1、Designation: A463/A463M 15Standard Specification forSteel Sheet, Aluminum-Coated, by the Hot-Dip Process1This standard is issued under the fixed designation A463/A463M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of la
2、st revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers aluminu
3、m-coated steel sheet incoils and cut lengths available with two types of aluminumcoating applied by the hot-dip process, with several coatingweights masses.1.2 Product furnished under this specification shall conformto the applicable requirements of the latest issue of Specifica-tion A924/A924M, unl
4、ess otherwise provided herein.1.3 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.4 This specification is applicable to orders in eith
5、erinch-pound units (as A463) or SI units as A463M. Values ininch-pound and SI units are not necessarily equivalent. Withinthe text, SI units are shown in brackets. Each system shall beused independently of the other.1.5 Unless the order specifies the “M” designation (SIunits), the product shall be f
6、urnished to inch-pound units.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations
7、 prior to use.2. Referenced Documents2.1 ASTM Standards:2A428/A428M Test Method for Weight Mass of Coating onAluminum-Coated Iron or Steel ArticlesA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripA902 Terminology Relating to Me
8、tallic Coated Steel Prod-uctsA924/A924M Specification for General Requirements forSteel Sheet, Metallic-Coated by the Hot-Dip ProcessE517 Test Method for Plastic Strain Ratio r for Sheet MetalE646 Test Method for Tensile Strain-Hardening Exponents(n -Values) of Metallic Sheet Materials3. Terminology
9、3.1 DefinitionsSee Terminology A902 for definitions ofgeneral terminology relating to metallic-coated steel products.4. Classification4.1 The steel sheet is available in several designations, asfollows:4.1.1 Commercial Steel (CS Types A, B, and C),4.1.2 Forming Steel (FS),4.1.3 Deep Drawing Steel (D
10、DS),4.1.4 Extra Deep Drawing Steel (EDDS),4.1.5 Structural Steel (SS),4.1.6 High Strength-Low Alloy Steel (HSLAS Type A),4.1.7 High Strength-Low Alloy Steel (HSLAS Type B),4.1.8 Ferritic Stainless Steel (FSS Type 409), and4.1.9 Ferritic Stainless Steel (FSS Type 439).4.2 Structural Steel (SS) and Hi
11、gh Strength-Low AlloySteels (HSLAS Types A and B) are available in several gradesand classes.4.3 The aluminum coating is available in two types withseveral coating weights masses with coating designations asshown in Table 1.4.3.1 Coating Type 1 is manufactured using a coating bathof aluminumsilicon
12、alloy containing 5 to 11 % silicon topromote better adherence. It is intended principally for heat-resisting applications and also for uses where corrosion resis-tance and heat are involved. It is available as a coating on eachof the designations of steel sheet listed in 4.1.4.3.2 Coating Type 2 is
13、a commercially pure aluminum. It isintended principally for use in applications requiring corrosionresistance and is available only as a coating on CommercialSteel, Forming Steel, Structural Steel, and High Strength-LowAlloy Steel.1This specification is under the jurisdiction of ASTM Committee A05 o
14、nMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.11 on Sheet Specifications.Current edition approved Oct. 1, 2015. Published October 2015. Originallyapproved in 1962. Last previous edition approved in 2015 as A463/A463M - 10(2015). DOI: 10.1520/A0463_A0463
15、M-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 standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this
16、 standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Ordering Information5.1 Product under this specification shall be ordered todecimal thickness only, and dimensional tolerances of Speci-fication A924/A924M shall apply. Speci
17、fication A480/A480Mshall apply to FSS (Types 409 and 439) for thickness tolerancesonly. The following, as required, shall be used to adequatelydescribe the product required.5.1.1 Name of product (steel sheet, aluminum-coated Type 1or 2),5.1.2 Designation of sheet (CS (Types A, B, and C), FS,DDS, EDD
18、S, SS, HSLAS (Type A or B); and FSS (Types 409and 439).5.1.2.1 When a CS type is not specified, Type B will befurnished.5.1.2.2 When a SS or HSLAS designation is specified, statethe type, grade, or class, or combination thereof.5.1.3 ASTM designation number and year of issue,5.1.4 Coating designatio
19、n,5.1.5 Specify whether oiled or dry or chemically treated,oiled or dry,5.1.6 Dimensions (show thickness, minimum or nominal;width; and length, if cut lengths). Specification A480/A480Mshall apply to FSS (Types 409 an 439) for thickness tolerancesonly.5.1.7 Coil size requirements (specify maximum ou
20、tsidediameter (OD), acceptable inside diameter (ID), and maximumcoil weight),5.1.8 Application (show part identification and description),5.1.9 Certification, if required, and heat analysis and me-chanical property report, and5.1.10 Special requirements (if required).5.1.10.1 When the purchaser requ
