Specification
UNS/CDA: UNS. C51000, CW451K, CuSn5
DIN: JIS C5102, PB102, BB50 Diehl Metall
Chemical Composition
| Grade | Cu | Fe | Pb | P | Sn | Zn |
| C51000 | Remainder | 0.1 | 0.05 | 0.03-0.35 | 4.2 - 5.8 | 0.3 |
Different countries' Standard comparison table of Phosphor bronze
| GB | DIN | EN | ISO | UNS | JIS |
| - | CuSn5 | 2.1018 | CuSn5 | CW451K | CuSn5 | C51000 | C5102 |
| QSn6.5-0.1 | CuSn6 | 2.1020 | CuSn6 | CW452K | CuSn6 | C51900 | C5191 |
| QSn8-0.3 | CuSn8 | 2.1030 | CuSn8 | CW453K | CuSn8 | C52100 | C5210
|
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.
