Refractory Metal Ta-10W vs Ta-2.5W
Refractory Metal · grade comparison
Refractory Metal Ta-10W and Ta-2.5W are both refractory metal grades. Ta-10W is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 310 MPa (45 ksi) for Ta-2.5W, about 77% more; tensile strength follows at 690 MPa (100 ksi) vs 415 MPa (60.2 ksi). In exchange, Ta-2.5W is the more ductile: elongation 28% versus 25% for Ta-10W, and Ta-10W is harder (225 HB vs 115 HB). Ta-2.5W conducts heat better (54 W/m·K vs 45 W/m·K). On the shop floor, Ta-2.5W welds better (80 vs 70 out of 100) and Ta-10W sits in a lower cost tier (high, $$$$) than Ta-2.5W (specialty, $$$$$).
Ta-10WChoose it when strength drives the design, or when cost is the deciding factor.
Ta-2.5WChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Ta-10W vs Ta-2.5W: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Same in both: Bulk Modulus 200 GPa29 Msi
Physical
Density and transition temperatures.
Density
Liquidus Temperature
Same in both: Melting Point (Solidus) 3,030°C5,486 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Latent Heat of Fusion
Same in both: Thermal Expansion (CTE, 20–100 °C) 6.5 µm/m·K3.6 µin/in·°F · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -269°C-452 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 18%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | Ta-10W | Ta-2.5W |
|---|---|---|
| Default condition | — | Vacuum Annealed |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Ta-10W vs Ta-2.5W — frequently asked
Is Ta-10W stronger than Ta-2.5W?
Yes. Ta-10W has a typical yield strength of 550 MPa (79.8 ksi) against 310 MPa (45 ksi) for Ta-2.5W — about 77% more. Tensile strength is 690 MPa (100 ksi) vs 415 MPa (60.2 ksi).
Which is cheaper, Ta-10W or Ta-2.5W?
Ta-10W is the lower-cost material: it sits in the high tier ($$$$) while Ta-2.5W is specialty ($$$$$). 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, Ta-10W or Ta-2.5W?
Ta-10W, by a small margin. Both rate poor for machinability — 25/100 against 18/100 for Ta-2.5W; for welding the order is Ta-2.5W first (very good, 80/100) then Ta-10W (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ta-10W and Ta-2.5W 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.