Materion ToughMet® 2 Strip A (TB00) Copper-Nickel-Tin Alloy

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Materion ToughMet® 2 Strip A (TB00) Copper-Nickel-Tin Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	ToughMet 2 material is a high-performance, wrought, heat treatable, lead-free strip alloy that imparts superior mechanical performance and high thermal stability to plain bearing applications. The alloy has both excellent resistance to wear and high resistance to galling and seizing under high loads. In addition, the ToughMet 2 alloy’s high thermal conductivity provides effective heat dissipation in bearing applications. Parts are easily formed and can be machined either before or after heat treatment. ToughMet 2 heat treatment is a simple single- step process for three hours at 370 - 400°C (700 - 750°F). Heat treated ToughMet 2 bearings do not significantly work harden in service. ToughMet 2 strip is available in two tempers (A and ½ H) depending on the required strength and formability. ToughMet 2 alloy is compatible with conventional processing fluids, oils, and lubricants. Information provided by Materion.
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Physical Properties	Original Value	Comments

Density	8.91 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Vickers	220 - 280
Tensile Strength	100 - 130 ksi
Tensile Strength, Yield	70.0 - 95.0 ksi
Elongation at Break	>= 15.0 %
Modulus of Elasticity	115 GPa	before heat treat
	140 GPa	after heat treat
Poissons Ratio	0.300
Shear Modulus	44.0 GPa	Calculated

Thermal Properties	Original Value	Comments
CTE, linear	9.00 µin/in-°F @Temperature 20.0 - 200 °C
Specific Heat Capacity	0.400 J/g-°C @Temperature >=100 °C
Thermal Conductivity	52.0 W/m-K

Component Elements Properties	Original Value	Comments
Copper, Cu	85.0 %
Nickel, Ni	9.00 %
Tin, Sn	6.00 %

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NBBC113h / 323578

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