Designation:A 500-03aNTERNATIONALStandard Specification forCold-Formed Welded and Seamless Carbon Steel StructuralTubing in Rounds and Shapes1This standard is issued under the fixed designation A500,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 (e)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*A 941 Terminology Relating to Steel,Stainless Steel,Re-1.1 This specification covers cold-formed welded and seam-lated Alloys,and Ferroalloysless carbon steel round,square,rectangular,or special shape2.2 Military Standards:structural tubing for welded,riveted,or bolted construction ofMIL-STD-129 Marking for Shipment and Storage3bridges and buildings,and for general structural purposes.MIL-STD-163 Steel Mill Products,Preparation for Ship-1.2 This tubing is produced in both welded and seamlessment and Storage*sizes with a periphery of 64 in.(1626 mm)or less,and a2.3 Federal Standards:specifi ed wall thickness of 0.625 in.(15.88 mm)or less.GradeFed.Std.No.123 Marking for ShipmentD requires heat treatment.Fed.Std.No.183 Continuous Identifi cation Marking ofIron and Steel Products3NorE 1-Products manufactured to this specification may not be2.4 AlAG Standard:suitable for those applications such as dynamically loaded elements inwelded structures,etc.,where low-temperature notch-toughness propertiesB-1 Bar Code Symbology Standard4may be important.3.Terminology1.3 The values stated in inch-pound units are to be regarded3.1 Defi nitions-For defi nitions of temms used in this speci-as standard.The values given in parentheses are mathematicalfi cation,refer to Terminology A 941.conversions of the values in inch-pound units to values in SIunits.4.Ordering Information1.4 The text of this specification contains notes and foot-4.1 Orders for material under this specification shall containnotes that provide explanatory material.Such notes and foot-information concerning as many of the following items as arenotes,excluding those in tables and fi gures,do not contain anyrequired to describe the desired material adequately:mandatory requirements.4.1.1 Quantity (feet or number of lengths).2.Referenced Documents4.1.2 Name of material (cold-formed tubing),2.1 ASTM Standards:24.1.3 Method of manufacture (seamless or welded).4.1.4 Grade (A.B.C.or D).A 370 Test Methods and Defi nitions for Mechanical Testing4.1.5 Size (outside diameter and wall thickness for roundof Steel Productstubing,and outside dimensions and wall thickness for squareA 700 Practices for Packaging,Marking,and Loadingand rectangular tubing),Methods for Steel Products for Domestic Shipment4.1.6 Copper-containing steel (see Table 1),if applicable,A 751 Test Methods,Practices,and Terminology for4.1.7 Length (random,multiple,specifi c
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