1、Designation: A653/A653M 17Standard Specification forSteel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process1This standard is issued under the fixed designation A653/A653M; the number immediately following the designation indicates the yearof original ado
2、ption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers steel sheet, zinc-coated (gal-vanized) or zi
3、nc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.1.2 The product is produced in various zinc or zinc-ironalloy-coating weights masses or coating designations asshown in Table 1 and in Table S2.1.1.3 Product furnished under this specification shall conformto the app
4、licable requirements of the latest issue of Specifica-tion A924/A924M, unless otherwise provided herein.1.4 The product is available in a number of designations,grades and classes in four general categories that are designedto be compatible with different application requirements.1.4.1 Steels with m
5、andatory chemical requirements andtypical mechanical properties.1.4.2 Steels with mandatory chemical requirements andmandatory mechanical properties.1.4.3 Steels with mandatory chemical requirements andmandatory mechanical properties that are achieved throughsolid-solution or bake hardening.1.5 This
6、 specification is applicable to orders in eitherinch-pound units (as A653) or SI units (as A653M). 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.1.6 The text of this specification r
7、eferences notes andfootnotes that provide explanatory material. These notes andfootnotes, excluding those in tables and figures, shall not beconsidered as requirements of this specification.1.7 Unless the order specifies the “M” designation (SIunits), the product shall be furnished to inch-pound uni
8、ts.1.8 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, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to
9、use.1.9 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarrier
10、s to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA568/A568M Specification for Steel, Sheet, Carbon,S
11、tructural, and High-Strength, Low-Alloy, Hot-Rolled andCold-Rolled, General Requirements forA902 Terminology Relating to Metallic Coated Steel Prod-uctsA924/A924M Specification for General Requirements forSteel Sheet, Metallic-Coated by the Hot-Dip ProcessB6 Specification for ZincB852 Specification
12、for Continuous Galvanizing Grade(CGG) Zinc Alloys for Hot-Dip Galvanizing of SheetSteelD7396 Guide for Preparation of New, Continuous Zinc-Coated (Galvanized) Steel Surfaces for PaintingE517 Test Method for Plastic Strain Ratio r for Sheet MetalE646 Test Method for Tensile Strain-Hardening Exponents
13、(n -Values) of Metallic Sheet Materials2.2 ISO Standard:3ISO 3575 Continuous Hot-Dip Zinc-Coated Carbon Steel ofCommercial and Drawing Qualities1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommitte
14、e A05.11 on Sheet Specifications.Current edition approved Nov. 1, 2017. Published November 2017. Originallyapproved in 1994. Last previous edition approved in 2015 as A653/A653M 151.DOI: 10.1520/A0653_A0653M-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cust
15、omer 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.,4th Floor, New York, NY 10036, http:/www.ansi.org.*A Summary of Changes s
16、ection appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision
17、 on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1ISO 4998 Continuous Hot-Dip Zinc-Coated Carbon Steel ofStructural Quality3. Terminology3.1 DefinitionsSee Terminology A902 for
18、definitions ofgeneral terminology relating to metallic-coated hot-dip prod-ucts.3.2 Definitions of Terms Specific to This Standard:3.2.1 bake hardenable steel, nsteel sheet in which asignificant increase in yield strength is realized when moderateheat treatment, such as that used for paint baking, f
19、ollowsstraining or cold working.3.2.2 differentially coated, ngalvanized steel sheet havinga specified “coating designation” on one surface and a signifi-cantly lighter specified “coating designation” on the othersurface.TABLE 1 Weight Mass of Coating RequirementsA,B,CNOTE 1 Use the information prov
20、ided in 8.1.3 to obtain the approximate coating thickness from the coating weight mass.Minimum RequirementDTriple-Spot Test (TST) Single-Spot Test (SST)Inch-Pound UnitsType Coating Designation TSTTotal Both Sides, oz/ft2TSTOne Side, oz/ft2SSTTotal Both Sides, oz/ft2Zinc G01 no minimum no minimum no
