Chemical composition (%) DIN EN 12167
CuZn43Pb1Al is copper-zinc-lead alloy with a duplex α- and β-phase structure containing a dispersion of fine lead particles, and Aluminum to tarnish resistance of the alloy and is highly suitable for hot formed parts. It is a very good alloy for use in profiles which provide complex shapes or very thin walls, Handrails, Decorative Profiles, Standard Angles, Standard T sections, Standard Channels, Trim & Flooring Profiles and Ironmongery Profies.
Due to the alloying of Al CuZn43Pb1Al has a golden yellow colour. Common name is Architectural “Bronze” also know as Architectural Brass
This group of alloys is used for production of profiles by hot extrusion. Aluminium imparts a golden lustre, avoiding need for further polishing. The alloys with more than 1.6% Pb have very good machinability.
Generally supplied as extruded / as manufactured.
At room temperature
28 % I.A.C.S
Coefficient of thermal expansion
Hot working temperature
Resistance welding butt