ASTM B633-2013 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel《铁和钢表面电解沉积镀锌涂层的标准规格》.pdf
《ASTM B633-2013 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel《铁和钢表面电解沉积镀锌涂层的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM B633-2013 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel《铁和钢表面电解沉积镀锌涂层的标准规格》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B633 13Standard Specification forElectrodeposited Coatings of Zinc on Iron and Steel1This standard is issued under the fixed designation B633; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 material and process requi
3、re-ments for electrodeposited zinc coatings applied to iron or steelarticles to protect them from corrosion.1.2 The coatings are provided in four standard thicknessclasses (4.1), in the as-plated condition or with one of fivetypes of supplementary finishes (4.2).1.3 High strength metals, unless othe
4、rwise specified, includ-ing high strength steels having a tensile strength greater than1700 MPa (247 ksi, 46HRC) shall not be electroplated.1.4 It does not cover continuous processes for electrodepos-ited zinc coated steel wire or sheets (see Specification A591/A591M for sheets.)1.5 It may be used f
5、or fasteners but specific specificationshave been developed for manufacturing fasteners in CommitteeF16 which may be more applicable (see Specifications F1941and F1941M.1.6 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.7 Thi
6、s 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 prior to use.1.8 This standard has
7、been revised to address RoHS re-quirements that seek to limit the exposure of workers and thepublic from exposure to toxic metals. Additional types V and VIhave been added to permit non-chromate passivate treatmentsto be used in replacement of hexavalent chromium.2. Referenced Documents2.1 ASTM Stan
8、dards:2A591/A591M Specification for Steel Sheet, ElectrolyticZinc-Coated, for Light Coating Weight Mass Applica-tions (Withdrawn 2005)3B117 Practice for Operating Salt Spray (Fog) ApparatusB183 Practice for Preparation of Low-Carbon Steel forElectroplatingB201 Practice for Testing Chromate Coatings
9、on Zinc andCadmium SurfacesB242 Guide for Preparation of High-Carbon Steel for Elec-troplatingB254 Practice for Preparation of and Electroplating onStainless SteelB320 Practice for Preparation of Iron Castings for Electro-platingB322 Guide for Cleaning Metals Prior to ElectroplatingB374 Terminology
10、Relating to ElectroplatingB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionB499 Test Method for Measurement of Coating Thicknessesby the Magnetic Method: Nonmagnetic Coatings onMagnetic Basis MetalsB504 Test Method for Measurement of Th
11、ickness of Metal-lic Coatings by the Coulometric MethodB567 Test Method for Measurement of Coating Thicknessby the Beta Backscatter MethodB568 Test Method for Measurement of Coating Thicknessby X-Ray SpectrometryB571 Practice for Qualitative Adhesion Testing of MetallicCoatings1This specification is
12、 under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and is the direct responsibility of SubcommitteeB08.06 on Soft Metals.Current edition approved May 15, 2013. Published June 2013. Originallyapproved in 1978. Last previous edition approved in 2011 as B633 11. DOI:10.1520
13、/B0633-13.2For 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.3The last approved version of this historical stand
14、ard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B602 Test Method for Attribute Sampling of Metallic andInorganic CoatingsB697 Guide for Selection of Sampling Plans for Inspectionof Electrodeposited Met
15、allic and Inorganic CoatingsB762 Test Method of Variables Sampling of Metallic andInorganic CoatingsB849 Specification for Pre-Treatments of Iron or Steel forReducing Risk of Hydrogen EmbrittlementB850 Guide for Post-Coating Treatments of Steel for Reduc-ing the Risk of Hydrogen EmbrittlementD2092 G
16、uide for Preparation of Zinc-Coated (Galvanized)Steel Surfaces for Painting (Withdrawn 2008)3F1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionF1941 Specification for Electrodeposited Coatings onThreaded Fasteners (Unified Inch Screw Threads (UN/UNR)
17、F1941M Specification for Electrodeposited Coatings onThreaded Fasteners (Metric)2.2 Military Standard:4MIL-STD-1312 Fastener Tests, Methods (Test 12)3. Terminology3.1 Definitions:3.1.1 Definitions of the terms used in this specification arein accordance with Terminology B374.3.1.2 passivatefor the p
18、urpose of this specification, aconversion coating on zinc shall not contain hexavalent chro-mium.4. Classification4.1 ThicknessThe coating shall be provided in one of thefour thickness classes defined in Table 1.4.2 FinishThe coating shall have one of the finish typesdefined in Table 2.5. Ordering I
19、nformation5.1 When ordering the electroplating of articles, the pur-chaser shall state ASTM B633, the date of issue, servicecondition number, and the Type (see 4.1, 4.2, and 7.1).5.2 If necessary, the purchaser shall include on his partdrawings or purchase order the following:5.2.1 Basis metal alloy
20、 designation and ultimate tensilestrength of the steel,5.2.2 Thickness, if other than specified (4.1, 7.1),5.2.3 Location of significant surface (7.1.1, 7.1.2),5.2.4 Luster (7.3),5.2.5 Exceptions to stress relief heat treatment prior toplating, (6.4),5.2.6 Exception to Hydrogen Embrittlement Relief
21、afterplating, (6.5).5.2.7 Corrosion resistance test, if specified (9.3, 10.3),5.2.8 Hydrogen embrittlement test, if required (9.4, 10.4),including the tensile strength of the items,5.2.9 Sample size for inspection, if other than specified, and5.2.10 Supplementary requirements, if applicable (seeSupp
22、lementary Requirement).6. Materials and Manufacture6.1 The coatings shall be non-alloyed zinc produced byelectrodeposition.6.2 Defects in the surface of the basis metal, such asscratches, porosity, pits, inclusions, cracks, roll marks, and diemarks, may adversely affect the appearance and performanc
23、eof coatings applied thereto despite the observance of the bestelectroplating practices. Accordingly, the electroplaters re-sponsibility for defects in the coating resulting from suchconditions shall be waived, except when he is the primecontractor supplying electroplated parts. In this event, the b
24、asismetal shall be subjected to such polishing or buffing operationsas are necessary to yield deposits with the desired final lusterand appearance. To minimize problems of this sort, thespecifications covering the basis material on the item to beelectroplated shall contain appropriate limitations to
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