High-Strength Alloy 25 Plate (C17200) – Superior Conductivity & Durability

Alloy 25 from Materion Performance Alloys provides the highest strength of any copper alloy, with electrical and thermal conductivity considerably greater than other high strength copper alloys. This alloy features high fatigue strength and resistance to wear, corrosion, galling, and stress relaxation.

Properties

General

Property	Temperature	Value
Density	23.0 °C	8.36 g/cm³

Dimension

Property	Value
Length	610 - 3200 mm
Thickness	12.7 - 203.2 mm
Width	305 - 559 mm

Mechanical

Property	Temperature	Value
Elastic modulus	23.0 °C	131 GPa
Elongation	23.0 °C	3 - 10 %
Tensile strength	23.0 °C	1140 - 1380 MPa
Yield strength Rp0.2	23.0 °C	970 - 1200 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	23.0 °C	1.75E-5 1/K
Melting point		870 °C
Thermal conductivity	23.0 °C	105 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	23.0 °C	5.8E-6 - 6.9E-6 Ω·m
Specific Electrical conductivity		25 - 30 % IACS

Chemical properties

Property	Value	Comment
Beryllium	1.8 - 2 %
Cobalt	0.2 %	min. Nickel + Cobalt
Copper	Balance
Iron	0.6 %	max., Nickel + Cobalt + Iron
Nickel	0.2 %	min. Nickel + Cobalt

Technological properties

Property
Application areas	Typical applications include wear plates and other galling resistant components.

Alloy 25 Plate TD04 – Premium High‑Strength Copper Alloy (C17200) Alloy 25 Plate TH04 (C17200): High-Strength, High-Performance Copper Alloy

Metal