1、Designation: A 1003/A 1003M 05Standard Specification forSteel Sheet, Carbon, Metallic- and Nonmetallic-Coated forCold-Formed Framing Members1This standard is issued under the fixed designation A 1003/A 1003M; the number immediately following the designation indicates theyear of original adoption or,
2、 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*1.1 This specification covers coated steel sheet used in themanufacture of cold-fo
3、rmed 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 s
4、eparately 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
5、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 Standards:2A 463/A 463M Specificat
6、ion for Steel Sheet, Aluminum-Coated, by the Hot-Dip ProcessA 568/A 568M Specification for Steel Sheet, Carbon, andHigh-Strength Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA 653/A 653M Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)b
7、y the Hot-Dip ProcessA 755/A 755M Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process and Prepainted by theCoil-Coating Process for Exterior Exposed Building Prod-uctsA 792/A 792M Specification for Steel Sheet, 55 %Aluminum-Zinc Alloy-Coated by the Hot-Dip ProductsA 875/A 875M Spec
8、ification for Steel Sheet, Zinc-5 %Alu-minum Alloy-Coated by the Hot-Dip ProcessA 879 Specification for Steel Sheet, Zinc Coated by theElectrolytic Process for Applications Requiring Designa-tion of the Coating Mass on Each SurfaceA 902 Terminology Relating to Metallic-Coated Steel Prod-uctsA 924/A
9、924M Specification for General Requirements forSteel Sheet, Metallic-Coated by the Hot-Dip ProcessA 941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA 1004/A 1004M Practice for Establishing Conformance tothe Minimum Expected Corrosion Characteristics of Me-tallic,
10、Painted-Metallic, and Nonmetallic-Coated SteelSheet Intended for Use as Cold-Formed Framing MembersC 645 Specification for Nonstructural Framing MembersC 955 Specification for Load-Bearing (Transverse andAxial) Steel Studs, Runners (Tracks), and Bracing orBridging for Screw Application of Gypsum Boa
11、rd andMetal Plaster BasesD 714 Test Method for Evaluating Degree of Blistering ofPaintsD 1005 Test Methods for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD 1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD 4138 Test Method
12、 for Measurement of Dry-Film Thick-ness of Protective Coating Systems by Destructive MeansD 4145 Test Method for Coating Flexibility of PrepaintedSheet2.2 ISO Standard:ISO 9223 Corrosion of Metals and AlloysCorrosivity ofAtmospheres-Classification31This specification is under the jurisdiction of AST
13、M Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.11 on Sheet Specifications.Current edition approved April 1, 2005. Published May 2005. Originallyapproved in 2000. Last previous edition approved in 2002 asA 1003/A 1003M02a.2For referenced
14、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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
15、4th Floor, New York, NY 10036.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.3 AISI Standard:Specification for the Design of Cold-Formed Steel StructuralMembers43.
