ThePipingMart Blog Grades Copper Casting Alloy (UNS C90800) – Composition, Properties and Uses

Copper Casting Alloy (UNS C90800) – Composition, Properties and Uses

Copper Casting Alloy UNS C90800

Copper casting alloy UNS C90800 is a copper-based alloy used in casting castings. It has excellent mechanical and physical properties, making it an ideal choice for many applications. In this blog post, we’ll look at the composition, mechanical properties, and physical properties of copper casting alloy UNS C90800 and its common uses.

UNS C90800 Composition

Copper casting alloy UNS C90800 is composed primarily of copper (91.5%), with smaller amounts of tin (4.0%), zinc (2.0%), lead (1.3%), and nickel (0.7%). This composition gives it excellent strength and corrosion resistance in high and low temperatures.

Element Content (%)
Copper, Cu 87
Tin, Sn 12
Phosphorus, P 0.2

UNS C90800 Mechanical Properties

Copper casting alloy UNS C90800 has excellent mechanical properties, high tensile strength, good fatigue resistance, and good wear resistance. It also has excellent machinability and can be easily formed into complex shapes or thin walls without any difficulty.

Mechanical Properties Metric Imperial
Hardness, Brinell (500kg) 95 95
Tensile strength, ultimate ≥ 345 MPa ≥ 50000 psi
Tensile strength, yield ≥ 145 MPa ≥ 21000 psi
Elongation at break ≥ 12.0 % ≥ 12.0 %
Poisson’s ratio 0.34 0.34
Elastic modulus 117 GPa 16969.4 ksi

UNS C90800 Physical Properties

In addition to its excellent mechanical properties, copper casting alloy UNS C90800 has outstanding physical properties such as high thermal conductivity and low electrical resistivity. These characteristics make it an ideal material for applications that require efficient heat transfer or low electrical power consumption.

Properties Metric Imperial
Density 8.67 g/cc 0.313 lb/in³

UNS C90800 Equivalent

  • ASTM B30
  • ASTM B427

UNS C90800 Uses

The copper alloy UNS C90800 has many uses within the casting and manufacturing industries. Characterized by high strength and excellent corrosion resistance, it is commonly used in producing pipes, valves, fittings, pump components, and nozzles. The easy machinability makes it suitable for industrial applications that require precision, while its ductility allows it to be formed into intricate shapes. Additionally, due to its superior conductivity, UNS C90800 is frequently chosen for manufacturing electrical equipment parts. Whatever your application, whether it’s valve bodies or custom parts for the marine industry, UNS C90800 copper alloy is a wise choice.


Copper casting alloy UNS G09800 is an incredibly versatile material that can be used in various industries due to its excellent mechanical and physical properties. Its composition makes it highly resistant to corrosion while providing superior thermal conductivity and electrical resistivity compared to other metals or alloys. If you’re looking for a reliable material for your next project or application, consider using copper-casting alloy UNS G09800!

Related Post