Home Products Beryllium Products Beryllium Metal Optical Grade BERYLLIUM METAL FOR OPTICAL SPACE SYSTEMS “It should be noted that JWST would likely not be possible without the development of O-30 beryllium.” - H. Philip Stahl, NASA Marshall Space Flight Center, Dave Baiocchi, RAND Corporation, Astro2010. (Image Courtesy of NASA) Beryllium metal O-30-H is a hot isostatically pressed optical grade beryllium metal that is 99% beryllium and 0.5% beryllium oxide. For bare beryllium mirrors, low oxide grades are preferred because they yield a lower level scatter and polish easier than higher oxide grades. OPTICAL BERYLLIUM APPLICATIONS & ATTRIBUTES Materion’s O-30-H beryllium was originally developed to make the mirrors for the James Webb Space Telescope (JWST). The unique combination of property characteristics make this material critical for expanding optical space applications. O-30-H was featured in Astro2010: The Astronomy and Astrophysics Decadal Survey, Technology Development Papers, no. 23. In Enabling Future Space Telescopes: Mirror Technology Review and Development Roadmap, Dave Baiocchi of RAND Corporation and H. Philip Stahl of NASA Marshall discuss O-30-H beryllium metal and the ways it advances space optics. In addition to the low scatter optics of O-30-H, this metal is well suited for a variety of other space applications. With the highest thermal isotropy of any grade of the beryllium metals that we offer, it is a cryogenically optimal substrate material. Read our O-30-H data sheet for more on the chemistry and mechanical properties. BERYLLIUM METAL DESIGN & PERFORMANCE ADVANTAGES We offer engineering design support for our high purity beryllium metals, including O-30-H. Our Special Products and Application Development Engineering (SPADE) team provides project management to reduce our customers’ project risk. OPTICAL BERYLLIUM METAL OPTIONS We offer a range of optical beryllium metal options, depending on the property requirements for specific applications. All of our high quality beryllium products provide higher strength-to-weight ratios than aluminum and higher resistance to heat. They are reliable for applications in environments that experience extreme temperature changes. Beryllium offers large specific stiffness and a near-zero coefficient of thermal expansion, making it ideal for cryogenic mirrors. Discuss the advantages and benefits of beryllium metals with our engineering team to see how they can help you improve your next application.