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Commentary on corrosion at bimetallic contacts and its alleviation
This document gives guidance to designers, to help them to avoid situations in which corrosion may arise from the interaction of different metals and alloys at bimetallic contacts.
It comprises two sections. Section 1 gives details of conditions affecting corrosion at bimetallic contacts and methods of alleviating it, and section 2 consists of annotated tables indicating the degree of additional corrosion likely to occur at bimetallic contacts exposed to atmospheric and aqueous environments.
The document does not deal with other environments, such as those encountered in chemical engineering, where the effects may be different, and it does not refer to situations where contact between certain metals, even below their melting point, may lead to some interpenetration and consequential embrittlement.
The metals and alloys are identified in the tables by their generally accepted descriptions, but it will be appreciated that many variations in composition and condition are found in practice. For further information on the behaviour of particular alloys, reference should be made to the appropriate development association, trade association, manufacturer or supplier. In the case of defence stores, further information may be obtained from the appropriate branch of the Ministry of Defence.
| SDO | BSI: British Standards Institution |
| Document Number | 6484 |
| Publication Date | March 30, 1979 |
| Language | en - English |
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| Committee | ISENFE/8 |
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