21、ires thickness tolerancesfor38-in. 10-mm minimum edge distance (see Supplemen-tary Requirement in specification A924/A924M), this require-ment shall be specified in the purchase order or contract.NOTE 1Typical ordering descriptions are as follows: Steel sheet,aluminum-coated, Forming Steel (FS), AST
22、M A463 _, Coating Des-ignation T1 40, chemically treated dry, minimum 0.040 in. by 34 in. bycoil, 48-in. maximum outside diameter, 20-in. inside diameter, 20 000-lbmaximum coil weight, for muffler ends.Steel Sheet, aluminum-coated, Commercial Steel (CS Type A), ASTMA463M _, Coating Designation T1M 1
23、20, chemically treated dry,minimum 1.00 mm by 920 mm by coil, 1200-mm maximum outsidediameter, 500-mm inside diameter, 10 000-kg maximum coil weight, forrange heat shield.NOTE 2The purchaser should be aware that there are variations inmanufacturing practices among the producers and therefore is advi
24、sed toestablish the producers standard (or default) procedures for thicknesstolerances.6. Chemical Composition6.1 Base Metal:6.1.1 The heat analysis of the base metal shall conform tothe requirements shown in Table 2 for CS (Types A, B, and C),FS, DDS, EDDS, and FSS (Types 409 and 439), Table 3 for
25、SSand HSLAS.6.1.2 When the amount of copper, nickel, chromium, ormolybdenum is less than 0.02 %, report the analysis either as0.02 % or the actual determined value. When the amount ofvanadium, titanium, or columbium is less than 0.008 %, reportthe analysis as either 0.008 % or the actual determined
26、value.When the amount of boron is less than 0.0005 %, report as0.0005 % or the actual determined value.6.1.3 See Specification A924/A924M for chemical analysisprocedures and product analysis tolerances.6.1.4 The heat analysis of the base metal for FSS (Types 409and 439) shall conform to the requirem
27、ents shown in Table 2.6.1.5 See Specification A480/A480M for chemical analysisprocedures and product analysis tolerances for FSS (Types 409and 439).6.2 Coating Bath Composition:6.2.1 The bath metal used for Type 1 shall contain analuminum-silicon alloy containing 5 to 11 % silicon, thebalance alumin
28、um.6.2.2 The bath metal used for Type 2 shall contain commer-cially pure aluminum.7. Mechanical Properties7.1 Structural steel and high strength low alloy steel shallconform to the mechanical property requirements of Table 4for the type, grade, or class, or combination thereof, specified.7.2 The typ
29、ical mechanical properties for CS (Types A, B,and C), FS, DDS, EDDS and FSS (Types 409 and 439), steelsheet designations are listed in Table 5. These mechanicalproperty values are nonmandatory. They are solely to providethe purchaser with as much information as possible to make aninformed decision o
30、n the steel to be specified. Values outsidethese ranges are to be expected.TABLE 1 Weight Mass of Coating RequirementsA,BCoating DesignationMinimum RequirementTriple-Spot Test, TotalBoth SidesSingle-Spot Test, TotalBoth SidesInch-Pound Unitsoz/ft2oz/ft2T113 0.13 0.10T125 0.25 0.20T140 0.40 0.30T160
31、0.60 0.50T180 0.80 0.70T1100 1.00 0.90T2LC no minimum no minimumT265 0.65 0.60T2100 1.00 0.90SI Unitsg/m2g/m2T1M 40 40 30T1M 75 75 60T1M 120 120 90T1M 180 180 150T1M 240 240 210T1M 300 300 270T2M LC no minimum no minimumT2M 200 200 180T2M 300 300 270AThe coating designation number is the term by whi
32、ch this product is specified.Because of the many variables and changing conditions that are characteristic ofcontinuous hot-dip coating lines, the weight mass of coating is not always evenlydivided between the two surfaces of a sheet, nor is the coating evenly distributedfrom edge to edge. However,
33、normally not less than 40 % of the single-spot testlimit will be found on either surface.BNo minimum means that there are no established minimum requirements fortriple- and single-spot tests, but aluminum coating shall be present.A463/A463M 1527.3 When base metal mechanical properties are required,
34、alltests shall be conducted in accordance with the methodsspecified in Specification A924/A924M.7.4 Bending Properties:7.4.1 Minimum Cold Bending RadiiStructural steel sheetis commonly fabricated by cold bending. There are manyinterrelated factors that affect the ability of a steel to cold formover
35、a given radius under shop conditions. These factorsinclude: thickness, strength level, degree of restraint, relation-ship to rolling direction, chemistry, and base metal microstruc-ture. Appendix X1 lists the suggested minimum inside radiusfor 90 cold bending for these steel sheets. They presuppose“
36、hard way” bending (bend axis parallel to rolling direction) andreasonably good shop forming practices. Where possible, theuse of larger radii or “easy way” bends are recommended forimproved performance.7.4.2 Fabricators should be aware that cracks may initiateupon bending a sheared edge. This is not
37、 considered to be afault of the steel but is rather a function of the inducedcold-work.TABLE 2 Chemical RequirementsComposition, %Heat AnalysisElement, max (unless otherwise shown)Designation C Mn P S AlACuBNiBCrBMoBVCbCTi BCS Type AD,E,F0.10 0.60 0.030 0.035 . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.
