C63000 Material Data Sheet

Chemical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640

Element

Nominal %

Minimum %

Maximum %

Aluminum

10

9

11

Antimony

-

-

-

Copper

82

Rem

Rem

Iron

3

2

4

Manganese

-

-

1.5

Nickel

5

4

5.5

Silicon

-

-

0.25

Sulfur

-

-

-

Tin

-

-

0.2

Zinc

-

-

0.3

 

Mechanical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640

Typical 1" Rod Half-Hard

 

Tensile Strength:

Minimum 118 ksi

Yield Strength:

Minimum 75 ksi - 0.5% Ext. under load

Elongation:

Minimum 15% in 2 in.

Rockwell B

98

 

Physical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640

Property

US Customary

Melting Point - Liquidus

1930 F

Melting Point - Solidus

1895 F

Density

0.274 lb/cu in @ 68 F

Specific Gravity

7.58

Specific Heat Capacity

0.09 Btu/lb/oF at 68 F

Coefficient of Thermal Expansion

9.0 ·10-6 per oF (68-212 F)

Thermal Conductivity

22.6 Btu · ft/(hr · ft2·oF)at 68F

Electrical Conductivity

7 %IACS @ 68 F

Electrical Resistivity

116 ohms-cmil/ft @ 68 F

Modulas of Elasticity in Tension

17,500 ksi

 

Fabrication Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640

Joining Methods

Suitability

Soldering

Not Recommended

Brazing

Fair

Oxyacetylene Welding

Not Recommended

Gas Shielded Arc Welding

Good

Coated Metal Arc Welding

Good

Machinability (C360 Brass =100)

30