21、minimumG30 0.30 0.10 0.25G40 0.40 0.12 0.30G60 0.60 0.20 0.50G90 0.90 0.32 0.80G100 1.00 0.36 0.90G115 1.15 0.40 1.00G140 1.40 0.48 1.20G165 1.65 0.56 1.40G185 1.85 0.64 1.60G210 2.10 0.72 1.80G235 2.35 0.80 2.00G300 3.00 1.04 2.60G360 3.60 1.28 3.20Zinc-iron alloy A01 no minimum no minimum no minim
22、umA25 0.25 0.08 0.20A40 0.40 0.12 0.30A60 0.60 0.20 0.50SI UnitsType Coating Designation TSTTotal Both Sides, g/m2TSTOne Side, g/m2SSTTotal Both Sides, g/m2Zinc Z001 no minimum no minimum no minimumZ90 90 30 75Z120 120 36 90Z180 180 60 150Z275 275 94 235Z305 305 110 275Z350 350 120 300Z450 450 154 3
23、85Z500 500 170 425Z550 550 190 475Z600 600 204 510Z700 700 238 595Z900 900 316 790Z1100 1100 390 975Zinc-iron alloy ZF001 no minimum no minimum no minimumZF75 75 24 60ZF120 120 36 90ZF180 180 60 150AThe coating designation is the term by which the minimum triple spot, total both sides coating weight
24、 mass is specified. Because of the many variables and changingconditions that are characteristic of continuous hot-dip coating lines, the zinc or zinc-iron alloy coating is not always evenly divided between the two surfaces of a coatedsheet; nor is it always evenly distributed from edge to edge. How
25、ever, the minimum triple-spot average coating weight (mass) on any one side shall not be less than 40 %of the single-spot requirement.BAs it is an established fact that the atmospheric corrosion resistance of zinc or zinc-iron alloy-coated sheet products is a direct function of coating thickness (we
26、ight(mass), the selection of thinner (lighter) coating designations will result in almost linearly reduced corrosion performance of the coating. For example, heavier galvanizedcoatings perform adequately in bold atmospheric exposure whereas the lighter coatings are often further coated with paint or
27、 a similar barrier coating for increasedcorrosion resistance. Because of this relationship, products carrying the statement “meets ASTM A653/A653Mrequirements” should also specify the particular coatingdesignation.CInternational Standard, ISO 3575, continuous hot-dip zinc-coated carbon steel sheet c
28、ontains Z100 and Z200 designations and does not specify a ZF75 coating.DNo minimum means that there are no established minimum requirements for triple- and single-spot tests.A653/A653M 1723.2.2.1 DiscussionThe single side relationship of eitherspecified “coating designation” is the same as shown in
29、thenote of Table 1 regarding uniformity of coating.3.2.3 high strength low alloy steel, na specific group ofsheet steels whose strength is achieved through the use ofmicroalloying elements such as columbium (niobium),vanadium, titanium, and molybdenum resulting in improvedformability and weldability
30、 than is obtained from conventionalcarbon-manganese steels.3.2.3.1 DiscussionProducers use one or a combination ofmicroalloying elements to achieve the desired properties. Theproduct is available in two designations, HSLAS andHSLAS-F. Both products are strengthened with microalloys,but HSLAS-F is fu
31、rther treated to achieve inclusion control.3.2.4 minimized spangle, nthe finish produced on hot-dipzinc-coated steel sheet in which the grain pattern is visible tothe unaided eye, and is typically smaller and less distinct thanthe pattern visible on regular spangle.3.2.4.1 DiscussionThis finish is p
32、roduced by one of twomethods: either (1) the zinc crystal growth has been started butarrested by special production practices during solidification ofthe zinc, or (2) the zinc crystal growth is inhibited by acombination of coating-bath chemistry plus cooling duringsolidification of the zinc. Minimiz
33、ed spangle is normallyproduced in coating designations G90 Z275 and lighter.3.2.5 regular spangle, nthe finish produced on hot-dipzinc-coated steel sheet in which there is a visible multifacetedzinc crystal structure.3.2.5.1 DiscussionSolidification of the zinc coating istypically uncontrolled, whic
34、h produces the variable grain sizeassociated with this finish.3.2.6 solid-solution hardened steel or solution hardenedsteel, nsteel sheet strengthened through additions of substi-tutional alloying elements such as Mn, P, or Si.3.2.6.1 DiscussionSubstitutional alloying elements suchas Mn, P, and Si c
35、an occupy the same sites as iron atoms withinthe crystalline structure of steels. Strengthening arises as aresult of the mismatch between the atomic sizes of theseelements and that of iron.3.2.7 spangle-free, nthe uniform finish produced on hot-dip zinc-coated steel sheet in which the visual spangle
