BRUSH WELLMAN is a

Engineered Materials Company

beryllium, copper, alloy, rod, tube, Brush Wellman
Global Leader in Beryllium Materials and High Performance Alloys
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Brush Wellman’s BrushForm™ 65, a copper beryllium alloy
designed for use in the Automotive, Appliance and
DataCom/TeleCom markets, provides high strength,
excellent conductivity and superior formability.

Physical Properties
Elastic
Modulus 		Melting Point
(Liquidus) 		Melting Point
(Solidus) 		Electrical
Conductivity 		Density Thermal
Conductivity
20,000 ksi
137.8 GPa 		1975°F
1080°C 		1880°F
1030°C 		65% IACS Min.
26.5 n-ohm-m		 0.318 lb/in3
8.81 g/cm3 		156 BTU/hr. ft F
270 W/mK
 
Mechanical Properties
Temper 0.2% Offset
Yield Strength
(nominal) 		Ultimate Tensile
Strength
(nominal) 		Elongation
(nominal) 		90° Bend
Formability 		Fatigue Strength
@107 Cycles
(fully reverse bending,
R=-1)
HT (TH04) (ksi) (N/mm2) (ksi) (N/mm2) (%) GW* BW* (ksi) (N/mm2)
100-115 690-793 110-125 758-862 5 1.5 R/t 1.5 R/t 45 310
*Gages for less than 0.005” (0.13mm)
 
Chemical Composition
UNS C17460 Weight Percent
Beryllium (Be) 0.15-0.5
Zirconium (Zr) 0.5 (max)
Nickel (Ni) 1.0-1.4
Tin (Sn) 0.25 (max)
Copper (Cu) Balance