High temperature stability.
Excellent strength and hardness.
Low thermal conductivity, sound transmission, heat storage.
Uniform density, excellent heat shock resistance and chemical corrosion resistance.
The excellent rigidity and breaking modulus make the sheet strong and self-supporting, but relatively light in weight and easy to cut or process.
Resistance to oxidation and reduction.
Allows rapid thermal cycling without cracking or peeling.
Resistant to penetration of molten aluminum and other non-ferrous metals.