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Beryllium PR-200; 0.25 - 0.45 inch thick sheet
Categories: Metal; Nonferrous Metal; Beryllium Alloy; Pure Element

Material Notes: Composition listed is reported for product available from Materion Corporation (formerly Brush Wellman). Tensile data below specific to this thickness PR-200 has been supplemented with other property data generally applicable to pure beryllium.

Manufactured by warm-rolling billets of vacuum hot pressed block encased in steel. Rolling creates anisotropy in the product, so cross-directional rolling techniques are often used.

Please note that there are health hazards associated with beryllium, especially when present as airborne particles generated during processing. As with any material, be aware of hazards and take steps to reduce exposure to a safe level.

General beryllium information: Beryllium is one of the lightest metals and has a high strength-to-weight ratio, stiffness-to-weight ratio, and very high specific heat, thermal conductivity, and heat of fusion. It has significant ductility, is readily machined and can be rolled, drawn, or extruded. It finds applications in nuclear reactors (neutron moderator and reflector), X-ray sources/detectors (X-ray transparency), IR target acquisition systems, inertial guidance instruments, computer parts, other aircraft and satellite structures, and heat sink constraining cores. Beryllium is usually produced via a powder metallurgy process to improve machinability and mechanical properties.

Information provided by Materion Corporation (formerly Brush Wellman) and the references.

Key Words: Brush Wellman; PR200 Alloys
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.844 g/cc
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate >= 450 MPa
Tensile Strength, Yield >= 310 MPa
@Strain 0.2 %
Elongation at Break >= 4.0 %
Modulus of Elasticity 303 GPa
Poissons Ratio 0.070 - 0.18values between 0.07 and 0.18 have been reported for beryllium
Shear Modulus 135 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000430 ohm-cm
Magnetic Susceptibility -1.00e-6cgs/g
Critical Superconducting Temperature 0.0260 K
 
Thermal PropertiesOriginal ValueComments
Heat of Fusion 1133 J/gBe has an unusually high heat of fusion.
CTE, linear 11.5 µm/m-°C
@Temperature 25.0 °C
increases rapidly until 100°C
 14.5 µm/m-°C
@Temperature 25.0 - 300 °C
 16.5 µm/m-°C
@Temperature 25.0 - 600 °C
 18.4 µm/m-°C
@Temperature 25.0 - 1000 °C
Specific Heat Capacity 1.925 J/g-°C
Thermal Conductivity 216 W/m-K
Melting Point 1273 - 1283 °C
Boiling Point 2471 °C
 
Optical PropertiesOriginal ValueComments
Emissivity (0-1) 0.61650 nm
Reflection Coefficient, Visible (0-1) 0.5050% visible; 55% UV; 98% IR (10.6 µm)
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al <= 0.10 %
BeO <= 1.5 %
Beryllium, Be >= 98.5 %
Carbon, C <= 0.15 %
Iron, Fe <= 0.13 %
Magnesium, Mg <= 0.080 %
Other, each <= 0.040 %
Silicon, Si <= 0.060 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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MBEPR2 / 10290

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