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ASTM A1003 - A 1003M - 15.pdf

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ASTM A1003 - A 1003M - 15.pdf

Designation A1003/A1003M − 15Standard Specification forSteel Sheet, Carbon, Metallic- and Nonmetallic-Coated forCold-Formed Framing Members1This standard is issued under the fixed designation A1003/A1003M; 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 indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers coated steel sheet used in themanufacture of cold-formed framing members, such as, but notlimited to, studs, joists, purlins, girts, and track.1.2 The steel sheet used for cold-formed framing membersincludes metallic-coated, painted metallic-coated, or paintednonmetallic-coated.1.3 The values stated in either inch-pound or SI units shallbe regarded separately as standard. Within the text, SI units areshown in brackets. The values stated in each system are notexact equivalents; therefore, each system shall be used inde-pendently of the other.1.4 Unless the order specifies the “M” designation [SIunits], the product shall be furnished to inch-pound units.1.5 The text of this specification references notes andfootnotes, which provide explanatory material. These notes andfootnotes, excluding those in tables and figures, shall not beconsidered as requirements of this specification.2. Referenced Documents2.1 ASTM Standards2A463/A463M Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip ProcessA568/A568M Specification for Steel, Sheet, Carbon,Structural, and High-Strength, Low-Alloy, Hot-Rolled andCold-Rolled, General Requirements forA653/A653M Specification for Steel Sheet, Zinc-CoatedGalvanized or Zinc-Iron Alloy-Coated Galvannealedby the Hot-Dip ProcessA755/A755M Specification for Steel Sheet, Metallic Coatedby the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building ProductsA792/A792M Specification for Steel Sheet, 55 Aluminum-Zinc Alloy-Coated by the Hot-Dip ProcessA875/A875M Specification for Steel Sheet, Zinc-5 Alu-minum Alloy-Coated by the Hot-Dip ProcessA879/A879M Specification for Steel Sheet, Zinc Coated bythe Electrolytic Process for Applications Requiring Des-ignation of the Coating Mass on Each SurfaceA902 Terminology Relating to Metallic Coated Steel Prod-uctsA924/A924M Specification for General Requirements forSteel Sheet, Metallic-Coated by the Hot-Dip ProcessA941 Terminology Relating to Steel, Stainless Steel, RelatedAlloys, and FerroalloysA1004/A1004M Practice for Establishing Conformance tothe Minimum Expected Corrosion Characteristics ofMetallic, Painted-Metallic, and Nonmetallic-Coated SteelSheet Intended for Use as Cold Formed Framing MembersA1046/A1046M Specification for Steel Sheet, Zinc-Aluminum-Magnesium Alloy-Coated by the Hot-Dip Pro-cessA1063/A1063M Specification for Steel Sheet, Twin-RollCast, Zinc-Coated Galvanized by the Hot-Dip ProcessD714 Test Method for Evaluating Degree of Blistering ofPaintsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD4138 Practices for Measurement of Dry Film Thickness ofProtective Coating Systems by Destructive, Cross-Sectioning MeansD4145 Test Method for Coating Flexibility of PrepaintedSheetE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ISO StandardISO 9223 Corrosion of Metals and AlloysCorrosivity ofAtmospheres-Classification31This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.11 on Sheet Specifications.Current edition approved Jan. 1, 2015. Published January 2015. Originallyapproved in 2000. Last previous edition approved in 2014 as A1003/A1003M - 14.DOI 10.1520/A1003_A1003M-15.2For 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 standard’s Document Summary page onthe ASTM website.3Available from American National Standards Institute ANSI, 25 W. 43rd St.,4th Floor, New York, NY 10036, http//www.ansi.org.*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 States12.3 AISI StandardSpecification for the Design of Cold-Formed Steel StructuralMembers43. Terminology3.1 DefinitionsSee Terminology A902 for definitions ofgeneral terminology relating to metallic-coated steel products,and Terminology A941 for definitions of general terminologyrelating to uncoated steel sheet products.3.2 Definitions of Terms Specific to This Standard3.2.1 aluminum coating type 1, na coating of aluminumand silicon alloy on steel sheet.3.2.1.1 DiscussionAluminum-coated steel sheet type 1provides protection from corrosion primarily through thebarrier action of the coating. The aluminum-silicon alloycoating provides galvanic corrosion only in marine environ-ments. Because this coating does not generally provide gal-vanic protection, rust staining may be evident at area where thebase metal is exposed to the environment, such as at punch-outs, cut