Beryllium-Copper Alloy 30C, UNS C82200, Cast and Aged

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Beryllium-Copper Alloy 30C, UNS C82200, Cast and Aged
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Continuous, Investment, Permanent Mold, Plaster, and Sand. Applications: Clutch rings, brake drums, seam welder electrodes, projection welding dies, spot welding tips, beam welder shapes, bushings, water-cooled holder. Test specimen: cast and aged 3 hours at 480°C.
Key Words:	BeCu; beryllium copper alloy 30C, 35C, 53B, CA 822, RWMA Class III
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Physical Properties	Original Value	Comments

Density	8.75 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	75
Tensile Strength, Ultimate	450 MPa
Tensile Strength, Yield	275 MPa @Strain 0.2 %
Elongation at Break	15 %	In 50 mm
Modulus of Elasticity	114 GPa
Poissons Ratio	0.33
Shear Modulus	43.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000359 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	16.2 µm/m-°C @Temperature 20.0 - 200 °C
Specific Heat Capacity	0.420 J/g-°C
Thermal Conductivity	183 W/m-K @Temperature 20.0 °C
Melting Point	1035 - 1115 °C
Solidus	1040 °C
Liquidus	1115 °C
Shrinkage	1.56 %	Patternmaker's Shrinkage (3/16 in./ft.)

Processing Properties	Original Value	Comments
Solution Temperature	900 - 955 °C
Aging Temperature	445 - 455 °C
Casting Temperature	1150 - 1200 °C	Heavy castings
	1200 - 1260 °C	Light castings

Component Elements Properties	Original Value	Comments
Aluminum, Al	<= 0.10 %
Beryllium, Be	0.35 - 0.80 %
Chromium, Cr	<= 0.10 %
Cobalt, Co	<= 0.20 %
Copper, Cu	>= 96.5 %
Iron, Fe	<= 0.10 %
Lead, Pb	<= 0.020 %
Nickel, Ni	1.0 - 2.0 %
Silicon, Si	<= 0.15 %
Tin, Sn	<= 0.10 %
Zinc, Zn	<= 0.10 %

References for this datasheet.

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MC82200b3 / 11874

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