36、 pattern,especially the surface irregularities created by spangleformation, is not visible to the unaided eye.3.2.7.1 DiscussionThis finish is produced when the zinccrystal growth is inhibited by a combination of coating-bathchemistry, or cooling, or both during solidification of the zinc.3.2.8 zinc
37、-iron alloy, na dull grey coating with no spanglepattern that is produced on hot-dip zinc-coated steel sheet.3.2.8.1 DiscussionZinc-iron alloy coating is composedentirely of inter-metallic alloys. It is typically produced bysubjecting the hot-dip zinc-coated steel sheet to a thermaltreatment after i
38、t emerges from the molten zinc bath. This typeof coating is suitable for immediate painting without furthertreatment except normal cleaning (refer to Guide D7396). Thelack of ductility of the alloy coating presents a potential forpowdering, etc.4. Classification4.1 The material is available in sever
39、al designations asfollows:4.1.1 Commercial steel (CS Types A, B, and C),4.1.2 Forming steel (FS Types A and B),4.1.3 Deep drawing steel (DDS Types A and C),4.1.4 Extra deep drawing steel (EDDS),4.1.5 Structural steel (SS),4.1.6 High strength low alloy steel (HSLAS),4.1.7 High strength low alloy stee
40、l with improved formabil-ity (HSLAS-F),4.1.8 Solution hardened steel (SHS), and4.1.9 Bake hardenable steel (BHS).4.2 Structural steel, high strength low alloy steel, solutionhardened steel, and bake hardenable steel are available inseveral grades based on mechanical properties. Structural SteelGrade
41、 50 340 is available in four classes based on tensilestrength. Structural Steel Grade 80 550 is available in threeclasses, based on chemistry.4.3 The material is available as either zinc-coated or zinc-iron alloy-coated in several coating weights masses orcoating designations as shown in Table 1 and
42、 in Table S2.1,and4.3.1 The material is available with the same or differentcoating designations on each surface.5. Ordering Information5.1 Zinc-coated or zinc-iron alloy-coated sheet in coils andcut lengths is produced to thickness requirements expressed to0.001 in. 0.01 mm. The thickness of the sh
43、eet includes boththe base metal and the coating.5.2 Orders for product to this specification shall include thefollowing information, as necessary, to adequately describe thedesired product:5.2.1 Name of product (steel sheet, zinc-coated (galvanized)or zinc-iron alloy-coated (galvannealed),5.2.2 Desi
44、gnation of sheet CS (Types A, B, and C), FS(Types A and B), DDS (Types A and C), EDDS, SS, HSLAS,HSLAS-F, SHS, or BHS.5.2.2.1 When a CS type is not specified, CS Type B will befurnished. When a FS type is not specified, FS Type B will befurnished. When a DDS type is not specified, DDS Type A willbe
45、furnished.5.2.3 When a SS, HSLAS, HSLAS-F, SHS, or BHS desig-nation is specified, state the grade, or class, or combinationthereof.5.2.4 ASTM designation number and year of issue, as A653for inch-pound units or A653M for SI units.5.2.5 Coating designation,5.2.6 Chemically treated or not chemically t
46、reated,5.2.7 Oiled or not oiled,5.2.8 Minimized spangle (if required),5.2.9 Extra smooth (if required),5.2.10 Phosphatized (if required),5.2.11 Dimensions (show thickness, minimum or nominal,width, flatness requirements, and length, (if cut lengths).A653/A653M 1735.2.12 Coil size requirements (speci
47、fy maximum outsidediameter (OD), acceptable inside diameter (ID), and maximumweight mass),5.2.13 Packaging,5.2.14 Certification, if required, heat analysis and mechani-cal property report,5.2.15 Application (part identification and description), and5.2.16 Special requirements (if any).5.2.16.1 If re
48、quired, the product may be ordered to aspecified base metal thickness (see Supplementary Require-ment S1.)5.2.16.2 If required, the product may be ordered to aspecified single spot/single side coating mass (see Supplemen-tary Requirement S2.)5.2.16.3 When the purchaser requires thickness tolerancesf
49、or38-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,zinc-coated, commercial steel Type A, ASTM A653, Coating DesignationG115, chemically treated, oiled, minimum 0.040 by 34 by 117 in., forstock tanks, or steel sheet, zinc-coated, high strength low alloy steel Grade340, ASTM A653M, Coating Designation Z275, minimized spangle, notchemically treated, oiled