or sheared edges of members, and at scratches.3.2.2 aluminum coating type 2, na coating of commer-cially pure aluminum on steel sheet.3.2.2.1 DiscussionAluminum-coated steel sheet type 2provides protection from corrosion primarily through thebarrier action of the coating. The aluminum coating providesgalvanic corrosion only in marine environments. Because thiscoating does not generally provide galvanic protection, ruststaining may be evident at areas where the base metal isexposed to the environment such as at punch-outs, cut orsheared edges of members, and at scratches.3.2.3 coating sequence, nthe unbroken or uninterruptedmanufacture of coils of the same coating designation.3.2.4 coil coater, nthe organization that applies paint filmcoatings to coils of steel sheet on continuous paint lines.3.2.5 producer, nthe organization that produces the steelsheet coil product from which the cold-formed members arefabricated.3.2.6 purlins and girts, nhorizontal structural membersthat support roof deck or panel covering with loads appliedprincipally by bending.3.2.7 resample, nadditional tests made when the originaltest results do not satisfy the specification requirements.3.2.8 retest, nadditional test, or tests, made when theoriginal test results do not satisfy the specification require-ments and the failure is due to a mechanical condition of thetest specimen.3.2.9 roll former, nthe organization that produces thecold-formed members.3.2.10 zinc-iron alloy, na dull grey coating with nospangle pattern that is produced on hot-dip zinc-coated steelsheet.3.2.10.1 DiscussionZinc-iron alloy-coating is normallydull gray in appearance when produced by the manufacture ofthe coated sheet. Typically, the coating contains between 8 and12 iron, which is the result of a diffusion reaction betweenthe steel sheet and the zinc coating during the coating process.In most applications, this product is intended to be painted. Thecoating offers excellent paint adhesion. When the product isexposed to the environment without a paint coating, there is atendency for the development of a rust-colored stain on thesurface. This is caused by the presence of iron in the coating.This stain may be aesthetically objectionable to some users ofcold formed framing members.3.3 Suffıxes H, adjhigh ductility.L, adjlow ductility.NS, adjnonstructural.3.3.1 These designations are associated with aspects of theend uses of the steel products; H and L are associated withstructural or load-bearing applications, and NS with nonstruc-tural or nonload-bearing applications.4. Classification4.1 The steel sheet is available in the following designa-tions4.1.1 Structural Grade 33, 37, 40, 50, 55, 57, 60, 70, and 80Type H for example, ST50H, Structural Grade 230, 255, 275,340, 380, 395, 410, 480, and 550 Type H [for example,ST340H].4.1.2 Structural Grade 33, 37, 40, 50, 55, 60, 70, and 80Type L for example, ST50L, Structural Grade 230, 255, 275,340, 380, 410, 480, and 550 Type L [for example, ST340L].4.1.3 Nonstructural Grade 33, 40, 50, 57, 60, 65, 70, and 80for example, NS33, Nonstructural Grade 230, 275, 340, 395,420, 450, 480, 550 [for example, NS230].NOTE 1Abbreviated designations are shown in parentheses or brack-ets.4.2 Use of Type L steels is limited to purlins and girts see3.2.6.5. Ordering Information5.1 Steel sheet in coils or cut lengths shall be supplied toeither base metal thickness requirements or coated steel thick-ness requirements, as specified on the purchase order or uponagreement between producer and user. If not specified or noagreement established, base steel thickness requirements shallapply.5.1.1 Thickness shall be expressed in increments of 0.0001in. [0.001 mm].5.1.2 Thickness shall be specified as minimum, nominalthickness is not permitted.5.1.3 Thickness tolerance is defined in accordance withSpecification A568/A568M for orders specified with base steelthickness and Specification A924/A924M for orders specifiedwith coated steel thickness. For thickness tolerance of thick-ness expressed in increments of 0.0001 in. [0.001 mm],Practice E29 rounding rules shall apply.5.1.4 Annex A2 provides a correlation between minimumbase steel thickness and ordered coated steel thickness, for allapproved coating designations. Table A2.1 shall be used tominimize risk of the base steel thickness falling below the4Available from American Iron and Steel Institute AISI, 1140 ConnecticutAve., NW, Suite 705, Washington, DC 20036, http//www.steel.org.A1003/A1003M − 152ordered coated thickness minus the coating thickness additivefor orders and steel produced to the coated steel thicknessrequirements.5.1.5 For orders specifying base steel thickness, it is theproducer’s responsibility to adhere to the minimum base steelthickness regardless