Refractory Metal Mo-41Re vs TZM
Refractory Metal · grade comparison
Refractory Metal Mo-41Re and TZM are both refractory metal grades. Mo-41Re is the stronger of the two: yield strength 900 MPa (131 ksi) against 760 MPa (110 ksi) for TZM, about 18% more; tensile strength follows at 1,100 MPa (160 ksi) vs 900 MPa (131 ksi). Mo-41Re is harder — 33 HRC against 26 HRC for TZM — which matters for wear surfaces and threads. TZM is lighter (10.22 g/cm³ vs 13.6 g/cm³ for Mo-41Re) and Mo-41Re is stiffer (360 GPa vs 315 GPa). On the shop floor, TZM machines more easily (fair vs poor), Mo-41Re welds better (very good vs poor), and Mo-41Re forms better (good vs poor).
Mo-41ReChoose it when strength drives the design, or when surface hardness matters.
TZMChoose it when weight is the constraint, or when the part is machined in volume.
Mo-41Re vs TZM: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all refractory metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all refractory metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Rockwell C
Hardness, Vickers
Compressive Strength
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Elongation at Break 15%
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Min Service Temperature
Same in both: Max Service Temperature (continuous) 1,300°C2,372 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 65 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every refractory metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Mo-41Re | TZM |
|---|---|---|
| Default condition | — | Stress Relieved |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Mo-41Re vs TZM — frequently asked
Is Mo-41Re stronger than TZM?
Yes. Mo-41Re has a typical yield strength of 900 MPa (131 ksi) against 760 MPa (110 ksi) for TZM — about 18% more. Tensile strength is 1,100 MPa (160 ksi) vs 900 MPa (131 ksi).
Which is cheaper, Mo-41Re or TZM?
Mo-41Re is the lower-cost material: it sits in the high tier ($$$$) while TZM is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, Mo-41Re or TZM?
TZM. Its machinability rates fair (45/100) against poor (22/100) for Mo-41Re; for welding the order is Mo-41Re first (very good, 70/100) then TZM (poor, 20/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Mo-41Re and TZM side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.