16、Terminology3.1 DefinitionsSee Terminology A 902 for definitions ofgeneral terminology relating to metallic-coated steel products,and Terminology A 941 for definitions of general terminologyrelating to uncoated steel sheet products.3.2 Definitions of Terms Specific to This Standard:3.2.1 coating sequ
17、ence, nthe unbroken or uninterruptedmanufacture of coils of the same coating designation.3.2.2 coil coater, nthe organization that applies paint filmcoatings to coils of steel sheet on continuous paint lines.3.2.3 producer, nthe organization that produces the steelsheet coil product from which the c
18、old-formed members arefabricated.3.2.4 purlins and girts, nhorizontal structural membersthat support roof deck or panel covering with loads appliedprincipally by bending.3.2.5 resample, nadditional tests made when the originaltest results do not satisfy the specification requirements.3.2.6 retest, n
19、additional 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.3.2.7 roll former, nthe organization that produces thecold-formed members.3.2.8 zinc-iron alloy, na dull grey coating with
20、 no spanglepattern that is produced on hot-dip zinc-coated steel sheet.3.2.8.1 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
21、 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-co
22、lored 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.3.2.9 aluminum coating type 1, na coating of aluminumand silicon alloy on steel sheet.3.2.9.1 DiscussionAluminum-coated steel she
23、et 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
24、 thebase metal is exposed to the environment, such as at punch-outs, cut or sheared edges of members, and at scratches.3.2.10 aluminum coating type 2, na coating of commer-cially pure aluminum on steel sheet.3.2.10.1 DiscussionAluminum-coated steel sheet type 2provides protection from corrosion prim
25、arily 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-out
26、s, cut orsheared edges of members, and at scratches.3.3 Suffxes: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 non
27、struc-tural or nonload-bearing applications.4. Classification4.1 The steel sheet is available in the following designa-tions:4.1.1 Structural Grade 50 Type H (ST50H), StructuralGrade 340 Type H ST340H.4.1.2 Structural Grade 40 Type H (ST40H), StructuralGrade 275 Type H ST275H.4.1.3 Structural Grade
28、37 Type H (ST37H), StructuralGrade 255 Type H ST255H.4.1.4 Structural Grade 33 Type H (ST33H), StructuralGrade 230 Type H ST230H.4.1.5 Structural Grade 50 Type L (ST50L), Structural Grade340 Type L ST340L.4.1.6 Structural Grade 40 Type L (ST40L), Structural Grade275 Type L ST275L.4.1.7 Structural Gr
29、ade 37 Type L (ST37L), Structural Grade255 Type L ST255L.4.1.8 Structural Grade 33 Type L (ST33L), Structural Grade230 Type L ST230L.4.1.9 Nonstructural Grade 33 (NS33), Nonstructural Grade230 NS230).NOTE 1Abbreviated designations are shown in parenthesis or brack-ets.4.2 Use of Type L steels is lim
30、ited to purlins and girts (see3.2.4).5. Ordering Information5.1 Steel sheet in coils or cut lengths shall be ordered tobase metal thickness requirements expressed in increments of0.0001 in. 0.001 mm.5.2 Orders for product to this specification shall include thefollowing information, as necessary to
31、adequately describe thedesired product.5.2.1 ASTM specification number and year of issue (A 1003 _ for inch-pound units and A 1003M _ 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 designa
32、tion (see 4.1).5.2.2.1 See Specification A 755/A 755M for additional or-dering requirements for the painted-metallic-coated steel sheet.4Available from American Iron and Steel Institute (AISI), 1140 ConnecticutAve., Suite 705, Washington, DC 20036.A 1003/A 1003M 0525.2.3 Type of coating (metallic-co
33、ated; zinc, zinc-iron alloy,55 % aluminum-zinc alloy, zinc-5 % aluminum alloy,aluminum-coated Type 1, and aluminum-coated Type 2, elec-trolytic zinc-coated), (painted-metallic-coated; metallic-coating and nonmetallic-coating type), (painted nonmetalliccoated: nonmetallic-coating type).5.2.3.1 Metall
34、ic 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-treated(metallic-coated only).5.2.5 Oiled or not-oiled,5.2.6 Dimensions (show thickness, width, and flatness re-quirements and length, if cut l
