Bronze

CuSn4Zn4Pb4

Bronze alloy

EN CW456K - UNS C54400

CuSn4Zn4Pb4 is a bronze alloy containing lead and zinc, designed for friction applications. It offers good machinability due to the presence of lead and effective anti-friction properties for bearings and bushings. This alloy is primarily used in cast and machined parts where wear resistance and ease of machining are important.

Properties

Machinability
Corrosion Resistance
Weldability

Development

Hot-extruded
Cold-drawn

States

R450 to R640

Applications

Mechanical Components
Bearings and friction rings
Connectors

Chemical Composition

ElementSn (%)Zn (%)Pb (%)P (%)Fe (%)Cu (%)Other (%)
Contents3.0–4.53.0–4.53.0–4.5≤ 0,2≤0.1Remaining≤0.3

Mechanical Properties

Hardness (HB)115–210
Rm (MPa)450–720
0.2 Rp (MPa)350–620
A%3–10
Density (g/cm³)8.9

Available Sizes

Round

Custom-made

Standards

EN 12164

Certificate 3.1 available

Upon request when ordering

* These values are for reference only; they may vary depending on the standard and condition.