Beryllium Copper, UNS C17000, Cast and Aged Billet

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Beryllium Copper, UNS C17000, Cast and Aged Billet
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Good to excellent corrosion resistance. Excellent cold workability; good hot formability. Commonly fabricated by blanking, forming and bending, turning, drilling, tapping. Applications: bellows, bourdon tubing, diaphragms, fuse clips, fasteners, lock-washers, springs, switch parts, roll pins, valves, welding equipment. Cast and aged 3 hours at 350°C billet.
Key Words:	BeCu; 165 Alloy
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Physical Properties	Original Value	Comments

Density	8.26 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	>= 18
Tensile Strength, Ultimate	655 - 690 MPa
Tensile Strength, Yield	485 - 515 MPa @Strain 0.2 %
Elongation at Break	10 - 25 %	in 50 mm
Modulus of Elasticity	115 GPa
Poissons Ratio	0.30
Machinability	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	50.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000075 - 0.0000096 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	16.7 µm/m-°C @Temperature 20.0 - 100 °C
	17.0 µm/m-°C @Temperature 20.0 - 200 °C
	17.8 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.420 J/g-°C
Thermal Conductivity	118 W/m-K
	145 W/m-K @Temperature 200 °C
Melting Point	865 - 980 °C
Solidus	865 °C
Liquidus	980 °C

Processing Properties	Original Value	Comments
Processing Temperature	845 °C	Hot-Shortness Temperature
Annealing Temperature	775 - 800 °C
Solution Temperature	760 - 790 °C
Aging Temperature	260 - 425 °C
Hot-Working Temperature	650 - 825 °C
Recrystallization Temperature	730 °C

Component Elements Properties	Original Value	Comments
Beryllium, Be	1.6 - 1.79 %
Co + Ni	>= 0.20 %
Co + Ni + Fe	<= 0.60 %
Copper, Cu	98.1 %

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MC17000d7 / 10744

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