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Elmet Technologies

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Beryllium Copper, UNS C17000, TH04 Temper rod, bar, plate tubing, 10-25 mm
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.

TH04 temper rod, bar, plate, or tubing; 10-25 mm; aged 2-3 hours at 330°C.

Key Words: BeCu; 165 Alloy
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Physical PropertiesOriginal ValueComments
Density 8.26 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell C >= 35
Tensile Strength, Ultimate 1170 - 1345 MPa
Tensile Strength, Yield 930 - 1140 MPa
@Strain 0.2 %
Elongation at Break 2.0 - 5.0 %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 PropertiesOriginal ValueComments
Electrical Resistivity 0.0000069 - 0.0000078 ohm-cm
@Temperature 20.0 °C
 
Thermal PropertiesOriginal ValueComments
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 PropertiesOriginal ValueComments
Processing Temperature 845 °CHot-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 PropertiesOriginal ValueComments
Beryllium, Be 1.6 - 1.79 %
Co + Ni >= 0.20 %
Co + Ni + Fe <= 0.60 %
Copper, Cu 98.1 %

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