Materion Copper Beryllium Alloy 165 Cold Rolled (Heat Treatable) Strip HT (TH04) (UNS C72900)

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Materion Copper Beryllium Alloy 165 Cold Rolled (Heat Treatable) Strip HT (TH04) (UNS C72900)
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes:	Alloy 165 strip provides strength and conductivity close to Alloy 25 strip, with slightly less beryllium. Since it is heat treated after forming, it provides excellent formability and ductility. This alloy features good stress relaxation resistance and high fatigue strength. Typical applications include pressure sensor bellows, burn-in and test socket contacts, computer processor socket contacts, and electromagnetic shielding gaskets. Information provided by Materion.
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Physical Properties	Original Value	Comments

Density	0.304 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Vickers	372 - 435	DPH Hardness
Tensile Strength, Ultimate	180 - 210 ksi
Tensile Strength, Yield	15.0 - 180 ksi @Strain 0.200 %
Elongation at Break	1.00 - 6.00 %
Modulus of Elasticity	19000 ksi

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000610 - 0.00000780 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	9.70 µin/in-°F
Thermal Conductivity	105 W/m-K
Melting Point	870 °C

Component Elements Properties	Original Value	Comments
Beryllium, Be	1.60 - 1.85 %
Co + Ni	>= 0.200 %
Co + Ni + Fe	<= 0.600 %
Copper, Cu	97.55 - 98.2 %

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