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Call 800-362-5255 for Pricing and Product Availability or email sales@sequoia-brass-copper.com
 
 

*ALLOY 642 ALUMINUM SILICON BRONZE

COMMON FABRICATION PROCESSES AND TYPICAL USES


CHEMICAL COMPOSITION
 
Cu Al As Fe Pb Mn Ni Si Sn Zn
Min/Max Rem. 6.3-7.6 0.09 0.3 0.05 0.1 0.25 1.5-2.2 0.2 0.5
Nominal 91.2 7           1.8    
 
COMMON FABRICATION PROCESSES FOR 642 ALUMINUM SILICON BRONZE

Forging, hot forming, machining
 
FABRICATION PROPERTIES
 
Joining Technique Suitability
Soldering Not Recommended
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Spot Weld Fair
Seam Weld Fair
Butt Weld Fair
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Forgeability Rating: 80  
Machinability Rating: 60  
 
Product Forms
Bar
Rod
Shapes
     

TYPICAL USES OF 642 ALUMINUM SILICON BRONZE

Automotive
Valve guides, automobile engine
Electrical
Pole line hardware
Fasteners
Nuts, bolts
Industrial
Valve bodies, valve stems, gears, cams, valve components
Marine
Hardware
 
 
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Hayward, CA 94545

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