1、Designation:A1065/A1065M18Standard Specification forCold-Formed Electric-Fusion(Arc)Welded High-StrengthLowAlloy Structural Tubing in Shapes,with 50 ksi 345MPa Minimum Yield Point1This standard is issued under the fixed designation A1065/A1065M;the number immediately following the designation indica
2、tes theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers three Types and two Grad
3、es ofcold formed electric-fusion(arc)welded high-strength low-alloy steel tubing of 50 ksi 345 MPa minimum yield point foruse in welded or bolted construction of buildings and forgeneral structural purposes.1.2 This tubing is produced in square and rectangular sizeswith a periphery of 200 in.500 cm
4、or less and a specified wallthickness of 1.00 in.25 mm or less.Tubes are joined by twolongitudinal electric-fusion(arc)welds.Circumferential weldsare disallowed.Sizes outside of those listed in Tables 4 and 5may be ordered provided all other requirements of the speci-fication are met.Typical lengths
5、 are 15 to 50 ft 5 to 15 m.NOTE1Products manufactured to this specification may not besuitable for those applications such as dynamically loaded elements inwelded structures,etc.where low-temperature toughness properties maybe important.(See Supplementary Requirement S1.)1.3 This specification cover
6、s the following Types:1.3.1 Type 1Welded with backing,backing left in theproduct,1.3.2 Type 2Welded with backing,backing removed,1.3.3 Type 3Welded without backing.1.4 Tubing is available in Grades 50 345 and 50W345W.Grade 50 345 is manufactured from high-strengthlow-alloy steel.Grade 50W 345W is ma
7、nufactured fromhigh-strength low-alloy steel with enhanced atmospheric cor-rosion resistance.(See 10.1.2)The Grades may not be inter-changed without approval of the purchaser.ASTM Specifica-tions for plate that may be applied to Grade 50 345 and 50W345W are listed in Reference Documents and in Table
8、 1.1.5 This specification is expressed in both inch-pound unitsand in SI units;however,unless the purchase order or contractspecifies the applicable M specification designation(SI units),the inch-pound units shall apply.The values stated in either SIunits or inch-pound units are to be regarded separ
9、ately asstandard.Within the text,the SI units are shown in brackets.The values stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with the standard.1.6 This standard doe
10、s 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international st
11、andard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Ref
12、erenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars,Plates,Shapes,and Sheet PilingA242/A242M Specification for High-Strength Low-AlloyStructural SteelA572/A572M Specification for High-Strength Low-AlloyColumbium-Vanadium Structural Steel
13、A588/A588M Specification for High-Strength Low-AlloyStructural Steel,up to 50 ksi 345 MPa Minimum YieldPoint,with Atmospheric Corrosion ResistanceA656/A656M Specification for Hot-Rolled Structural Steel,High-Strength Low-Alloy Plate with Improved Formabil-ityA700 Guide for Packaging,Marking,and Load
14、ing Methodsfor Steel Products for ShipmentA709/A709M Specification for Structural Steel for BridgesA941 Terminology Relating to Steel,Stainless Steel,Related1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibilit
15、y of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Sept.1,2018.Published September 2018.Originallyapproved in 2009.Last previous edition approved in 2015 as A1065/A1065M 15.DOI:10.1520/A1065_A1065M-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,o
16、rcontact 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles f
