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Beryllium and you HSE

Series code: INDG311(rev1) Download a free copy INDG311 This leaflet is for people who work with beryllium and its compounds It tells you about the possible health effects – shortterm and longterm – and explains what you and your employer should do to control the risks Related products Working with substances hazardous to health; Control of substances hazardous to health (Fifth beryllium alloys are available in two alloy classes: High Strength (C17000, C17200, C17300), and High Conductivity (C17410, C17460, C17500, C17510) Both alloy classes are strengthened by thermal treatments (See Table 1) First, the alloy must be solution annealed so that the beryllium is dissolved into a solid solution and is available to take part in the subsequent age hardening step AT0005 0311 Brazing Copper Beryllium MaterionBeryllium does not form any compounds with aluminum Instead, it forms a series of alloys whose melting points vary from the melting point of Be (1283 °C) to that of Al (654 °C) However, the melting point line of Be 1x Al x is not linear but is an “sshaped” curve as shown in the following diagramBeryllium Alloys an overview ScienceDirect TopicsBeryllium oxide (BeO), also known as beryllia, is an inorganic compound with the formula BeO This colourless solid is a notable electrical insulator with a higher thermal conductivity than any other nonmetal except diamond, and exceeds that of most metals As an amorphous solid, beryllium oxide is whiteIts high melting point leads to its use as a refractory materialBeryllium oxide WikipediaBeryllium itself is an expensive material, yet it is not often a major contributor for the final cost of the mirror The grade chosen and beryllium content can affect the raw material cost by up to 50% AluminumBeryllium is a lower cost alternative but the mixture negatively impacts many of the desired properties of pure beryllium For fabrication of the mirrors themselves, it is often more Beryllium: Properties and Applications Laura Coyle