thea tag securely attached to each bundle.disposition of such tubing shall be subject to agreement19.3 Bar Coding-In addition to the requirements in 19.1between the manufacturer and the purchaser.and 19.2,the manufacturer shall have the option of using barcoding as a supplementary identification method.When a18.Certificationspecific bar coding system is specified in the purchase order,18.1 When specified in the purchase order or contract,thethat system shall be used.manufacturer shall furnish to the purchaser a certificate ofNorE 3-In the absence of another bar coding system being specified incompliance stating that the product was manufactured,the purchase order,it is recommended that bar coding be consistent withsampled,tested,and inspected in accordance with this speci-AIAG Standard B-1.fication and any other requirements designated in the purchase20.Packing,Marking,and Loadingorder or contract,and was found to meet all such requirements.Certificates of compliance shall include the specification num-20.1 When specified in the purchase order,packaging,ber and year of issue.marking,and loading shall be in accordance with PracticesA700.18.2 When specified in the purchase order or contract,themanufacturer shall furnish to the purchaser test reports for the21.Government Procurementproduct shipped that contain the heat analyses and the results of21.1 When specified in the contract,material shall bethe tension tests required by this specification and the purchasepreserved,packaged and packed in accordance with the re-order or contract.Test reports shall include the specificationquirements of MIL-STD-163,with applicable levels beingnumber and year of issue.specified in the contract.Marking for shipment of such18.3 A signature or notarization is not required on certifi-materials shall be in accordance with Federal Std.No.123 forcates of compliance or test reports;however,the documentscivil agencies and MIL-STD-129 or Federal Std.No.183 ifshall clearly identify the organization submitting them.Not-continuous marking is required.withstanding the absence of a signature,the organization21.2 Inspection-Unless otherwise specified in the contract.submitting the document is responsible for its content.the manufacturer shall be responsible for the performance of all18.4 A certificate of compliance or test report printed from,applicable inspection and test requirements specified herein.or used in electronic form from,an electronic data interchangeExcept as otherwise specified in the contract,the manufacturer(EDI)shall be regarded as having the same validity as ashall use its own or any other suitable facilities for thecounterpart printed in the certifying organizations facility.Theperformance of such inspections and tests.SUMMARY OF CHANGESCommittee A0l has identified the location of selected changes to this specification since the last issue,A500/A500M-13,that may impact the use of this specification.(Approved March 1,2018)(/Modified wording of 11.2 to make requirements clearer.5