
Tungsten
-
High melting temperature (3422ºC)
-
Low vapor pressure
-
High electrical resistance
-
Low thermal expansion combined with good thermal conductivity
-
High E-modulus
Molybdenum
-
High melting temperature (2620ºC)
-
High hot strength
-
Low vapor pressure
-
Low thermal expansion
-
Extremely good corrosion resistance against molten metals and glass