Materion Brushform® 290 Beryllium Copper Alloy Strip; TM02 Temper (UNS C17200)

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Materion Brushform® 290 Beryllium Copper Alloy Strip; TM02 Temper (UNS C17200)
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes:	Treatment required for max strength: Mill Hardened Stress Relaxation-% Stress Remaining after 1000 hrs @ 100°C: 97% Stress Relaxation after 1000 hrs @ 200°C: 76% Formability Ratio, 90° Bend, Radius/Thickness (Good Way): 0 Formability Ratio (bad Way): 0 Superficial Hardness: 30N 46-54 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.
Key Words:	ASTM B-194
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Physical Properties	Original Value	Comments

Density	8.36 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	25 - 34
Hardness, Vickers	255 - 339
Tensile Strength, Ultimate	>= 820 MPa
Tensile Strength, Yield	650 - 800 MPa
Elongation at Break	14 - 30 %
Modulus of Elasticity	131 GPa
Fatigue Strength	290 - 330 MPa @# of Cycles 1.00e+8	Reverse Bending (R=1)

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000660 - 0.0000101 ohm-cm	17-26% IACS Conductivity

Thermal Properties	Original Value	Comments
CTE, linear	17.0 µm/m-°C @Temperature 20.0 - 200 °C
Thermal Conductivity	105 W/m-K
Melting Point	870 - 980 °C
Solidus	870 °C
Liquidus	980 °C

Component Elements Properties	Original Value	Comments
Beryllium, Be	1.8 - 2.0 %
Co + Ni	>= 0.20 %
Co + Ni + Fe	<= 0.60 %
Copper, Cu	98 %	as balance
Lead, Pb	<= 0.020 %

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