Refractory Metal Mo (Grade 360) vs TZM
Refractory Metal · grade comparison
Refractory Metal Mo (Grade 360) and TZM are both refractory metal grades. TZM is the stronger of the two: yield strength 760 MPa (110 ksi) against 585 MPa (84.8 ksi) for Mo (Grade 360), about 30% more; tensile strength follows at 900 MPa (131 ksi) vs 760 MPa (110 ksi). TZM is harder — 255 HB against 220 HB for Mo (Grade 360) — which matters for wear surfaces and threads. TZM runs hotter in service (1,300°C vs 1,100°C continuous) and Mo (Grade 360) conducts heat better (138 W/m·K vs 118 W/m·K). On the shop floor, Mo (Grade 360) forms better (fair vs poor) and Mo (Grade 360) sits in a lower cost tier (high, $$$$) than TZM (specialty, $$$$$).
Mo (Grade 360)Choose it when cost is the deciding factor.
TZMChoose it when strength drives the design, or when surface hardness matters.
Mo (Grade 360) 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Poisson's Ratio 0.32 · Elongation at Break 15% · Reduction in Area 45% · Fracture Toughness (K_IC) 20 MPa·√m18.2 ksi·√in
Physical
Density and transition temperatures.
Melting Point (Solidus)
Same in both: Density 10.22 g/cm³0.37 lb/in³ · Liquidus Temperature 2,623°C4,753 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 40% · Weldability 20 / 100 · Brazeability / Solderability 65 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 380 MJ/kg163,371 BTU/lb
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 (Grade 360) | TZM |
|---|---|---|
| Default condition | — | Stress Relieved |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Mo (Grade 360) vs TZM — frequently asked
Is TZM stronger than Mo (Grade 360)?
Yes. TZM has a typical yield strength of 760 MPa (110 ksi) against 585 MPa (84.8 ksi) for Mo (Grade 360) — about 30% more. Tensile strength is 900 MPa (131 ksi) vs 760 MPa (110 ksi).
Which is cheaper, Mo (Grade 360) or TZM?
Mo (Grade 360) is the lower-cost material: it sits in the high tier ($$$$) while TZM is specialty ($$$$$). 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 (Grade 360) or TZM?
TZM, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for Mo (Grade 360).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Mo (Grade 360) 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.