Beryllium I-220H Grade 2
Subcategory: Pure Element; Nonferrous Metal; Beryllium Alloy
Key Words: Brush Wellman; I220H Alloys
Tensile data below for Grade 2 I-220H has been supplemented with other property data generally applicable to pure beryllium.
High strength, moderate ductility material produced for fabrication by near net shape pressing. Grade 2 has a minimum microyield strength (stress required to produce one microinch of permanent strain) of 69 MPa (10 ksi) - higher than Grade 1.
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 Brush Wellman and the references.
- Tensile Strength, Ultimate
- Tensile Strength, Yield
- Elongation at Break
- Modulus of Elasticity
- Poissons Ratio
- Shear Modulus
- Electrical Resistivity
- Magnetic Susceptibility
- Critical Superconducting Temperature
- Heat of Fusion
- CTE, linear 20°C
- CTE, linear 250°C
- CTE, linear 500°C
- CTE, linear 1000°C
- Specific Heat Capacity
- Thermal Conductivity
- Melting Point
- Emissivity (0-1)
- Reflection Coefficient, Visible (0-1)
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