BS 4641:1986
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Method for specifying electroplated coatings of chromium for engineering purposes
Hardcopy , PDF
30-06-2009
English
31-01-1986
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Foreword
Committees responsible
Method
1. Scope
2. Definitions
3. Exchange of information
4. Sampling
5. Treatment of basis metals before electroplating
6. Coatings
7. Heat treatment after electroplating
Appendices
A. Guidance on types and uses of chromium coatings
B. Heat treatment
C. Method for establishing peening conditions
D. Determination of coating thickness
E. Test for porosity of coatings on ferrous articles
F. Visual examination for cracks
Tables
1. Summary of information required
2. Peening intensities
3. Categories of steels and maximum tensile strengths
corresponding to specified minimum tensile strengths
4. Recommendations for heat treatment, for stress
relief, before electroplating (excluding surface-
hardened parts)
5. Heat treatment after electroplating (excluding
surface-hardened parts)
Figure
1. Test specimen mount
Method for specifying requirements for chromium coatings usually of substantial thickness on ferrous and non-ferrous metals. Covers stress relief treatment before coating, the appearance, surface finish, thickness, hardness, adhesion and porosity of the coating, heat treatment after coating and sampling.
| Committee |
STI/33
|
| DevelopmentNote |
Supersedes 84/51383 DC and BS 4641(1970) (08/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy |
| BS 5411-6:1981 | Methods of test for metallic and related coatings Vickers and Knoop microhardness tests |
| BS 1224:1970 | Specification for electroplated coatings of nickel and chromium |
| BS 1134-1:1972 | Method for the assessment of surface texture Method and instrumentation |
| BS 3745:1970 | Method for the evaluation of results of accelerated corrosion tests on metallic coatings |
| BS 4758:1986 | Method for specifying electroplated coatings of nickel for engineering purposes |
| BS 5411-1(1980) : 1980 AMD 8494 | METHODS OF TEST FOR METALLIC AND RELATED COATINGS - DEFINITIONS AND CONVENTIONS CONCERNING THE MEASUREMENT OF THICKNESS |
| BS 6001(1972) : AMD 5054 | SAMPLING PROCEDURES FOR INSPECTION BY ATTRIBUTES - SPECIFICATION FOR SAMPLING PLANS INDEXED BY ACCEPTABLE QUALITY LEVEL (AQL) FOR LOT - BY - LOT INSPECTION |
| BS 5411-7(1981) : 1980 AMD 8483 | METHODS OF TEST FOR METALLIC AND RELATED COATINGS - PROFILOMETRIC METHOD FOR MEASUREMENT OF COATING THICKNESS |
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