AlBeCast 920® Composite

Alternative and trade names
AlBeCast 920®

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Description

Materion's AlBeCast® product line is a family of investment cast aluminum-beryllium metal matrix composites that provides designers a net-shape product. Advantages over aluminium A356.0:

~22% lower density

~3 times stiffer (modulus of elasticity in tension)

Up to 10 times better in damping coefficient

~40% lower in coefficient of thermal expansion (CTE)

~50% higher specific heat

~28% higher thermal conductivity

Advantages over beryllium:

~3 times greater ductility than hot pressed beryllium with greater damage tolerance

Castable for complex and precise net shape configurations

Weldable for defect repair

Reduced machining and scrap generation

Reduced environmental processing concerns resulting from reduced waste

Does not require chemical etching

Reduced material usage

Reduced cost

This material data has been provided by Materion Brush GmbH.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value
Density	23.0 °C	2.17 g/cm³ Show Supplier Material materials with Density of 2.17 g/cm³

Mechanical

Property	Temperature	Value	Comment
Compressive yield strength	23.0 °C	226.1 MPa Show Supplier Material materials with Compressive yield strength of 226.1 MPa
Elastic modulus	23.0 °C	193 GPa Show Supplier Material materials with Elastic modulus of 193 GPa
Elongation	23.0 °C	3 % Show Supplier Material materials with Elongation of 3 %
Fatigue strength	23.0 °C	117.2 MPa Show Supplier Material materials with Fatigue strength of 117.2 MPa	10⁷ cycles, R=-1, Kt=1
Poisson's ratio	23.0 °C	0.2 [-] Show Supplier Material materials with Poisson's ratio of 0.2 [-]
Shear strength	23.0 °C	247.5 MPa Show Supplier Material materials with Shear strength of 247.5 MPa	Pin Double Shear Strength
Tensile strength	23.0 °C	289.6 MPa Show Supplier Material materials with Tensile strength of 289.6 MPa
Yield strength Rp0.2	23.0 °C	213.7 MPa Show Supplier Material materials with Yield strength Rp0.2 of 213.7 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	23.0 °C	1.42E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.42E-5 1/K
Specific heat capacity	23.0 °C	1250 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 1250 J/(kg·K)
Thermal conductivity	23.0 °C	105.5 W/(m·K) Show Supplier Material materials with Thermal conductivity of 105.5 W/(m·K)

Electrical

Property	Value
Specific Electrical conductivity	40 % IACS Show Supplier Material materials with Specific Electrical conductivity of 40 % IACS

Chemical properties

Property	Value	Comment
Aluminium	Balance
Beryllium	61.1 - 68.6 % Show Supplier Material materials with Beryllium of 61.1 - 68.6 %
Cobalt	0.65 - 1.35 % Show Supplier Material materials with Cobalt of 0.65 - 1.35 %
Germanium	0.55 - 0.95 % Show Supplier Material materials with Germanium of 0.55 - 0.95 %
Iron	0.45 % Show Supplier Material materials with Iron of 0.45 %	max.
Nickel	0.2 % Show Supplier Material materials with Nickel of 0.2 %	max.
Silicon	0.2 % Show Supplier Material materials with Silicon of 0.2 %	max.
Silver	2.65 - 3.35 % Show Supplier Material materials with Silver of 2.65 - 3.35 %

Technological properties

Property

AlBeCast 920® Composite

Description

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Materials by this supplier

Properties