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Materion ToughMet® 3AT, Copper-Nickel-Tin Alloy Tube AT90, 1.625 to 3.9 in
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: ToughMet 3 AT alloy is a wrought, spinodally hardened copper alloy engineered for high strength and hardness. It resists mechanical wear, galling, stress relaxation, corrosion and erosion. ToughMet 3 alloy retains its strength at elevated temperature. It is non-magnetic and easy to machine into complex components.

Information provided by Materion.

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Physical PropertiesMetricEnglishComments
Density 9.00 g/cc0.325 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 22.022.0
Tensile Strength, Ultimate 758 MPa110000 psi
Tensile Strength, Yield 621 MPa
@Strain 0.200 %
90000 psi
@Strain 0.200 %
Elongation at Break 15.0 %15.0 %
Poissons Ratio 0.3300.330
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity >= 0.0000250 ohm-cm>= 0.0000250 ohm-cm
Magnetic Permeability <= 1.001<= 1.001
 
Thermal PropertiesMetricEnglishComments
CTE, linear 16.4 µm/m-°C9.10 µin/in-°F
Thermal Conductivity 38.0 W/m-K264 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 77.0 %77.0 %
Nickel, Ni 15.0 %15.0 %
Tin, Sn 8.00 %8.00 %

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NBBC12e / 323570

Specialty Compounds RTP Company

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