Alloy 25 Rod & Bar TD04 (C17200) – Premium Strength Copper Alloy

Alloy 25 rod and bar from Materion Performance Alloys provide 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	Comment
Diameter	0.76 - 76 mm
Length	91000 mm	max.

Mechanical

Property	Temperature	Value
Elastic modulus	23.0 °C	131 GPa
Elongation	23.0 °C	8 - 30 %
Tensile strength	23.0 °C	590 - 900 MPa
Yield strength Rp0.2	23.0 °C	520 - 720 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 downhole drilling flex shafts, bushings and bearings, circular and coaxial connectors, test probes and compression contacts.

Alloy 25 High‑Strength Copper Rods & Bars – TB00 (C17200) High-Strength Alloy 25 Rods & Bars – Superior Conductivity & Durability (C17200)

Metal