Specification
UNS/CDA: UNS. C51100, CW450K, CuSn4
DIN: JIS C5111, PB101, BB40 Diehl Metall
Chemical Composition
Sn: 3.50-4.90%
P: 0.03-0.35%
Zn: 0.30%
Fe: 0.10% Max.
Pb: 0.05% Max.
Cu: Balance
Copper plus additions equal: 99.5% Min.
Physical Properties
Density (g/cm3): 8.83
Density before age hardening (g/cm3): 8.75
Elastic Modulus (kg/mm2 (103)): 14.10
Melting Range (°C): 1000-1070
Thermal Conductivity (cal/(cm-s-°C)): 0.48
Thermal Expansion Coefficient (20°C to 200°C m/m/°C): 18x10-6
Note:
1). the units are based upon Metric.
2). the typical physical properties apply to age hardened products.
Application
Electrical Industry: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay parts, Connectors, Spring Connectors, Contact Bridges, Belleville Washers, Navigational Instruments, Clips Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts Industrial: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows.
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