CuSn5 — C51000
CuSn5 - UNS.C51000 Phosphor Bronze Alloys, with a nominal composition of 94.80% copper and 5.0% tin, deoxidized with 0.2% phosphorus is the most widely used of the phosphor bronzes
CuSn5 — C51000
CuSn5 - UNS.C51000 Phosphor Bronze Alloys, with a nominal composition of 94.80% copper and 5.0% tin, deoxidized with 0.2% phosphorus is the most widely used of the phosphor bronzes, which offering an optimum combinations of such engineering properties as high strength and ductility, superior fatigue and spring characteristics, excellent corrosion resistance, durability for severe service, good bearing qualities with low friction and higher wear resistance, superior forming and spinning, resistance to stress relaxation and good joining properties. In most cases, C51000 alloy has adequate electrical and thermal properties for many current-carrying and heat transfer requirements.
Flat Springs made of C51000 alloy have the following important advantages over steel springs. (1). Being Non-Magnetic (2). Having higher electrical and thermal conductivity (3). Greater resistance to corrosion (4). Less susceptible to combined corrosion and fatigue (5). Higher ratio of safe stress to modules allowing larger deflections with lower bending stresses (6). More easily fabricated or formed.
C51000 Alloy typical applications for phosphor bronze include bearings, bushings, gears, pinions, shafts, thrust washers and valve parts.
Where C51000 Is Used
Typical end uses published by ALB for this grade.
Architecture
Bridge Bearing Plates
Electrical
Terminals, Contacts, Switch Parts, Electromechanical Spring Components, Resistance Wire, Electrical Flexing Contact Blades, Electrical Connectors, Electronic Connectors, Wire Brushes, Electronic and Precision Instrument Parts, Fuse Clips, Terminal Brackets, Kettles, Pots, Perforated sheets, Textile Machinery parts
Fasteners
Lock Washers, Fasteners, Cotter Pins
Industrial
Bellows, Textile Machinery, Perforated Sheets, Chemical Hardware, Truss Wire, Mechanical Springs, Sleeve Bushings, Diaphragms, Clutch Disks, Bourdon Tubes, Beater Bar, Welding Rods, Pressure Responsive Elements, Sprinkler Parts
Specifications And Material Data
| Sn | 4.50-5.50% |
|---|---|
| P | 0.03-0.35% |
| Zn | 0.30% Max. |
| Fe | 0.10% Max. |
| Pb | 0.05% Max. |
| Zn | Balance |
Copper plus additions equal 99.50% minimum.
| Specific Gravity | 8.86 g/cm3 |
|---|---|
| Coefficient of Thermal Expansion per °C | 17.80 x 10-6 (20-300°C) |
| Electrical Conductivity (% IACS) | 15% @ 68 F |
| Thermal Conductivity | 40.00 Btu · ft/(hr · ft2·oF)at 68F |
| Modulus of Elasticity in tension | 16000 ksi |
1). the units are based upon US Customary. 2). the typical physical properties apply to age hardened products.
Sizes And Product Forms
Available Sizes
Custom Diameter & Sizes, Random Mill lengths
Available Products And Forms
Round bars, Flat bars, Square bars, Round Wires, Round Strips
Custom shapes are available upon request.
International Specification
| Rods/Bars/Strips | UNS.C51000, CDA510, ASTM B139, B103, B888 |
|---|---|
| European Standards | CuSn5, JIS C5102, CW 451 K, PB 102 |
Unless otherwise specified, material will be produced to DIN & RWMA.
Abbreviations
- ASTM — American Society for Testing and Materials
- RWMA — Resistance Welder Manufacturers' Association
Tempers And Mechanical Data
The detailed Mechanical Properties will be available on request from customers.
Frequently Asked Questions
Answers drawn from the ALB technical data for this page.
What is the chemical composition of C51000?
C51000 is supplied to the following nominal composition:
- Sn: 4.50-5.50%
- P: 0.03-0.35%
- Zn: 0.30% Max.
- Fe: 0.10% Max.
- Pb: 0.05% Max.
- Zn: Balance
What are the typical physical properties of C51000?
Typical values published by ALB for C51000:
- Specific Gravity: 8.86 g/cm3
- Coefficient of Thermal Expansion per °C: 17.80 x 10-6 (20-300°C)
- Electrical Conductivity (% IACS): 15% @ 68 F
- Thermal Conductivity: 40.00 Btu · ft/(hr · ft2·oF)at 68F
- Modulus of Elasticity in tension: 16000 ksi
Which international specifications does C51000 meet?
- Rods/Bars/Strips: UNS.C51000, CDA510, ASTM B139, B103, B888
- European Standards: CuSn5, JIS C5102, CW 451 K, PB 102
Can you supply mechanical property data for C51000?
The detailed Mechanical Properties will be available on request from customers.
Which product forms and sizes are available?
Custom Diameter & Sizes, Random Mill lengths Round bars, Flat bars, Square bars, Round Wires, Round Strips Custom shapes are available upon request.
How do I request a quotation?
Email the grade, temper, dimensions and quantity to [email protected]. Unless otherwise specified, material is produced to ASTM.
Quote C51000 To Your Specification
Send grade, temper, dimensions and quantity. Custom shapes are available on request.