CuAl3Si1 — C63600
CuAl3Si1 – UNS.C63600 Aluminum Bronze Alloys, Nominally composed of 95.50% copper and 3.5% aluminum as well as 1.0% silicon, including 1% silicon
CuAl3Si1 — C63600
CuAl3Si1 – UNS.C63600 Aluminum Bronze Alloys, Nominally composed of 95.50% copper and 3.5% aluminum as well as 1.0% silicon, including 1% silicon, which will be more helpful for increasing its hardness, high strength.

Where C63600 Is Used
Typical end uses published by Vital for this grade.
Electrical
Cold Headed Nuts, Cable Connectors, Components for Pole Line Hardware
Fasteners
Screw Machine Products, Bolts
Industrial
Valve Components, Nuclear Power Service
Specifications And Material Data
| Al | 3.00-4.00% |
|---|---|
| Si | 0.70-1.30% |
| Fe | 0.15% Max. |
| Ni | 0.15% Max. |
| Sn | 0.20% Max. |
| Zn | 0.50% Max. |
| Pb | 0.05% Max. |
| Cu | Balance |
Copper plus additions equal 99.50% minimum.
| Specific Gravity | 8.35 g/cm3 |
|---|---|
| Coefficient of Thermal Expansion per °C | 16.90 x 10-6 (20-100°C) |
| Electrical Conductivity (% IACS) | 12 % @ 68 F |
| Thermal Conductivity | 33.0 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, Rectangular bars, Hexagon bars
Custom shapes are available upon request.
International Specification
| Rods/Bars | UNS.C63600, CDA636 |
|---|---|
| European Standards | CuAl3Si1 |
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 C63600?
C63600 is supplied to the following nominal composition:
- Al: 3.00-4.00%
- Si: 0.70-1.30%
- Fe: 0.15% Max.
- Ni: 0.15% Max.
- Sn: 0.20% Max.
- Zn: 0.50% Max.
- Pb: 0.05% Max.
- Cu: Balance
What are the typical physical properties of C63600?
Typical values published by Vital for C63600:
- Specific Gravity: 8.35 g/cm3
- Coefficient of Thermal Expansion per °C: 16.90 x 10-6 (20-100°C)
- Electrical Conductivity (% IACS): 12 % @ 68 F
- Thermal Conductivity: 33.0 Btu · ft/(hr · ft2·oF)at 68F
- Modulus of Elasticity in tension: 16000 ksi
Which international specifications does C63600 meet?
- Rods/Bars: UNS.C63600, CDA636
- European Standards: CuAl3Si1
Can you supply mechanical property data for C63600?
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, Rectangular bars, Hexagon bars 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 C63600 To Your Specification
Send grade, temper, dimensions and quantity. Custom shapes are available on request.







