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Master Bond adhesives
Beryllium I-220H Grade 1
Categories: Metal; Nonferrous Metal; Beryllium Alloy; Pure Element

Material Notes: Tensile data below for Grade 1 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 1 has a minimum microyield strength (stress required to produce one microinch of permanent strain) of 41 MPa (6.0 ksi).

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; I220H Alloys
Vendors:
Available Properties
  • Density
  • Tensile Strength, Ultimate, Minimum specified by Brush Wellman.
  • Tensile Strength, Yield, Minimum specified by Brush Wellman.
  • Elongation at Break, Minimum specified by Brush Wellman when a major dimension exceeds 20 in. (508 mm).
  • Elongation at Break, Minimum specified by Brush Wellman when a major dimension does not exceed 20 in. (508 mm).
  • Modulus of Elasticity
  • Poissons Ratio, values between 0.07 and 0.18 have been reported for beryllium
  • Shear Modulus
  • Electrical Resistivity
  • Magnetic Susceptibility, cgs/g
  • Critical Superconducting Temperature
  • Heat of Fusion, Be has an unusually high heat of fusion.
  • CTE, linear, increases rapidly until 100°C
  • CTE, linear
  • CTE, linear
  • CTE, linear
  • Specific Heat Capacity
  • Thermal Conductivity
  • Melting Point
  • Boiling Point
  • Emissivity (0-1), 650 nm
  • Reflection Coefficient, Visible (0-1), 50% visible; 55% UV; 98% IR (10.6 µm)
  • Beryllium, Be
  
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