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Slide 56 of 69
Notes:
Brasses can be readily joined to other copper alloys and most other metals by commercial joining processes.-
Brasses can be bolted or riveted, but care must be taken in selecting an appropriate material for the bolts and rivets to ensure no galvanic corrosion takes place in service.
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Modern adhesives can be used to join brasses but because like all copper alloys brass quickly forms a surface oxide pre cleaning is essential to ensure a good bond. The adhesive suppliers advice on joint design and surface preparation techniques should always be sought.
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Soldering is a low cost and simple method of joining brass using low melting point alloys. Traditional solders have tended to be lead/tin alloys but modern lead free solders are now becoming available. Fluxes used in soldering should always be washed away after soldering to prevent staining and tarnishing.
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All brasses other than those containing more than 1.5% lead (under controlled conditions 3%Pb may be possible) and less than 10% aluminium are readily brazed. Brazing is a high temperature joining process where the filler metal (which melts below the melting point of the metals to be joined) penetrates between the close fitting metals to be joined by capillary attraction.
