Molybdenum TZM (Titanium, Zirconium & Molybdenum)
General Properties of Molybdenum TZM
Density: 10.16 g/cc at 20°C
Recrystallization Temperature: 1425 to 1595°C
Stress-Relief Temperature: 1 hour at 1095 to 1260°C
Liquidus Temperature: 2620°C
Chemical composition:TZM: Mo + 0.40~0.55%Ti + 0.06~0.12%Zr + 0.01~0.04% C
Size: All kinds of TZM rods, plates and fabricated parts according to customer's drawings.
Applications for TZM
TZM is widely used in the aerospace,aviation and other industries.It could be used as nozzle material,valve body,gap piping materials,tubes in the gate material,die casting molds,extrusion dies and high temperature furnace heating element and heat shield etc.
TZM Strength Properties
TZM offers twice the strength of pure molybdenum at temperatures over 1300'C. The recrystallization temperature of TZM is approximately 250'C higher than molybdenum and it offers better weldability.The finer grain structure of TZM and the formation of TiC and ZrC in the grain boundaries of the molybdenum inhibit grain growth and the related failure of the base metal as a result of fractures along the grain boundaries. This also gives it better properties for welding. TZM costs approximately 25% more than pure molybdenum and costs only about 5-10% more to machine. For high strength applications such as rocket nozzles, furnace structural components, and forging dies, it can be well worth the cost differential.
TZC is a particle-strengthened molybdenum based alloy containing titanium, zirconium and carbon. TZC is an improvement of TZM and has good heat treatment hardening effect.