1、BRITISH STANDARDBS EN ISO 4526:2004Metallic coatings Electroplated coatings of nickel for engineering purposesICS 25.220.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53
2、g44g42g43g55g3g47g36g58Incorporating corrigendumJune 2009 BS EN ISO 4526:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 5 January 2005 BSI 2009National forewordCompliance with a British Standard legal obligations.cannot confer immunity f
3、rom This British Standard is the UK implementation of EN ISO 4526:2004. It is identical with ISO 4526:2004. It supersedes BS 4758:1986, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings.A list of organization
4、s represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.$PHQGPHQWVFRUULJHQGDLVVXHGVLQFHSXEOLFDWLRQAmd. No. Date Comments 15788 28 April 2008
5、Renumbers BS ISO 4526:2004 as BS EN ISO 4526:200430 June 2009 Addition of supersession details in National Foreword,6%1EUROPEANSTANDARDNORMEEUROPENNEEUROPISCHENORMENISO4526June 2004ICS 25.220.40English versionMetallic coatings Electroplated coatings of nickel forengineering purposes (ISO 4526:2004)R
6、evtements mtalliques Depts lectrolytiques de nickelpour usages industriels (ISO 4526:2004)This European Standard was approved by CEN on 13 May 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of
7、a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version i
8、n any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finl
9、and, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORM
10、UNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 4526:2004: EForewordThis document (EN ISO 4526:2004) has been prepared by Technical Committee ISO/TC 107,Metallic and
11、other inorganic coatings, in collaboration with Technical Committee CEN/TC 262,Metallic and other inorganic coatings, the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication ofan identical text or by endorsement, at the l
12、atest by December 2004, and conflicting national standards shall be withdrawn at the latest by December 2004.According to the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Cyprus,Czech
13、 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.Endorsement noticeThe text of ISO 4526:2004 has been approved
14、by CEN as EN ISO 4526:2004 without anymodifications.Reference numberISO 4526:2004(E)OSI 4002INTERNATIONAL STANDARDISO4526Second edition2004-05-15Metallic coatings Electroplated coatings of nickel for engineering purposes Revtements mtalliques Dpts lectrolytiques de nickel pour usages industriels Thi
15、s page deliberately left blankiiI SO 4002 All irthgs ersedevr iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions. 24 Information to be supplied to the electroplater . 25 Designation 36 Requirements 67 Sampling 8Annex A (informative) Typical compositio
16、n and operating conditions of Watts and nickel sulfamate solutions, and mechanical properties of nickel electrodeposited from those solutions 9Annex B (informative) Test methods for determining thickness. 10Annex C (normative) Hot water porosity test 11Annex D (normative) Modified ferroxyl test. 12A
17、nnex E (informative) Additional information for different applications 13Bibliography . 14BS EN ISO 4526:2004 EN ISO 4526:2004(E)iv I SO 4002 All irthgs ersedevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies
18、). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and no
19、n-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Par
20、t 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting
21、 a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 4526 was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatin
22、gs,Subcommittee SC 3, Electrodeposited coatings and related finishes.This second edition cancels and replaces the first edition (ISO 4526:1984), which has been technically revised. BS EN ISO 4526:2004 EN ISO 4526:2004(E)I SO 4002 All irthgs ersedevr vIntroduction Engineering nickel coatings are spec
23、ified for various applications such as improved hardness, wear and corrosion resistance, load-bearing characteristics, heat-scaling resistance, corrosion fatigue resistance and other improvements in surface properties. Electrodeposited nickel is also, used in engineering applications to salvage worn
24、 or incorrectly machined manufactured articles, and function as diffusion barriers in combination with other metallic coatings. Engineering nickel coatings usually contain greater than 99 % nickel and are most frequently electrodeposited from additive-free Watts or nickel sulfamate solutions. Typica
25、l solution compositions, operating conditions and mechanical properties of electrodeposits from these solutions are given in Annex A. When increased hardness, greater wear resistance, modified deposit internal stress values and enhanced levelling characteristics are required, particles of organic ad
26、ditives such as silicon carbide, tungsten carbide, aluminium oxide, chromium carbide and other substances may be introduced into these solutions. The use of sulfur-containing organic additives to increase hardness and to lower residual internal stress is feasible only when the end-use involves expos
27、ure to low or moderate temperatures. High temperature exposure of nickel coatings that contain sulfur may result in embrittlement and cracking of the coating. The effect is time-dependent and may become evident at 150 C if the time of heating is sufficiently long. A notable trend is the growing util
28、isation of nickel alloy electroplating processes for engineering applications. These include binary alloys of nickel with cobalt, iron, manganese, molybdenum, phosphorus and tungsten. BS EN ISO 4526:2004 EN ISO 4526:2004(E)blankI SO 4002 All irthgs ersedevr 1Metallic coatings Electroplated coatings
29、of nickel for engineering purposes 1 Scope This International Standard specifies requirements for electroplated nickel and nickel alloy coatings applied to ferrous and non-ferrous basis metals for engineering purposes. Binary nickel alloys in which nickel is a minor constituent are outside the scope
