Copper Alloys Copper Nickel Silicon Alloy C64750

Product Data Sheet – Copper Alloys

Copper Nickel Silicon Alloy  UNS-C64750

Chemical Composition

% Maximum, unless shown as range or minimum

CopperIronMagnesiumNickelPhosphorusSiliconTinZincZirconium
Min/Max
Remainder
1.0
0.10
1.0-3.0
0.10
0.10-0.7
0.05-0.8
1.0
0.10
Nominal
–
–
–
2.0
–
0.40
0.42
–
–

(1) Copper value includes Silver
(2) Nickel value includes Cobalt
Note: Copper + Sum of named elements, 99.92% minimum

Applicable Specifications

Not Currently included in ASTM specifications

Fabrication Properties

Fabricating Technique
Suitability
Cold Working Capacity
Excellent
Hot Working Capacity
Excellent
Joining Technique
Suitability
Soldering
Excellent
Brazing
Excellent
Oxyacetylene Welding
Good
Gas Shielded Arc Welding
Good
Coated Metal Arc Welding
Good
Spot Weld
Excellent
Seam Weld
Excellent
Butt Weld
Excellent

Mechanical Properties

Annealed Condition – Room Temperature 20°C

Temper
Temp
Tensile Strength
Elongation
Shear Strength
°C
MPa
%
MPa
TF00
10
614
–
–
TF
20
637
7
265

Physical Properties

Property
Metric Units
Density
8.91 g/cm³ @ 20°C
Specific Gravity
8.91
Melting Point (Liquidus)
1078°C
Melting Point (Solidus)
1055°C
Electrical Resistivity
3.7 microhm-cm @ 20°C
Electrical Conductivity
0.261 MegaSiemens/cm@ 20°C
Specific Heat
377 J/kg . °K @ 293°K
Mean Coefficient of Expansion
16.38 x 10-6 / °C (20-100°C)
Modulus of Elasticity (Tension)
135,000 MPa
Magnetic Permeability
1.0
The technical advice and recommendations made in this Product Data Sheet should not be relied or acted upon without conducting your own further investigations, including corrosion exposure tests where needed. Please consult current editions of standards for design properties. Austral Wright Metals assumes no liability in connection with the information in this Product Data Sheet. Austral Wright Metals supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and other high performance metals for challenging service conditions. Our engineers and metallurgists will be pleased to provide further data and applications advice.
MENU