Bronze

CuSn5Pb20

Bronze alloy

EN CC497K - UNS C94300

CuSn5Pb20 is a high-alloy lead bronze. It is characterized by excellent anti-friction properties, very good particle absorption capacity, and good performance under boundary or degraded lubrication conditions. Its mechanical strength is lower than that of lead-free bronzes, but it offers good machinability.

Properties

Machinability
Corrosion Resistance
Self-lubricating properties

Development

Continuous casting

States

BIOLOGY STANDARD

Applications

Friction rings
Components for machines operating under difficult lubrication conditions
Bushings and plain bearings

Chemical Composition

ElementSn (%)Zn (%)Pb (%)P (%)Fe (%)Cu (%)Neither (%)Sb (%)S (%)Mn (%)Other (%)
Contents4.6–6.0≤2.018.0–23.0≤0.1≤0.2570.0–78.00.5–2.5≤ 0,75 ≤0.100.2≤0.2

Mechanical Properties

Hardness (HB)≥50
Rm (MPa)≥180
0.2 Rp (MPa)≥90
A%≥7

Available Sizes

Custom-made

Standards

IN 1982
ASTM B505

Certificate 3.1 available

Upon request when ordering

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