1、Designation:A1076/A1076M13Standard Specification forCold Formed Carbon Structural Steel Tubing Made fromMetallic Precoated Sheet Steel1This standard is issued under the fixed designation A1076/A1076M;the number immediately following the designation indicates theyear of original adoption or,in the ca
2、se 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 round,square,rectangular,andspecial shape,electric-resistance-welded
3、structural tubing pro-duced from precoated sheet steel with the following coatingson both sides:zinc(galvanized)or 55%aluminum-zinc alloyor zinc-5%aluminum alloy-coated.This product is intendedfor applications requiring minimum mechanical properties andcorrosion resistance of both exterior and inter
4、ior surfaces.1.2 This specification is applicable to orders in eitherinch-pound units(as A1076)or SI units(as A1076M).Withinthe text,SI units are shown in brackets.The values stated ineither SI units or inch-pound units are to be regarded separatelyas standard.The values stated in each system may no
5、t be exactequivalents;therefore,each system shall be used independentlyof the other.Combining values from the two systems mayresult in non-conformance with the standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of t
6、he 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:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA
7、370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA653/A653M Specification for Steel Sheet,Zinc-Coated(Galvanized)or Zinc-Iron Alloy-Coated(Galvannealed)by the Hot-Dip ProcessA792/A792M SpecificationforSteelSheet,55%Aluminum-Zinc Alloy-Coated by the Hot-Dip ProcessA875/A875M Sp
8、ecification for Steel Sheet,Zinc-5%Alu-minum Alloy-Coated by the Hot-Dip ProcessA902 Terminology Relating to Metallic Coated Steel Prod-uctsA500/A500M Specification for Cold-Formed Welded andSeamless Carbon Steel Structural Tubing in Rounds andShapesA924/A924M Specification for General Requirements
9、forSteel Sheet,Metallic-Coated by the Hot-Dip ProcessB750 Specification for GALFAN(Zinc-5%Aluminum-Mischmetal)Alloy in Ingot Form for Hot-Dip Coatings3.Terminology3.1 DefinitionsSee Terminology A902 for definitions ofgeneral terminology relating to metallic-coated hot-dip prod-ucts.3.2 Definitions o
10、f Terms Specific to This Standard:3.2.1 de-dimpled,adjthe condition of the end of tubingafter removal of the protrusion or deformation created by thepunch cut operation.3.2.1.1 DiscussionThe dimple is a protrusion that is dis-placed from the inside diameter and is unrelated to a shear burr.3.2.2 str
11、uctural tubing,ntubing tension tested with re-ported test results.4.Product Size4.1 The standard covers products available in the followingsizes:ProductWall Thickness,maxExterior Dimension,maxRound Tubing0.25 in.6.35 mmDiameter 5 in.130 mmSquare,Rectangular,orSpecial Shapes0.25 in.6.35 mmPeriphery 1
12、6 in.405 mm5.Classification5.1 The finished tube is available in the following designa-tions:5.1.1 Round structural tubing steel grade with minimumyield strength 33 ksi 230 MPa,42 ksi 290 MPa,and 46 ksi315 MPa in the finished tube.1This specification is under the jurisdiction of ASTM Committee A01 o
13、n Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Oct.1,2013.Published October 2013.Originallyapproved in 2012.Last previous edition approved in 2012 as A1076/A1076M12.DOI:10.1520/A1076_A1076M-1
14、3.2For 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 standar
15、dCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);5.1.2 Shaped structural tubing steel grade with minimumyield strength 39 ksi 270 MPa,46 ksi 315 MPa,and 50 ksi345 MPa in the finished tube.5.1.3 T
16、he finished tube is available as zinc-coated or 55%aluminum-zinc alloy-coated or zinc-5%aluminum alloy-coated.6.Ordering Information6.1 The ordered wall thickness of the tubing shall be thetotal of the base metal and the metallic coating.6.2 Orders for product to this specification shall include thefollowing information,as necessary,to adequately describe thedesired product.6.2.1 Steel grade designation,6.2.2 Chemically treated or not chemically treated rawmaterial,6.2.3 Coating designation and