Box Elder News Journal | 1913-01-09 | Page 3 | Acid-Proof Composition

acid acad proof composition iron iroil alloys containing a certain percentage of 0 chromium are usually employed in the manufacture of 0 articles and apparatus should resist the action of 0 acids these compositions are however not absolutely recently the well known german metallurgist professor borchers of als aix la chapelle discovered that by adding molybdenum to an iron composition containing more inore than ten per cent ClIT in amounts of 0 25 per cent an absolutely acid proof composition can be obtained it is essential sent ial however that the iron bo be freo free from carbon or at least nearly so A composition containing 35 3 per er cent iron 60 per cent chromium and 5 per cent molybdenum it Is claimed remains unaffected even by hot aqua regla this alloy has the tenacity of 0 east cast iron and can be worked like the latter titanium and vanar liim larn may be used instead ol of but the latter le la preferable