Performance Alloys MoldStar® 90 Copper Mold Alloy

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Performance Alloys MoldStar® 90 Copper Mold Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Description: MoldStar® 90 is a beryllium-free copper alloy for the blow molding and injection molding industries as well as other industrial applications. MoldStar® 90 provides a good balance of thermal conductivity, hardness, corrosion resistance and wear. Applications: Mold Inserts Thermal Pins Mold Cores Cavities Lifters Etc. Information provided by Performance Alloys.
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Physical Properties	Original Value	Comments

Density	0.310 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Brinell	311	3000kg
Hardness, Rockwell C	31
Tensile Strength at Break	150000 psi
Tensile Strength, Yield	140 ksi
Elongation at Break	5.0 %	in 2"
Compressive Strength	140 ksi

Thermal Properties	Original Value	Comments
CTE, linear	9.50 µin/in-°F @Temperature 20.0 °C
Thermal Conductivity	1080 BTU-in/hr-ft²-°F @Temperature 15.6 °C

Component Elements Properties	Original Value	Comments
Copper, Cu	89 %
Nickel, Ni	7.5 %
Other	3.5 %

Descriptive Properties
Thermal diffusivity at 68°F	1.76 ft²/hr

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NPER01 / 18768

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