Nickel Aluminum Bronze UNS C63200

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat Treatment
     Annealing
     Cold Working
     Welding
     Forging
     Machinability
     Hot Working
Applications

Introduction

Aluminum bronze alloys are copper alloys containing 5-12% aluminum. Some copper alloys also contain manganese, nickel, silicon and iron. The aluminum bronze alloys have a protective, adherent and hard alumina film that improves the corrosion resistance of these alloys. Aluminum bronze alloys are golden in color and available in both wrought and cast forms.

UNS C63200 nickel aluminum bronze alloy has moderate strength and corrosion resistance. The following datasheet provides an overview of UNS C63200 alloy.

Chemical Composition

The chemical composition of UNS C63200 nickel aluminum bronze alloy is outlined in the following table.

Element Content (%)
Cu 82
Fe 4
Al 9
Ni 5

Physical Properties

The following table shows the physical properties of UNS C63200 nickel aluminum bronze alloy.

Properties Metric Imperial
Density 7.64 g/cm³ 0.276 lb/in³
Melting point 1046°C 1905°F

Mechanical Properties

The mechanical properties of UNS C63200 nickel aluminum bronze alloy are displayed in the following table.

Properties Metric Imperial
Hardness, Rockwell B 92.0-97.0 92.0-97.0
Tensile strength, (depending on amount of cold work or heat treatment) 640-725 MPa 92800-105000 psi
Yield strength (depending on amount of cold work or heat treatment) 330-380 MPa 47900-55100 psi
Elongation at break (in 50 mm, 18% reduction in area) 18% 18%
Compressive strength 760 MPa 110000 psi
Charpy impact (V-notch) (@ -29-20°C/-20.2-68°F) 23.0-27.0 J 17.0-19.9 ft-lb
Izod Impact (@ -29-20°C/-20.2-68°F) 13.0-16.0 J 9.59-11.8 ft-lb
Machinability (based on 100 machinability for UNS C360000) 30 30
Shear modulus 44 GPa 6380 ksi
Poisson's ratio 0.34 0.34
Elastic modulus 117 GPa 16969 ksi

Thermal Properties

The thermal properties of UNS C63200 nickel aluminum bronze alloy are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@20-300°C/68-572°F) 16.2 µm/m°C 9.00 µin/in°F
Thermal conductivity (@20°C/68°F) 36 W/mK 250 BTU in/hr.ft².°F

Other Designations

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Equivalent materials to UNS C63200 alloy are:

  • ASTM B124
  • ASTM B150
  • ASTM B283

Fabrication and Heat Treatment

Annealing

UNS C63200 alloy can be annealed between 621 and 704°C (1150 and 1300°F).

Cold Working

UNS C63200 alloy has fair cold working capacity.

Welding

Welding processes suitable for UNS C63200 alloy include brazing, coated metal arc welding, seam welding, soldering, butt welding, spot welding and gas shielded arc welding. Oxyacetylene welding is not recommended for this alloy.

Forging

UNS C63200 alloy can be hot worked between 816 and 899°C (1500 and 1650°F). The hot forgeability rating of this alloy is 70.

Machinability

The machinability rating of UNS C63200 alloy is 30.

Hot Working

UNS C63200 alloy has good hot forming capacity.

Applications

UNS C63200 alloy is used for pole line hardware, high strength fasteners, marine equipment and components such as pumps and valves utilized in industries.

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