Copper Beryllium 70C, UNS C81400, M01 Temper, As Sand Cast

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Copper Beryllium 70C, UNS C81400, M01 Temper, As Sand Cast
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: As Sand Cast Casting Characteristics: High – Drossing, Gassing, Shrinkage in Solidification, Shrinkage During Freezing; Medium – Fluidity, Casting Yield; Low - Effect of Section Size Fabrication Properties: Excellent Suitability – Soldering; Good Suitability – Brazing; Fair Suitability –Gas Shielded Arc Welding, Coated Metal Arc Welding Typical uses: Electrical Parts; Higher Hardness Electrical Conductors; Higher Hardness Thermal Conductors Applicable Specifications: As Sand Cast – Castings ASTM B770; Ingot – ASTM B30
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Physical Properties	Original Value	Comments

Density	0.318 lb/in³

Mechanical Properties	Original Value	Comments
Tensile Strength	>= 45.0 ksi	for Standard
Elongation at Break	>= 15 %	for Standard
Tensile Modulus	16000 ksi
Modulus of Rigidity	5900 ksi
Poissons Ratio	0.36	Calculated
Machinability	20 %

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000290 ohm-cm	60% IACS

Thermal Properties	Original Value	Comments
CTE, linear	10.0 µin/in-°F @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.0930 BTU/lb-°F
Thermal Conductivity	150 BTU-in/hr-ft²-°F
Melting Point	1950 - 2000 °F
Solidus	1950 °F
Liquidus	2000 °F
Shrinkage	2.08 %	Patternmaker's Shrinkage (4/16 in./ft.)

Processing Properties	Original Value	Comments
Processing Temperature	500 °F	Stress Relief
Solution Temperature	1830 - 1850 °F @Time 30.0 sec	Water
Precipitation Temperature	900 °F	Air

Component Elements Properties	Original Value	Comments
Beryllium, Be	0.020 - 0.10 %
Chromium, Cr	0.60 - 1.0 %
Copper, Cu	98.9 - 99.4 %	As Balance

References for this datasheet.

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MC81400x1 / 293139

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