Bronze

CuSn7Pb15

Bronze alloy

EN CC491K - UNS C89833

CuSn7Pb15 is a copper alloy belonging to the lead-bronze family, characterized by excellent machinability and good sliding properties. Its high-lead composition gives it a low coefficient of friction as well as good wear resistance, even under conditions of limited lubrication.

Properties

Machinability
Wear resistance
Corrosion Resistance

Development

Continuous casting

States

Applications

Bearings and Bushings
Friction rings
Machined Parts with High Machinability

Chemical Composition

ElementSn (%)Zn (%)Pb (%)P (%)Neither (%)Fe (%)Cu (%)Other (%)
Contents6–8≤0.213–17≤0.10.5–2.0≤0.2574.0–80.0≤ 0,82

Mechanical Properties

Hardness (HB)≥70
Rm (MPa)≥260
0.2 Rp (MPa)≥120
A%≥12
Density (g/cm³)8.8

Available Sizes

Round

Tube

Flat side

Hexagonal

Custom-made

Standards

IN 1982

Certificate 3.1 available

Upon request when ordering

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