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Master Bond adhesives

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Materion BrushCAST® 21C High Strength Casting Alloy (As Cast)
Categories: Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy

Material Notes: Pouring Temperature: 1010-1120°C
Heat treatment required for max strength (Annealing): 760-790°C/water quench
Heat treatment required for max strength (Hardening): 760-790°C/water quench

Description: The unique combination of physical and mechanical properties of copper beryllium casting alloys provide a dynamic range of metallurgical alternatives to meet specific performance requirements. The inherent strength, hardness, conductivity, and castability of these materials make them ideal for applications which require a high performance engineered material solution. Advancements in component casting technology and proprietary material production technology pioneered by Brush Wellman have resulted in BrushCAST™ alloys being a cost effective design choice.

BrushCAST™ high strength casting alloys provide peak strength and hardness greater than many steels, but with thermal conductivity similar to that of aluminum and up to five times that of steel. Additionally, these alloys offer good electrical conductivity, excellent wear and galling resistance, and the highest accuracy in replicating fine detail in cast components.

Information supplied by Brush Wellman Engineered Materials.

Brush Engineered Materials Inc. changed its name to Materion Corporation in March 2011.

Key Words: UNS C82510
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Physical PropertiesOriginal ValueComments
Density 0.300 lb/in³
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell B 80 - 85
Tensile Strength, Ultimate 75000 - 85000 psi
Tensile Strength, Yield 40000 - 50000 psi
@Strain 0.2 %
Elongation at Break 15 - 30 %
Modulus of Elasticity 19000 ksi
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000688 - 0.00000956 ohm-cmConductivity is 18-25% IACS
 
Thermal PropertiesOriginal ValueComments
CTE, linear 10.0 µin/in-°F
@Temperature 21.1 - 204 °C
Thermal Conductivity 672 BTU-in/hr-ft²-°F
 
Component Elements PropertiesOriginal ValueComments
Beryllium, Be 1.9 - 2.15 %
Carbon, C 0.20 - 0.35 %
Cobalt, Co 1.0 - 1.2 %
Copper, Cu 96.5 %as balance

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NBBC37 / 15347

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