Copper Alloys

Cast Copper Alloy Products

Copper and copper alloys are some of the most versatile engineering materials available. The combination of physical properties such as strength, conductivity, corrosion resistance, machinability and ductility make Copper suitable for a huge range of applications. With their properties being further enhanced by variations in composition and manufacturing methods.

There are pushing 400 commercial compositions for Copper alloys. The most often in use at Archibald Young tend to be in the Bronze classifications (Aluminium, Phosphor and Gunmetals) although Brass and CuproNickel alloys are not uncommon either.

Copper and Copper alloys can be used in an extraordinary range of our customer applications including:

  • Architectural applications
  • Electrical cabling
  • Pump and valve applications
  • Marine engineering parts
  • Heat exchangers
  • Fasteners
  • Bearings
Bronze Melt

In addition, there are so many more applications.

Copper alloys are highly suited to recycling with around 40% of the annual consumption of Copper alloys being derived from recycled Copper materials. The vast majority of Copper based alloy ingot material going through our production here is derived from secondary smelting of recycled materials.

Copper is a tough, ductile and malleable material which makes copper extremely suitable for sand casting into a variety of shapes and forms to suit our customer applications. In most marine and industrial atmospheres Copper alloys are resistant to corrosion with Copper itself being resistant to saline solutions, soils, non-oxidising minerals, organic acids and caustic solutions. The corrosion resistance of Copper alloys comes from the formation of adherent films on the material surface. These films are relatively impervious to corrosion therefore protecting the base metal from further attack. Copper Nickel alloys, Brass and Aluminium Bronzes demonstrate even greater resistance to saltwater corrosion.

Most Copper alloys will develop a blue-green patina (Verdigris) when exposed to the elements with some alloys further darkening after prolonged exposure to take on a brown to black colour. In our artistic and architectural castings these patinas can be artificially replicated to give an aged appearance to a new product.

If you have such a project please contact us to discuss, enquiries@archibaldyoung.co.uk.

Description BS1400 standard BS EN ISO International USA USA – ASTM Germany – DIN
Leaded bronze LB2 CC495K CuPb15Sn7 B584 1716
Leaded gunmetal LG2 CC491K CuPb5Sn5Zn5 C83600 B62 1705
Sand cast brass SCB6 CC705S CuZn33Pb2 B146 1709
HC Copper HCC1 CC040C Cu B824 17655
Phosphor bronze PB1 CC481K CuSn10PbP B22 1705
Tin copper CT1 CC480K CuSn10 C90700 B505 1705
Leaded gunmetal LG4 CC492K CuPb5Sn5Zn5  C92200 B61 / B584 1705
Aluminium bronze AB2 CC333G CuAl10Fe5Ni5 C95800 B148 1714
High tensile brass HTB3 CC762S CuZn25Al5Mn4Fe3 B147 1709