Special Brass Instruments

CuNiSiCr

Copper Alloys

EN CW111C - UNS C18000

CuNiSiCr is a high-strength copper alloy that combines excellent electrical and thermal conductivity with good wear and fatigue resistance. It also exhibits good high-temperature performance due to the structural hardening achieved through heat treatment. This alloy is particularly useful when a balance between conductivity and mechanical performance is required.

Properties

Machinability
Electrical Conductivity
Corrosion and Wear Resistance

Development

Hot-extruded
Cold-drawn
Forged

States

R550 / H150
R640 / H180

Applications

Thermal Conductivity
Electrical Components and Connectors
Precision Mechanical Parts

Chemical Composition

ElementCu (%)Neither (%)Yes (%)Other (%)
ContentsRemaining1.6–2.50.4–0.8≤0.62

Mechanical Properties

Hardness (HB)≥190
Rm (MPa)≥550
0.2 Rp (MPa)≥450
A%≥10
% IACS17–35
Density (g/cm³)8.9

Available Sizes

Round

Flat side

Hexagonal

Custom-made

Standards

EN 12163

Certificate 3.1 available

Upon request when ordering

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