1、Designation:A1077/A1077M14Standard Specification forStructural Steel with Improved Yield Strength at HighTemperature for Use in Buildings1This standard is issued under the fixed designation A1077/A1077M;the number immediately following the designation indicates theyear of original adoption or,in the
2、 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 alloy steel in bars,plates up toand including 4 in.100 mm in thick
3、ness and shapes ofstructural quality with improved yield strength at high tem-perature.Two grades,36 250 and 50 345 are available foruse in bolted or welded buildings or for general structuralpurposes.Class 2 requires a maximum yield to tensile ratio this ratio is not required for Class 1.1.2 When t
4、he steel is to be welded,a welding proceduresuitable for the grade of steel and intended use or service is tobe utilized.See Appendix X3 of Specification A6/A6M forinformation on weldability.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within
5、the text,theSI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system is tobe used independently of the other,without combining valuesin any way.1.4 The text of this specification contains notes or footnotes,or both,that provide explanatory materi
6、al.Such notes andfootnotes,excluding those in tables and figures,do not containany mandatory requirements.1.5 For structural products produced from coil and fur-nished without heat treatment or with stress relieving only,theadditional requirements,including additional testing require-ments and the r
7、eporting of additional test results,of Specifi-cation A6/A6M apply.1.6 Supplementary requirements are provided for use whereadditional testing or additional restrictions are required by thepurchaser.Such requirements apply only when specified in thepurchase order.2.Referenced Documents2.1 ASTM Stand
8、ards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars,Plates,Shapes,and Sheet PilingA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA673/A673M Specification for Sampling Procedure for Im-pact Testing of Structural SteelA770/A770M Specification f
9、or Through-Thickness TensionTesting of Steel Plates for Special ApplicationsE8 Test Methods for Tension Testing of Metallic MaterialsE21 Test Methods for Elevated Temperature Tension Tests ofMetallic Materials3.General Requirements for Delivery3.1 Products furnished under this specification shall co
10、n-form to the requirements of the current edition of SpecificationA6/A6M,for the specific structural product ordered,unless aconflict exists in which case this specification shall prevail.3.2 Coils are excluded from qualification to this specifica-tion until they are processed into a finished struct
11、ural product.Structural products produced from coil means structural prod-ucts that have been cut to individual lengths from a coil.Theprocessor directly controls,or is responsible for,the operationsinvolved in the processing of a coil into a finished structuralproduct.Such operations include decoil
12、ing,leveling orstraightening,hot-forming or cold-forming(if applicable),cutting to length,testing,inspection,conditioning,heat treat-ment(if applicable),packaging,marking,loading for shipment,and certification.NOTE1For structural products produced from coil and furnishedwithout heat treatment or wit
13、h stress relieving only,two test results are tobe reported for each qualifying coil.Additional requirements regardingstructural products produced from coil are described in SpecificationA6/A6M.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Al
14、loys and is the direct responsibility of SubcommitteeA01.02 on Structural Steel for Bridges,Buildings,Rolling Stock and Ships.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 2012.Last previous edition approved in 2012 as A1077 12.DOI:10.1520/A1077_A1077M-14.2For refe
15、renced 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 standardCopyright
16、ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);4.Materials and Manufacture4.1 The steel shall be killed,and this shall be confirmed byone of the following statements:(1)killed steel,(2)the siliconcontent is 0.10%or more,(3)the total aluminum content is0.015%or more,or(4)the titanium content is 0.006%ormore.5.Chemical Composition5.1 The heat analysis shall conform to the requirementsgiven in Table 1.5.