38、30 . . .CS Type BD,F0.02 to 0.15 0.60 0.030 0.035 . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.30 . . .CS Type CD,F0.08 0.60 0.10 0.035 . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.30 . . .FSF0.02 to 0.10 0.50 0.020 0.030 . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.30 . . .DDSG,H0.06 0.50 0.020 0.025 0.01, min 0.
39、20 0.20 0.15 0.06 0.008 0.008 0.30 . . .EDDSI,H0.02 0.40 0.020 0.020 0.01, min 0.20 0.20 0.15 0.06 0.008 0.008 0.30 . . .FSS Type 409J0.030 1.00 0.040 0.020 . . . 0.50 0.50 10.5 to11.70.60 . .J.FSS Type 439K0.030 1.00 0.040 0.030 0.15 0.50 0.50 17.0 to19.00.06 . .K.AWhere an ellipsis (. . .) appears
40、 in the table, there is no requirement, but the analysis result shall be reported.BThe sum of copper, nickel, chromium, and molybdenum shall not exceed 0.50 % on heat analysis. When one or more of these elements are specified, the sum does notapply; in which case, only the individual limits on the r
41、emaining elements shall apply. This requirement does not apply to Types 409 and 439.CFor steels having a carbon content of 0.02 % or less, the limit for columbium is 0.045 % maximum. This requirement does not apply to Types 409 and 439.DFor CS, specify Type B to avoid carbon levels below 0.02 %.ECS
42、Type B describes the typical commercial quality product previously included in this specification.FWhen a deoxidized steel is required for the application, the purchaser has the option to order CS and FS to a minimum of 0.01 % total aluminum.GFurnished either as stabilized or not-stabilized steel at
43、 the producers option.HDDS and EDDS are available only as Coating Type 1 steel sheet.IShall be furnished as a stabilized steel.JShall contain silicon 1.00 % maximum, nitrogen 0.030 % maximum, and titanium 6 (carbon + nitrogen) minimum to 0.50 % maximum or titanium + columbium 0.08+8(carbon+nitrogen)
44、 minimum to 0.75 % maximum with 0.05 % minimum titanium.KShall contain silicon 1.00 % maximum, nitrogen 0.030 % maximum, titanium + columbium 0.20+4(carbon+nitrogen) minimum to 1.10 % maximum.TABLE 3 Chemical RequirementsAComposition, %Heat Analysis Element, max (unless otherwise shown)Designation C
45、 Mn P S CuBNiBCrBMoBVCCbC,DTiSSGrade 33 230 0.20 . . . 0.40 0.04 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 37 255 0.20 . . . 0.10 0.04 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 40 275 0.25 . . . 0.10 0.04 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 50 340(Classes 1 and 2) 0.25 . . . 0.20 0.04 0.20 0.2
46、0 0.15 0.06 0.008 0.008 0.30Grade 50 340(Class 3) 0.25 . . . 0.04 0.04 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 80 550 0.20 . . . 0.04 0.04 0.20 0.20 0.15 0.06 0.008 0.008 0.30HSLAS Type AEGrade 50 340 0.20 1.20 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 60 410 0.20 1.35 . . . 0.035 0.20
47、 0.20 0.15 0.06 0.008 0.008 0.30Grade 70 480 0.20 1.65 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 80 550 0.20 1.65 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30HSLAS Type BE, FGrade 50 340 0.15 1.20 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 60 410 0.15 1.20 . . . 0.035 0.20
48、 0.20 0.15 0.06 0.008 0.008 0.30Grade 70 480 0.15 1.65 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30Grade 80 550 0.15 1.65 . . . 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.30AWhere an ellipsis (. . .) appears in the table, there is no requirement, but the analysis result shall be reported.BThe sum o
49、f copper, nickel, chromium and molybdenum shall not exceed 0.50 % on heat analysis. When one or more of these elements are specified the sum does notapply; in which case, only the individual limits on the remaining elements shall apply.CThe limits do not apply when HSLAS is specified.DFor steels having a carbon content of 0.02 % or less, the limit for columbium is 0.045 % max.ESteel conforming to this designation commonly contains the strengthening elements columbium, nitrogen, phosphorus, or vanadium added