35、engths). Specify the applicabletable of thickness tolerances of A 568/A 568M for bothmetallic-coated and nonmetallic-coated sheet that applies to theorder, that is, the table of thickness tolerances for38-in.10-mm edge distance, or the table of thickness tolerances for1-in. 25-mm edge distance.5.2.7
36、 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 o
37、r nonmetallic coating thickness and mechanicalproperties report).5.2.10 Special Requirements, if any.NOTE 2Typical ordering descriptions are as follows: Steel sheet,zinc-coated, Structural Grade 50 Type H (ST50H), ASTM A 1003,Coating Designation G60, chemically-treated, not oiled, 0.035 by 48 in.by
38、coil, thickness tolerance Table 2, 24-in ID, 30 000 lb maximum forsteel studs, orSteel sheet, zinc-coated, Structural Grade 230 Type L ST230L, ASTMA 1003M, Coating Designation Z180, chemically-treated, not oiled, 1.00mm by 920 mm by coil, thickness tolerance Table 2, 600 mm ID, 10 000kg maximum for
39、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. Mater
40、ials and Manufacture6.1 The ordered thickness shall be the base metal thickness.NOTE 4This requirement differs from the normal ordering practice forhot dip metallic-coated products where the ordered thickness includes thebase metal and the coating but is similar to the ordering practice for heavycoa
41、ting mass electrolytic coated product.7. Chemical Composition7.1 Base Metal:7.1.1 The chemical composition of the steel sheet shallconform to the requirements of Table 3.7.1.2 All tests shall be conducted in accordance with therequirements for chemical composition as described in Speci-fication A 92
42、4/A 924M for products with metallic coatings andSpecification A 568/A 568M for nonmetallic coated products.TABLE 1 Coating Weight Mass Requirements(Metallic Coatings)ProductDesignationCoating DesignationType H andType LG60 Z180AA60 Z180BAZ50 AZ150CGF30 ZGF90DT125 T1M 75ET2100 T2M 300E90G/90GFType NS
43、 G40 Z120AA40 Z120BAZ50 AZ150CGF30 ZGF90DT125 T1M 75ET2100 T2M 300E60G/60GFAZinc-coated steel sheet as described in Specification A 653/A 653M.BZinc-iron alloy-coated steel sheet as described in Specification A 653/A 653M.C55 % aluminum-zinc alloy-coated as described in Specification A 792/A 792M.DZ
44、inc-5 % aluminum alloy-coated steel sheet as described in SpecificationA 875/A 875M.EAluminum-coated Type 1 and Type 2 steel sheet as described in SpecificationA 463/A 463M.FZinc-coated steel sheet as described in Specification A 879TABLE 2 Mechanical Properties, Base MetalNOTE 1All values are minim
45、um requirements in the longitudinaldirection.DesignationYieldStrength,ksi MPaTensileStrengthksi MPaElongationAin12 in. 13 mmElongation in2 in. 50 mmST50H ST340H 50 340B65 450C10 %ST40H ST275H 40 275B55 380C10 %ST37H ST255H 37 255B52 360C10 %ST33H ST255H 33 230B45 310C10 %ST50L ST340LD50 340 20 %E3%F
46、ST40L ST275LD40 275 20 %E3%FST37L ST255LD37 255 20 %E3%FST33L ST230LD33 230 20 %E3%FNS 33 33 230 . . .G.GAThe procedure for determining the local and uniform elongation can be foundin the AISI Cold Formed Design Manual, “Standard Methods for Determination ofUniform and Local Ductility.”BRatio of ten
47、sile strength to yield strength for the Type H steels shall not be lessthan 1.08.CElongation in12-in. 13-mm is not required.DThe use of Type L steels shall be limited to purlins and girts (see 3.2.4).ELocal elongation in a12-in. 13-mm gage length across the fracture.FUniform elongation outside of th
48、e fracture.GWhere an ellipsis appears there is no requirement.TABLE 3 Chemical Composition Heat and Product Analysis,Max %Element Heat Analysis Product AnalysisCarbon 0.25AManganese 1.15APhosphorus 0.20ASulfur 0.04ACopper 0.20B0.23Nickel 0.20B0.23Chromium 0.15B,C0.19Molybdenum 0.06B0.07Vanadium 0.00
49、8D0.018DColumbium 0.008D0.018DTitanium 0.008D0.018DAProduct analysis tolerances for these elements are found in Table 1 ofSpecification A 924/A 924M.BThe sum of copper, chromium, nickel, and molybdenum shall not exceed0.50 %. When one or more of these elements are specified, the sum does notapply. If this occurs, only the individual limits on the remaining elements shallapply.CChromium is permitted, at producers option, to 0.25 % max
