Materion Beryllium Copper Alloy 245C Castings (UNS C82600)

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Materion Beryllium Copper Alloy 245C Castings (UNS C82600) (discontinued **)
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy; Copper Casting Alloy
Material Notes:	Pouring Temperature: 970-1065°C Heat treatment required for max strength (Annealing): 760-790°C/water quench Heat treatment required for max strength (Hardening): 760-790°C/water quench Tabulated properties apply to products after age hardening. Information supplied by Brush Wellman. Brush Engineered Materials Inc. changed its name to Materion Corporation in March 2011.
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Physical Properties	Original Value	Comments

Density	8.22 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	40 - 45
Tensile Strength, Ultimate	1140 - 1250 MPa	Solution Annealed & Aged
Tensile Strength, Yield	1060 - 1170 MPa	Solution Annealed & Aged
Elongation at Break	1.0 - 2.0 %	Solution Annealed & Aged
Modulus of Elasticity	131 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000750 - 0.00000960 ohm-cm	18-23% IACS Conductivity

Thermal Properties	Original Value	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 200 °C
Thermal Conductivity	93.0 W/m-K
Melting Point	860 - 955 °C
Solidus	860 °C
Liquidus	955 °C

Component Elements Properties	Original Value	Comments
Beryllium, Be	2.25 - 2.55 %
Carbon, C	0.20 - 0.35 %
Cobalt, Co	0.35 - 0.65 %
Copper, Cu	97 %	as balance

**
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