ASTM_A_591_-_A_591M_-_98.pdf

Designation:A 591/A 591M 98Standard Specification forSteel Sheet,Electrolytic Zinc-Coated,for Light CoatingWeight Mass Applications1This standard is issued under the fixed designationA 591/A 591M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript 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 covers zinc coatings produced byelectro-deposition for light coating weight mass applicationson steel sheet.This product is available in four zinc-coatingdesignations which are listed in Table 1.For electrolyticzinc-coated steel sheet with coating masses heavier thandescribed in this specification,see Specification A 879.1.2 This product is intended for applications requiring somedegree of corrosion resistance with or without requirements forformability,strength,paintability,or a combination thereof.The coating is used to provide some enhancement in corrosionperformance as compared to an uncoated product.It is notintended to withstand outdoor exposure without chemicaltreating and painting.1.3 The steel sheet used as the substrate shall be asdescribed in one of the following specifications,as specified inthe order:A 366/A 366M,A 569/A 569M,A 570/A 570M,A 606,A 607,A 611,A 620/A 620M,A 622/A 622M,A 659/A 659M,A 715,A 794,A 812/A 812M,A 963/A 963M,andA 969/A 969M.1.3.1 This coating process has essentially no effect on thebase metal mechanical properties and can be used on any gradeor quality of hot or cold-rolled steel sheet.1.4 For purposes of determining conformance with thisspecification,values shall be rounded to the nearest unit in theright-hand place of figures used in expressing the limitingvalues in accordance with the rounding method of PracticeE 29.1.5 The values stated in either inch-pound or SI units are tobe regarded separately as standard.Within the text,the SI unitsare shown in brackets.The values stated in each system are notexact equivalents;therefore,each system must be used inde-pendently of the other.2.Referenced Documents2.1 ASTM Standards:A 90/A 90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy Coatings2A 366/A 366M Specification for Commercial Steel(CS)Sheet,Carbon,(0.15 Maximum Percent)Cold-Rolled3A 568/A 568MSpecification for Steel,Sheet,Carbon andHigh Strength,Low-Alloy,Hot-Rolled and Cold-Rolled,General Requirements for3A 569/A 569M Specification for Steel,Carbon(0.15 Maxi-mum,Percent),Hot-Rolled Sheet and Strip Commercial3A 570/A 570M Specification for Steel,Sheet and Strip,Carbon,Hot-Rolled,Structural Steel3A 606 Specification for Steel,Sheet and Strip,High-Strength,Low-Alloy,Hot-Rolled and Cold-Rolled withImproved Atmospheric Corrosion Resistance3A 607 Specification for Steel,Sheet and Strip,High-Strength,Low-Alloy,Columbium or Vanadium,or Both,Hot-Rolled and Cold-Rolled3A 611 Specification for Structural Steel(SS),Sheet,Car-bon,Cold-Rolled3A 620/A 620M Specification for Drawing Steel(DS),Sheet,Carbon,Cold-Rolled3A 622/A 622M Specification for Drawing Steel(DS),Sheet,and Strip,Carbon,Hot-Rolled3A 659/A 659M Specification for Commercial Steel(CS),Sheet and Strip,Carbon(0.16 maximum to 0.25 Maximum1This specification is under the jurisdiction of ASTM Committee A-5 onMetallic Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.11 on Sheet Specifications.Current edition approved May 10,1998.Published December 1998.Originallypublished as A 591 68.Last previous edition A 591 96.2Annual Book of ASTM Standards,Vol 01.06.3Annual Book of ASTM Standards,Vol 01.03.TABLE 1 Coating Class and Minimum Coating Limits CoatingMinimum Requirements Per SideInch-Pound UnitsCoatingCoatingWeight,Thickness,DesignationNameoz/ft.2mils.10ZFlash0.010.01720ZIntermediate0.020.03440ZFull0.040.06880ZDouble0.080.136SI UnitsCoatingCoatingMass,Thickness,DesignationNameg/m2m03GFlash30.4206GIntermediate60.8412GFull121.6824GDouble243.361AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of ASTM Standards.Copyright ASTMPercent),Hot-Rolled3A 700 Practices for Packaging,Marking,and LoadingMethods for Steel Products for Domestic Shipment4A 715 Specification for Steel Sheet and Strip,High-Strength,Low-Alloy,Hot-Rolled,and Steel Sheet,Cold-Rolled,High-Strength,Low-Alloy,with Improved Form-ability3A 754/A 754M Test Method for Coating Weight Mass byX-Ray Fluorescence2A 794 Specification for Commercial Steel(CS),Sheet(Car-bon 0.16%Maximum to 0.25%Maximum),Cold-Rolled3A 879 Specification for Steel Sheet,Zinc-Coated by theElectrolytic Process for Applications Requiring Designa-tion of Coating Mass on Each Surface2A 902 Terminology Relating to Metallic Coated Steel Prod-ucts2A 917 Specification for St