Beryllium Copper, UNS C17300, TH04 Temper, Wire

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Beryllium Copper, UNS C17300, TH04 Temper, Wire
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: Hard and Precipitation Heat Treated Fabrication Properties: Excellent Suitability – Capacity for Being Hot Formed; Good Suitability – Soldering, Brazing, Gas Shielded Arc Welding, Coated Metal Arc Welding, Spot Weld, Capacity for Being Cold Worked; Fair Suitability – Seam Weld, Butt Weld Common Fabrication Processes: Blanking; Drawing; Drilling; Forming and Bending; Tapping; Turning Typical uses: Clips; Connectors; Contact Bridges; Electric Motor Components; Electrical Connectors; Electrical Switch and Relay Blades; Fuse Clips; Navigational Instruments; Relay Parts; Switch Parts; Bolts; Fasteners; Lock Washers; Roll Pins; Screws; Washers; Bellows; Bourdon Tubes; Bushings; Diaphragms; Electrochemical Springs; Flexible Metal Hose; Non Sparking Safety Tools; Pump Parts; Pumps; Rolling Mill Parts; Shafts; Spline Shafts; Springs; Springs, Valve; Welding Equipment; Firing Pins Applicable Specifications: Bar – MILITARY MIL-C-21657, ASTM B196/B196M; Rod – ASTM B196/B196M, MILITARY MIL-C-21657; Wire – ASTM B197/B197M
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Physical Properties	Metric	English	Comments

Density	8.25 g/cc	0.298 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength	1460 MPa	212000 psi
Tensile Strength, Yield	1340 MPa	195000 psi	0.2% Offset
Elongation at Break	1.0 %	1.0 %
Tensile Modulus	128 GPa	18500 ksi
Modulus of Rigidity	50.3 GPa	7300 ksi
Poissons Ratio	0.27	0.27	Calculated
Machinability	50 %	50 %
Forgeability	0.00 %	0.00 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000780 ohm-cm	0.00000780 ohm-cm	22% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	17.8 µm/m-°C @Temperature 20.0 - 300 °C	9.90 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.418 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	8.93 W/m-K	62.0 BTU-in/hr-ft²-°F
Melting Point	866 - 982 °C	1590 - 1800 °F
Solidus	866 °C	1590 °F
Liquidus	982 °C	1800 °F

Processing Properties	Metric	English	Comments
Processing Temperature	>= 204 °C	>= 400 °F	Stress Relief
Solution Temperature	773.9 - 801.7 °C @Time 30.0 sec	1425 - 1475 °F @Time 0.00833 hour	Water
Hot-Working Temperature	649 - 816 °C	1200 - 1500 °F
Precipitation Temperature	316 °C	600 °F	Air

Component Elements Properties	Metric	English	Comments
Aluminum, Al	<= 0.20 %	<= 0.20 %
Beryllium, Be	1.8 - 2.0 %	1.8 - 2.0 %
Cobalt, Co	>= 0.20 %	>= 0.20 %
Copper, Cu	97 - 97.8 %	97 - 97.8 %	As Balance
Lead, Pb	0.20 - 0.60 %	0.20 - 0.60 %
Silicon, Si	<= 0.20 %	<= 0.20 %

References for this datasheet.

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MC17300x4 / 292834

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