Materion Copper Beryllium Alloy 165 Cold Rolled (Heat Treatable) Strip AT (TF00) (UNS C72900)

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Materion Copper Beryllium Alloy 165 Cold Rolled (Heat Treatable) Strip AT (TF00) (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	Metric	English	Comments

Density	8.41 g/cc	0.304 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	325 - 373	325 - 373	DPH Hardness
Tensile Strength, Ultimate	1030 - 1240 MPa	150000 - 180000 psi
Tensile Strength, Yield	896 - 1140 MPa @Strain 0.200 %	130000 - 165000 psi @Strain 0.200 %
Elongation at Break	3.00 - 20.0 %	3.00 - 20.0 %
Modulus of Elasticity	131 GPa	19000 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000610 - 0.00000780 ohm-cm	0.00000610 - 0.00000780 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	17.5 µm/m-°C	9.70 µin/in-°F
Thermal Conductivity	105 W/m-K	729 BTU-in/hr-ft²-°F
Melting Point	870 °C	1600 °F

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

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NBB442ue / 323464

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