Copper (UNS C46200)

Topics Covered

Chemical Composition
Physical Properties
Other Designations


There are about 400 types of copper alloys. Tin brasses are one such copper alloy category. Tin brasses comprise three distinct varieties, namely, admiralty brasses, naval brasses and free machining tin brasses.

UNS C46200 is a brass alloy of copper comprising chiefly of zinc and tin. It is also known as naval brass. This alloy has excellent hot forgeability, good strength, good corrosion resistance, fair electrical conductivity, and a higher dezincification resistance than UNS C46400 alloy.

The microstructure of the tin brasses is based on the zinc and tin content of the alloy. The following datasheet discusses the chemical composition and properties of copper UNS C46200.

Chemical Composition

The chemical composition of copper UNS C46200 is given in the following table.

Element Content (%)
Copper, Cu 62 - 65
Tin, Sn 0.5 - 1
Lead, Pb 0.2 max
Iron, Fe 0.1 max
Zinc, Zn Balance

Physical Properties

The following table discusses the physical properties of copper UNS C46200.

Properties Metric Imperial
Density 8.4 g/cm3 0.305 lb/in3

Other Designations

Other designations that are equivalent to copper UNS C46200 include:

  • ASTM B21
  • ASTM F467
  • ASTM F468
  • ASTM F68
  • QQ B639


Copper UNS C46200 brass alloy is used in the following applications:

  • Decorative and architectural products and marine hardware due to its colorful appearance
  • Fasteners and hardware for corrosion resistant service
  • Marine applications
  • High strength cold headed products
  • Forged, rolled, and stamped products for use in electrical, mechanical or corrosion resistant applications

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