ASTM-A1011-A1011M

Designation:A 1011/A 1011M-04NTERNATIONALStandard Specification forSteel,Sheet and Strip,Hot-Rolled,Carbon,Structural,High-Strength Low-Alloy and High-Strength Low-Alloy withImproved Formability1This standard is issued under the fixed designation A 1011/A 1011M;the number immediately following the designation indicates 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 (e)indicates an editorial change since the last revision or reapproval.1.Scope*Strength Low-Alloy with Improved Formability,Hot-1.1 This specification covers hot-rolled,carbon,structural,Rolled,General Requirements forhigh-strength low-alloy,and high-strength low-alloy with im-A 749/A 749M Specifi cation for Steel,Strip,Carbon andproved formability steel sheet and strip,in coils and cutHigh-Strength,Low-Alloy,Hot-Rolled,General Require-lengths.ments for1.2 Hot rolled steel sheet and strip is available in theA 941 Terminology Relating to Steel,Stainless Steel,Re-designations as listed in 4.1.lated Alloys,and Ferroalloys1.3 This specifi cation is not applicable to the steel coveredE 18 Standard Test Methods for Rockwell Hardness andby Specifi cation A 635/A 635M.Rockwell Superfi cial Hardness of Metallic Materials1.4 The values stated in either inch-pound units or SI units3.Terminologyare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in each3.1 Definitions-For defi nitions of other temms used in thissystem are not exact equivalents;therefore,each system mustspecifi cation refer to Terminology A 941.be used independently of the other.3.2 Definitions of Terms Specific to This Standard:3.2.1 aging-loss of ductility with an increase in hardness,2.Referenced Documentsyield strength,and tensile strength that occurs when steel,2.1 ASTM Standards:2which has been slightly cold worked (such as by temperA 370 Test Methods and Defi nitions for Mechanical Testingrolling)is stored for some time.of Steel Products3.2.1.1 Discussion-Aging also increases the tendency to-A 568/A 568M Specifi cation for Steel,Sheet,Carbon,andward stretcher strains and flutingHigh-Strength,Low-Alloy,Hot-Rolled and Cold-Rolled,3.2.2 stabilization-the addition of one or more nitride orGeneral Requirements forcarbide forming elements,or both,such as titanium andA 569/A 569M Specifi cation for Steel,Carbon (0.15 Maxi-columbium,to control the level of the interstitial elementsmum,Percent),Hot-Rolled Sheet and Strip Commercial3carbon and nitrogen in the steelA 622/A 622M Specifi cation for Drawing Steel(DS),Sheet3.2.2.1 Discussion-Stabilization improves formability andand Strip,Carbon,Hot-Rolled3increases resistance to aging.A 635/A 635M Specifi cation for Steel,Sheet and Strip,3.2.3 vacum degassing-a process of refi ning liquid steelHeavy-Thickness Coils,Carbon,Commercial Steel,Draw-in which the liquid is exposed to a vacuum as part of a specialing Steel,