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Materion BrushCAST® 275CT Fine Grain Casting Alloy (As Cast)

Category Metal , Nonferrous Metal , Copper Alloy , Copper Casting Alloy
Manufacturer Materion Corporation (former Brush Wellman)
Trade Name BrushCAST®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Materion BrushCAST® 275CT Fine Grain Casting Alloy (As Cast).pdf
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Material Notes:
Pouring Temperature: 960-1035°CHeat treatment required for max strength (Annealing): 760-790°C/water quenchHeat treatment required for max strength (Hardening): 760-790°C/water quenchDescription: 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 are available in fine grain equivalents. Material properties and manufacturing characteristics are similar to those of the standard casting alloys. Grain refinement is achieved through precise additions of either cobalt or titanium. Our fine grain casting alloys are preferred in applications where excellent surface finish characteristics are required in the cast product.Information supplied by Brush Wellman Engineered Materials.Brush Engineered Materials Inc. changed its name to Materion Corporation in March 2011.
Physical Properties Metric English Comments
Density 8.14 g/cc
0.294 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 80 - 90
80 - 90
Tensile Strength, Ultimate 586 - 621 MPa
85000 - 90000 psi
Tensile Strength, Yield 345 - 414 MPa

@Strain 0.200 %
50000 - 60000 psi

@Strain 0.200 %
Elongation at Break 5 - 25 %
5 - 25 %
Modulus of Elasticity 131 GPa
19000 ksi
Thermal Properties Metric English Comments
CTE, linear 18.0 µm/m-°C

@Temperature 21.1 - 204 °C
10.0 µin/in-°F

@Temperature 70.0 - 400 °F
Thermal Conductivity 89.9 W/m-K
624 BTU-in/hr-ft²-°F
Component Elements Properties Metric English Comments
Beryllium, Be 2.5 - 2.85 %
2.5 - 2.85 %
Cobalt, Co 0.35 - 0.70 %
0.35 - 0.70 %
Copper, Cu 96.5 %
96.5 %
as balance
Silicon, Si 0.20 - 0.35 %
0.20 - 0.35 %
Titanium, Ti 0.020 - 0.12 %
0.020 - 0.12 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000748 - 0.0000101 ohm-cm
0.00000748 - 0.0000101 ohm-cm
Conductivity is 17-23% IACS
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