1、Designation:A 501 01An American National StandardStandard Specification forHot-Formed Welded and Seamless Carbon Steel StructuralTubing1This standard is issued under the fixed designation A 501;the number immediately following the designation indicates the year oforiginal adoption or,in the case of
2、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.Scope1.1 This specification c
3、overs black and hot-dipped galva-nized hot-formed welded and seamless carbon steel square,round,rectangular,or special shape structural tubing forwelded,riveted,or bolted construction of bridges and build-ings,and for general structural purposes.1.2 Square and rectangular tubing is furnished in size
4、s 1 to10 in.(25.4 to 254 mm)across flat sides with wall thicknesses0.095 to 1.000 in.(2.41 to 25.40 mm),dependent upon size;round tubing is furnished in NPS12to NPS 24(see Note 1)inclusive,with nominal(average)wall thicknesses 0.109 to1.000 in.(2.77 to 25.40 mm),dependent upon size.Specialshape tubi
5、ng and tubing with other dimensions is permitted tobe furnished,provided that such tubing complies with all otherrequirements of this specification.NOTE1The dimensionless designator NPS(nominal pipe size)hasbeen substituted in this standard for such traditional terms as“nominaldiameter,”“size,”and“n
6、ominal size.”1.3 The following precautionary statement pertains only tothe test method portion of this specification:This standard doesnot purport to address all the safety concerns,if any,associ-ated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety a
7、nd health practicesand determine the applicability of regulatory limitations priorto use.1.4 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are mathemati-cal conversions of the values in inch-pound units to SI units.1.5 The text of this specif
8、ication contains notes and foot-notes that provide explanatory material.Such notes and foot-notes,excluding those in tables and figures,do not contain anymandatory requirements.2.Referenced Documents2.1 ASTM Standards:A 53/A 53M Specification for Pipe,Steel,Black and Hot-Dipped,Zinc-Coated,Welded an
9、d Seamless2A 370 Test Methods and Definitions for Mechanical Testingof Steel Products3A 700 Practices for Packaging,Marking,and LoadingMethods for Steel Products for Domestic Shipment4A 751 Test Methods,Practices,and Terminology forChemical Analysis of Steel Products3A 941 Terminology Relating to St
10、eel,Stainless Steel,Re-lated Alloys,and Ferroalloys22.2AIAG Standard:B-1 Bar Code Symbology Standard53.Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication,refer to Terminology A 941.4.Ordering Information4.1 Orders for material under this specification shall containinforma
11、tion concerning as many of the following items as arerequired to describe the desired material adequately:4.1.1 Quantity(feet or number of lengths),4.1.2 Name of material(hot-formed tubing),4.1.3 Method of manufacture(seamless or welded)(seeSection 6),4.1.4 Finish(black or galvanized),4.1.5 Size(out
12、side diameter and calculated nominal wallthickness for round tubing and the outside dimensions andcalculated nominal wall thickness for square and rectangulartubing(Section 11),4.1.6 Length(random,multiple,or specific;see 12.3),4.1.7 End condition(see 17.3),4.1.8 Burr removal(see 17.3),4.1.9 Certifi
13、cation(see Section 19),4.1.10 ASTM specification designation and year of issue,4.1.11 End use,4.1.12 Special requirements,and4.1.13 Bar coding(see 20.3).1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel,and RelatedAlloys,and is the direct responsibility of
14、SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Mar.10,2001.Published May 2001.Originallypublished as A 501 64.Last previous edition A 501 99.2Annual Book of ASTM Standards,Vol 01.01.3Annual Book of ASTM Standards,Vol 01.03.4Annual Book of ASTM Standards,Vol 01.05.5Avail
15、able from Automotive Industry Action Group,26200 Lahser Road,Suite200,Southfield,MI 48034.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.5.Process5.1 The steel shall be made by one or more of the followingprocesses:open-hearth,basic-oxygen,or electric-furnace.5.2
16、 When steels of different grades are sequentially strandcast,the steel producer shall identify the resultant transitionmaterial and remove it using an established procedure thatpositively separates the grades.6.Manufacture6.1 The tubing shall be made by one of the followingprocesses:seamless;furnace-butt welding(continuous weld-ing);or electric-resistance welding followed by reheatingthroughout the cross section and hot forming by a reducing orshaping process,or both.7.Heat Analysis7.1 Each heat
