Home Products Beryllium Products Beryllium Metal Instrument Grade INSTRUMENT GRADE BERYLLIUM FOR AEROSPACE & SPACE Our hot isostatically pressed beryllium metals, I-220-H and I-70-H, are lightweight and infrared reflective. Combined with their high stiffness and stability over a range of temperatures, these metals are ideal for decreasing the weight of instrumentation in aircraft and satellites. INSTRUMENT GRADE BERYLLIUM APPLICATIONS & ATTRIBUTES I-70-H Beryllium I-70-H grade beryllium consists of 99% beryllium with a maximum of 0.7% beryllium oxide. Low oxide grades allow for bare beryllium mirrors to yield a lower level scatter and to polish easier than higher oxide grades. I-70-H grade beryllium metal is stable over a wide range of temperatures from -196°C to 226°C (-321°F to 440°F) and offers superior reflectivity in the far infrared region (98.5% at 8-12 micron wavelengths) without optical coatings. This IR reflectivity enables designers to create defense applications that are more difficult to detect. I-70-H is available in several forms, including rod, bar cut from block and specialty sizes or shapes. For more technical information, download the I-70-H beryllium metal spec. sheet. I-220-H Beryllium I-220-H beryllium is an instrument grade beryllium metal used in applications requiring high resistance to plastic deformation at low stress levels. The high resistance to plastic deformation at low stress levels is crucial for applications that require high micro-yield strength. Typical uses include telescope supports on space exploration satellites and optical satellites. I-220-H is available in several forms: rod, bar cut from a block and specialty sizes or shapes. For additional technical details, download the I-220-H beryllium metal spec. sheet. INSTRUMENT GRADE PROPERTIES I-220-H I-70-H Ultimate Tensile Strength, ksi, minimum 65 ksi (448 Mpa) 50 ksi (345 Mpa) Yield Strength (0.2% offset), ksi, minimum 50 ksi (345 Mpa) 30 ksi (207 Mpa) Elongation (% in 4 diameters), minimum 2.0% 2.0% Micro-yield Strength, ksi 6.0 ksi 3.0 ksi BERYLLIUM METALS FOR AEROSPACE & SPACE INSTRUMENTS Materion beryllium metals I-220-H and I-70-H provide a unique combination of properties that make them ideal for use in the most advanced aerospace and satellite applications. ENGINEERING DESIGN AND PROJECT SUPPORT Our Special Products and Application Development Engineering (SPADE) team can ensure that you get optimum results when using our beryllium metals for aerospace and space applications. We help manage projects and provide engineering support from design inception to project completion, even with the most complex design challenges. Work with Materion’s SPADE group for engineering assistance on advanced applications.