of coating thickness or coating designationspecified.5.2 Orders for product to this specification shall include thefollowing information, as necessary to adequately describe thedesired product.5.2.1 ASTM specification number and year of issue A1003– __ for inch-pound units and A1003M – __ for SI units,5.2.2 Name of the material metallic-coated steel sheet,painted metallic-coated steel sheet, or painted nonmetallic-coated steel sheet, and designation see 4.1. For StructuralGrades, if a type is not specified, type H shall be furnished.5.2.2.1 See Specification A755/A755M for additional order-ing requirements for the painted-metallic-coated steel sheet.5.2.3 Type of coating metallic-coated; zinc, zinc-iron alloy,zinc-aluminum-magnesium alloy, 55 aluminum-zinc alloy,zinc-5 aluminum alloy, aluminum-coated Type 1, andaluminum-coated Type 2, electrolytic zinc-coated, painted-metallic-coated; metallic-coating and nonmetallic-coatingtype, painted nonmetallic coated nonmetallic-coating type.5.2.3.1 Metallic coating weight [mass] designation seeTable 1, see 9.1.5.2.3.2 Nonmetallic coating thickness see 9.2 or 9.3.5.2.4 Chemically-treated or not chemically-treatedmetallic-coated only.5.2.5 Oiled or not-oiled,5.2.6 Dimensions show minimum thickness, width, andflatness requirements and length, if cut lengths.5.2.7 Coil size requirements specify maximum outsidediameter OD acceptable inside diameter ID, and maximumweight [mass].5.2.8 Packaging specify requirements for banding, paperwrapping and other special packaging requirements.5.2.9 Certification, if required heat analysis, metallic coat-ing weight or nonmetallic coating thickness and mechanicalproperties report.5.2.10 Special Requirements, if any.5.2.11 When a composition type is not selected see Table2 then Class 1 shall be furnished.NOTE 2Typical ordering descriptions are as follows Steel sheet, zinc-coated, Structural Grade 50 Type H ST50H,ASTM A1003, Coating Designation G60, chemically-treated, not oiled,0.0350 in coated steel thickness, by 48 in. by coil, 24-in. ID, 30 000 lbmaximum for steel studs, or Steel sheet, zinc-coated, Structural Grade 230 Type L [ST230L],ASTM A1003M, Coating Designation Z180, chemically-treated, notoiled, 1.000 mm base steel thickness, by 920 mm by coil, 600 mm ID,10 000 kg maximum for purlins.NOTE 3Electrolytic zinc-coated steel sheet designations indicate thecoating on one surface only; therefore, the coating requirement must bespecified for each side of the steel sheet as indicated in Table 1. Also, theelectrolytic zinc-coated steel sheet is only available in SI values.6. Materials and Manufacture6.1 The ordered thickness shall be either the base steelthickness or the coated steel thickness, as specified on thepurchase order or upon agreement between producer and user.If not specified and no agreement established, base steelthickness shall apply.7. Chemical Composition7.1 Base Metal7.1.1 The chemical composition of the steel sheet shallconform to the requirements of Table 2, as indicated for theclass selected for the steel.7.1.2 All tests shall be conducted in accordance with therequirements for chemical composition as described in Speci-fication A924/A924M for products with metallic coatings andSpecification A568/A568M for nonmetallic coated products.7.1.3 An analysis of each heat of steel shall be made by theproducer to determine the percentage of elements specified inTable 2.7.1.4 In those cases where the heat analysis is not availablea product analysis test shall be performed to determineconformance with the requirements of Table 2.7.1.5 Each of the elements listed in Table 2 shall be includedin the report of heat or product analysis. When the amount ofcopper, nickel, chromium, or molybdenum is less than 0.02 ,report the analysis as 0.02 or the actual determined value.When the amount of vanadium, columbium, or titanium is lessthan 0.008 , report the analysis as 0.008 or the actualdetermined value.8. Mechanical Properties8.1 The mechanical properties of the steel sheet shallconform to the requirements shown in Table 3.8.2 Tests for mechanical properties of the “H” and “NS”steel designations shall be conducted in accordance with thetests for mechanical properties described in SpecificationA924/A924M for metallic-coated steel sheet and A568/A568Mfor nonmetallic coated steel sheet.8.3 Tests for elongation in1⁄2 in. [13 mm] of the “L” steeldesignations shall be conducted in accordance with the proce-dure found in the AISI Cold Formed Design Manual, “StandardMethods for Determination of Uniform and Local Ductility.”TABLE 1 Coating Weight [Mass] RequirementsMetallic CoatingsProductDesignationCoating DesignationType H andType LG60 [Z180]AA60 [ZF180]BA

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