Chromium Copper, UNS C18400, TD02 Temper, Tube

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Chromium Copper, UNS C18400, TD02 Temper, Tube
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: Solution Heat Treated and Cold Worked: 1/2 Hard Fabrication Properties: Excellent Suitability – Capacity for Being Cold Worked; Good Suitability – Soldering, Brazing, Gas Shielded Arc Welding, Capacity for Being Hot Formed; Fair Suitability – Butt Weld Common Fabrication Processes: Bending; Cold working; Drawing; Forging; Heading; Hot working; Impacting; Rolling; Swaging Typical uses: Arcing and Bridging Parts; Cable Connectors; Circuit Breaker Parts; Contacts; Current Carrying Arms and Shafts; Electric Motor Parts Electrical Conductors Requiring Greater Strength than Copper; Generator Components; Grid Side rods in Electron Tubes; Semi Conductor Bases; Switch Contacts; Switch Gears; Thermal Conductors Requiring Greater Strength than Copper; Wire, High Temperature; Electrode Holder Jaws; Flash Welding Electrodes; Molds; Resistance Welding Electrodes; Seam Welding Wheels; Spot Welding Tips; Stressed Parts Applicable Specifications: Bar – SAE J463, MILITARY MIL-C-19311, SAE J461; Forgings – SAE J461, SAE J463, MILITARY MIL-C-19311; Rod – SAE J461, MILITARY MIL-C-19311, SAE J463; Strip – MILITARY MIL-C-19311
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Physical Properties	Original Value	Comments

Density	0.321 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	84
Tensile Strength	69.0 ksi
Tensile Strength, Yield	63.0 ksi	0.5% Ext
Elongation at Break	26 %
Tensile Modulus	17000 ksi
Modulus of Rigidity	7200 ksi
Machinability	20 %
Forgeability	80 %

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000220 ohm-cm	80% IACS

Thermal Properties	Original Value	Comments
CTE, linear	9.80 µin/in-°F @Temperature 20.0 - 100 °C
Specific Heat Capacity	0.0920 BTU/lb-°F
Thermal Conductivity	187 BTU-in/hr-ft²-°F
Melting Point	1958 - 1967 °F
Solidus	1958 °F
Liquidus	1967 °F

Processing Properties	Original Value	Comments
Solution Temperature	1800 - 1850 °F @Time 30.0 sec	Air
Hot-Working Temperature	1500 - 1700 °F
Precipitation Temperature	860 °F	Air

Component Elements Properties	Original Value	Comments
Arsenic, As	<= 0.0050 %
Calcium, Ca	<= 0.0050 %
Chromium, Cr	0.40 - 1.2 %
Copper, Cu	97.7 - 99.6 %	As Balance
Iron, Fe	<= 0.15 %
Lithium, Li	<= 0.050 %
Phosphorus, P	<= 0.050 %
Silicon, Si	<= 0.10 %
Zinc, Zn	<= 0.70 %

Descriptive Properties
Cold Work (%)	76

References for this datasheet.

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MC18400x6 / 292855

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