TZM Molybdenum

TZM Molybdenum is an alloy of 0.50% titanium, 0.08% zirconium and 0.02% carbon with the balance molybdenum. TZM Molybdenum is manufactured using P/M or arc casting techniques and has great utility due to its high strength/high temperature applications (especially above 2000°F).

TZM molybdenum has a higher recrystallization temperature, higher strength, hardness, and good room and high temperature ductility than unalloyed molybdenum. TZM is twice as strong as pure molybdenum at temperatures in excess of 1300C.

TZM has a recrystallization temperature of about 250°C, which is higher than molybdenum, and has better weldability. In addition, TZM has good thermal conductivity, low vapor pressure and good corrosion resistance.

TZM costs about 25% more than pure molybdenum, while machine costs are only about 5-10% more. For high-intensity applications such as rocket nozzles, structural furnace components and forging dies, the cost difference is well worth it.

AEM has developed low-oxygen TZM alloys in which oxygen content can be reduced to less than 50 ppm. The oxygen content is low, the particles are small, well dispersed, and the strengthening effect is significant.

Our low-oxygen TZM alloys have excellent creep resistance, higher recrystallization temperatures and better high-temperature strength.