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Specifications
CuSn8 - UNS.C52100 Phosphor Bronze Alloys1.high conductivity
2.high tensile strength
3. Switch Parts
4.Welding material
C52100 Phosphor Bronze
CuSn8 - UNS.C52100 Phosphor Bronze Alloys, which is a 8% tin bronze distinguished by a very good combination of strength and electrical conductivity. It is used for connector and current-carrying springs in contacts. Among the 4-8% tin bronze C52100 exhibits the lowest electrical conductivity, the highest reachable strength is significantly higher than C51100 and C51000 and C51900. By means of an additional further tempering after the cold forming process the bendability can be further improved.
In addition, it has better corrosion resistance and good sliding properties. C52100 is used for springy components and sliding elements when increased strength and wear-resistance are required.
Typical Application for C52100 Phosphor Bronze Alloys
Architecture: Bridge Bearing Plates
Building: Thermostat Bellows
Consumer: Coinage, Cymbals, Power Conductor for Electro-Surgical Pencil
Marine: Marine Parts
Electrical: Components of Electrical Engineering,Electrical Connectors, Electronic Connectors, Cold Headed Parts, Electrical Flexing Contact Blades, Wire Brushes, Switch Parts, Fuse Clips, Frame Connectors
Fasteners: Fasteners, Lock Washers, Cotter Pins
Industrial: Automotives, Conductor Springs, Retaining Clamps, Slide Bearings,Springs, Helical Extension, Diaphragms, Doctor Blades, Paper Industry, Bourdon Tubing, Thrust Bearings, Clutch Disks, Welding Wire, Well Drill Equipment, Beater Bar, Springs, Helical Torsion, Clips, Gears, Pinions, Bellows, Truss Wire, Pneumatic Hammers, Cold Headed Parts, Textile Machinery, Perforated Sheets
Available Sizes:
Custom Diameter & Sizes, Random Mill lengths
Available Products (forms):
Round bars, Flat bars, Square bars, Round Wires, Round Strips
Custom shapes are available upon request.
Chemical Composition:
Sn: 7.50-8.50%
P: 0.03-0.35%
Zn: 0.20% Max.
Fe: 0.10% Max.
Pb: 0.05% Max.
Zn: Balance
Note: Copper plus additions equal 99.50% minimum.
Typical Physical Properties:
Specific Gravity: 8.80 g/cm3
Coefficient of Thermal Expansion per °C: 18.20 x 10-6 (20-300°C)
Electrical Conductivity (% IACS): 13.00 % @ 68 F
Thermal Conductivity: 36.00 Btu · ft/(hr · ft2·oF)at 68F
Modulus of Elasticity in tension: 16000 ksi
Note:
1). the units are based upon US Customary.
2). the typical physical properties apply to age hardened products.
International Specification:
Rods/Bars/Strips: UNS.C52100, CDA521, ASTM B139, B103, B888, B159
European Standards: CuSn6, JIS C5210, CW 453 K, PB 104
Note:
ASTM: American Society for Testing and Materials
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced to DIN & RWMA.
Mechanical Properties:
The detailed Mechanical Properties will be available on request from customers.
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