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C64700 Nickel Silicon Bronze
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C64700 Nickel Silicon Bronze

CuNi3Si, DTD 498 (Directorate of Technical Development) 

C64700 Nickel Silicon Bronze is a heat treatable Nickel Silicon Bronze alloy. It has very high mechanical strength, good wear and corrosion resistance in both marine and industrial conditions. C64700 Nickel Silicon Bronze is famous for its good anti-friction properties and is extensively used for plunger tips for die casting machines connectors, possessing high electrical and thermal conductivity with very good notch ductility.

Typical Uses for C64700 Nickel Silicon Bronze:

RAILWAY INDUSTRY: valve guides, bearing cages

AEROSPACE INDUSTRY: short-circuit rings, rotors anti-friction rings, insert for plastic injection molds


End Product Specification
Bar ASTM B411
Rod ASTM B411
Wire ASTM B412

Cu Fe Pb Ni Si Zn
Min./Max. Rem. .10 .09 1.6-2.2 .40-.8 .50
Nominal 97.5 - - 1.9 .6 -
Product Property US Customary Metric
Density 0.322 lb/in3 at 68 F 8.91 gm/cm3 @ 20 C
Specific Gravity 8.910 8.91

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