Foseco International Limited

The International Nickel Company, Inc.

Paul I Fontaine

Evan Thomas Jones

John K Batham

Stuart W Shaw

A particulate flux composition suitable for desulphurizing and/or dephosphorizing molten ferrous metals and for use as a mould flux comprises prefused particles comprising calcium oxide and at least one other component, such as alumina, iron oxide, calcium fluoride, magnesium fluoride, sodium fluoride, silica, sodium oxide, zirconium oxide, titanium oxide or sodium borate, and in which each particle has a substantially vitreous amorphous structure. The composition is highly resistant to hydration and does not introduce hydrogen into the molten metal.

Calcium oxide based flux compositions

Treatment agents for steel suitable for desulphurizing molten steel comprise granules containing both magnesium oxide and/or carbonate and aluminium, the proportion of aluminium in the surface of the granules being substantially less than the overall proportion of aluminium in the granules. The granules are suitable for application into the molten steel via injection techniques.

Treatment agents for molten steel

The tensile ductility of low chromium substantially precipitation hardened nickel-base alloys within the temperature range of 600.degree. C. to 900.degree. C. is improved through the incorporation in the alloys of controlled amounts of yttrium.

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Solihull, United Kingdom

Paul I Fontaine