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Molybdenum's prime alloy is TZM. It offers twice the strength of pure molybdenum at temperatures up to 1400°C. The recrystallization temperature of TZM is approximately 250°C higher than molybdenum and it offers
better weldability.
Nominal
Composition in Percent:
Ti
0.5
Zr 0.08
C 0.02
Mo Balance
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
Coefficient
of Linear Expansion:
4.9 μm/m ⋅
K
at 20 to 40 °C
Elastic
Modulus:
Tension, 315 GPa (46 × 106 psi) at 20 °C;
205
GPa (30 × 106 psi) at 1095 °C
Typical
Tensile Properties of TZM:
| Temperature |
Tensile
Strength |
Yield Strength
at 0.2%
Offset |
Elongation
in 50 mm |
| °C |
MPa |
ksi |
MPa |
ksi |
% |
| |
|
|
|
|
|
| Stress-Relieved
Condition: |
| 20 |
965 |
140 |
860 |
125 |
10 |
| 1095 |
490 |
71 |
435 |
63 |
-- |
| 1650 |
83 |
12 |
62 |
9 |
-- |
| |
|
|
|
|
|
| Recrystallized
Material: |
| 20 |
550 |
80 |
380 |
55 |
20 |
| 1095 |
505 |
73 |
|
|
|
| 1650 |
369 |
53.5 |
-- |
-- |
-- |
Applications:
Components
for HIP, sintering and heat treatment furnaces
Metals
for
rotating anodes for medical diagnostics
Boats
for
annealing and sintering processes (temperatures up to 1400 °C)
Forming
tools such as hot runner nozzles for plastic injection moulding
Moulds
for
light-alloy casting
Billets
for the isothermal forging
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