30、 of this International Standard. The designation provides a means of specifying the type and thickness of nickel and nickel alloy coatings appropriate for engineering applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For d
31、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method ISO 2064, Metallic and other inorganic coatings Defin
32、itions and conventions concerning the measurement of thickness ISO 2079, Surface treatment and metallic coatings General classification of terms ISO 2080, Electroplating and related processes Vocabulary ISO 2177, Metallic coatings Measurement of coating thickness Coulometric method by anodic dissolu
33、tion ISO 2361, Electrodeposited nickel coatings on magnetic and non-magnetic substrates Measurement of coating thickness Magnetic method ISO 2819, Metallic coatings on metallic substrates Electrodeposited and chemically deposited coatings Review of methods available for testing adhesion ISO 3497, Me
34、tallic coatings Measurement of coating thickness X-ray spectrometric methodsISO 3543, Metallic and non-metallic coatings Measurement of thickness Beta backscatter method ISO 3882, Metallic and other inorganic coatings Review of methods of measurement of thickness ISO 4516, Metallic and other inorgan
35、ic coatings Vickers and Knoop microhardness tests ISO 4519, Electrodeposited metallic coatings and related finishes Sampling procedures for inspection by attributes ISO 8401, Metallic coatings Review of methods of measurement of ductility ISO 9220, Metallic coatings Measurement of coating thickness
36、Scanning electron microscope method BS EN ISO 4526:2004 EN ISO 4526:2004(E)2 I SO 4002 All irthgs ersedevrISO 9587, Metallic and other inorganic coatings Pretreatments of iron or steel to reduce the risk of hydrogen embrittlement ISO 9588, Metallic and other inorganic coatings Post-coating treatment
37、s of iron or steel to reduce the risk of hydrogen embrittlement ISO 10289, Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates Rating of test specimens and manufactured articles subjected to corrosion tests ISO 10587, Metallic and other inorganic coatings Te
38、st for residual embrittlement in both metallic-coated and uncoated externally-threaded articles and rods Inclined wedge method ISO 12686, Metallic and other inorganic coatings Automated controlled shot-peening of metallic articles prior to nickel, autocatalytic nickel or chromium plating, or as a fi
39、nal finish ISO 15724, Metallic and other inorganic coatings Electrochemical measurement of diffusible hydrogen in steels Barnacle electrode method EN 12508, Corrosion protection of metals and alloys Surface treatment, metallic and other inorganic coatings Vocabulary3 Terms and definitions For the pu
40、rposes of this document, the terms and definitions given in ISO 2064, ISO 2079, ISO 2080 and EN 12508 apply. 4 Information to be supplied to the electroplater 4.1 Essential information When ordering articles to be electroplated, in accordance with this International Standard, the purchaser shall pro
41、vide the following information in writing, e.g. in the contract or purchase order, or on engineering drawings. a) The designation (see Clause 5). b) The requirements for special test specimens (see 6.1). c) The significant surface, indicated by drawings of the articles or by suitably marked samples
42、(see 6.2). d) The final surface finish, e.g. as-plated, ground, machined or polished. Alternatively, samples showing the required finish shall be supplied or approved by the purchaser, and used for comparison purposes (see 6.2 and 6.3). e) The type and size of defects with the number of defects that
43、 can be tolerated per item, for the surface or per square decimetre of surface (see 6.2). f) Additional portions of the surface where minimum thickness requirements apply (see 6.4). g) The test methods to be used to measure thickness, adhesion and porosity and, if required, those for internal stress
44、 and ductility (see 6.4, 6.6, 6.7, 6.11 and 6.12, respectively). h) The tensile strength of parts and the requirement for stress relief heat treatment before electroplating (see 6.8). i) The requirement for hydrogen embrittlement relief after electroplating, and the hydrogen embrittlement test metho
45、ds (see 6.9). j) The sampling plan and acceptance levels (see Clause 7). BS EN ISO 4526:2004 EN ISO 4526:2004(E)I SO 4002 All irthgs ersedevr 34.2 Additional information The following additional information may be provided by the purchaser, when appropriate: a) the nominal composition or specificati
46、on, and metallurgical condition of the basis metal including hardness (see 5.3); NOTE In the case of reclaimed articles, it may not be possible to supply this information, and it may, therefore, be difficult to guarantee the quality of the coating.b) the necessity for peening before or after electro
47、plating (see 6.10); c) any special requirements for, or restrictions on, pre-treatment, e.g., vapour blasting instead of acid pre-treatment; d) requirements for undercoats and/or overcoats (see 5.5); e) where appropriate, any special requirements for surface finish, hardness and adhesion (see 6.3, 6
48、.5 and 6.6, respectively). 5 Designation 5.1 General The designation shall appear on engineering drawings, in the purchase order, the contract or in the detailed product specification. The designation specifies, in the order given, the basis material, its standard designation (optional), stress reli
49、ef requirements, the type and thickness of undercoats, the type and thickness of the nickel or nickel alloy coating, the type and thickness of coatings applied over the nickel or nickel alloy coating, and post-treatments including heat treatment. 5.2 Components The designation shall comprise the following: a) the term, “Electrodeposited coating”; b) the number of this International Stan
