CuSn6 — C51900
CuSn6 - UNS.C51900 Phosphor Bronze Alloys, which is a 6% tin bronze distinguished by a very good combination of strength and electrical conductivity.
CuSn6 — C51900
CuSn6 - UNS.C51900 Phosphor Bronze Alloys, which is a 6% 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 C51900 exhibits a high electrical conductivity, the highest reachable strength is significantly higher than C51100 and C51000. By means of an additional further tempering after the cold forming process the bendability can be further improved.
Its adequate conductivity makes it particularly interesting for springy conductive components. It is wear-resistant, has very good corrosion resistance and can be readily soldered. Due to the higher strength and springiness and good workability, C51900 is used for all types of springs as well as for flexible metal hoses. In addition, it is applied in the paper, pulp, textile and chemical industries, as well as in shipbuilding, mechanical engineering and process equipment manufacture.
Where C51900 Is Used
Typical end uses published by Vital for this grade.
Electrical
Stamped Parts,springs, Components of Electrical Engineering, 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
Fasteners
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, Automotive Parts
Specifications And Material Data
| Sn | 5.50-7.00% |
|---|---|
| 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 | 8.80 g/cm3 |
|---|---|
| Coefficient of Thermal Expansion per °C | 18.50 x 10-6 (20-300°C) |
| Electrical Conductivity (% IACS) | 15.50 % @ 68 F |
| Thermal Conductivity | 38.00 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.C51900, CDA519, ASTM B139, B103, B888, B159 |
|---|---|
| European Standards | CuSn6, JIS C5191, CW 452 K, PB 103 |
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 Vital technical data for this page.
What is the chemical composition of C51900?
C51900 is supplied to the following nominal composition:
- Sn: 5.50-7.00%
- 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 C51900?
Typical values published by Vital for C51900:
- Specific Gravity: 8.80 g/cm3
- Coefficient of Thermal Expansion per °C: 18.50 x 10-6 (20-300°C)
- Electrical Conductivity (% IACS): 15.50 % @ 68 F
- Thermal Conductivity: 38.00 Btu · ft/(hr · ft2·oF)at 68F
- Modulus of Elasticity in tension: 16000 ksi
Which international specifications does C51900 meet?
- Rods/Bars/Strips: UNS.C51900, CDA519, ASTM B139, B103, B888, B159
- European Standards: CuSn6, JIS C5191, CW 452 K, PB 103
Can you supply mechanical property data for C51900?
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 sales@vitalmaterialgroup.com. Unless otherwise specified, material is produced to ASTM.
Quote C51900 To Your Specification
Send grade, temper, dimensions and quantity. Custom shapes are available on request.