Refractory Metal TZC vs TZM
Refractory Metal · grade comparison
Refractory Metal TZC and TZM are both refractory metal grades. TZC is the stronger of the two: yield strength 930 MPa (135 ksi) against 760 MPa (110 ksi) for TZM, about 22% more; tensile strength follows at 1,050 MPa (152 ksi) vs 900 MPa (131 ksi). In exchange, TZM is the more ductile: elongation 15% versus 8% for TZC, and TZC is harder (30 HRC vs 26 HRC). TZC runs hotter in service (1,500°C vs 1,300°C continuous) and TZM conducts heat better (118 W/m·K vs 105 W/m·K). On the shop floor, TZM machines more easily (fair vs poor) and TZC sits in a lower cost tier (high, $$$$) than TZM (specialty, $$$$$).
TZCChoose it when strength drives the design, or when the part sees heat.
TZMChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
TZC 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.
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 315 GPa45.7 Msi · Shear Modulus 122 GPa17.7 Msi · Poisson's Ratio 0.32
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
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Thermal Expansion (CTE, 20–100 °C) 5.3 µm/m·K2.9 µin/in·°F · Min Service Temperature 20°C68 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 45 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 25%
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 | TZC | TZM |
|---|---|---|
| Default condition | — | Stress Relieved |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
TZC vs TZM — frequently asked
Is TZC stronger than TZM?
Yes. TZC has a typical yield strength of 930 MPa (135 ksi) against 760 MPa (110 ksi) for TZM — about 22% more. Tensile strength is 1,050 MPa (152 ksi) vs 900 MPa (131 ksi).
Which is cheaper, TZC or TZM?
TZC is the lower-cost material: it sits in the high tier ($$$$) while TZM is specialty ($$$$$). 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, TZC or TZM?
TZM. Its machinability rates fair (45/100) against poor (32/100) for TZC; for welding the order is TZM first (poor, 20/100) then TZC (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in TZC 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.