Products

Boron Carbide (B4C) is one of the hardest man-made materials available in commercial quantities that has a finite melting point low enough to permit its relatively easy fabrication into shapes. Some of Boron Carbide’s unique properties include: high hardness, chemical inertness, and a high neutron absorbing cross section. Washington Mills is the only manufacturer of Boron Carbide (B4C) crude in North America.

Fused Silica is made from high purity silica, using unique fusion technology to ensure the highest quality. Our Fused Silica is over 99% amorphous and has an extremely low coefficient of thermal expansion and high resistance to thermal shock. Fused Silica is inert, has excellent chemical stability, and has extremely low electrical conductivity.

Chrome Alumina is a virgin, high purity fused chrome alumina grain. Washington Mills has the ability to vary the Cr2O3 content from 0.1% up to 99+%. Fused, high purity chrome alumina is used in specialty product applications where a high resistance to corrosion is desirable.

Emerundum is produced from naturally occurring Emery ore that is rich in aluminum oxide. Mineralogically, Emery is an intimate mix of corundum and magnetite. Corundum is a natural form of aluminum oxide. It is this percentage of aluminum oxide in Emery which makes Emerundum so extremely hard, tough, and fracture resistant. Emerundum is crushed only from specially selected abrasive Emery ore that contains not less than 58% aluminum oxide.

Cryolite is a synthetic mineral that closely approximates the performance of natural Greenland cryolite and is used as an active filler in grinding wheels. Washington Mills distributes, Sodium Hexafluoro aluminate (Na3AIF6), known as Cryolite.