Refractory Metal Pure Ta vs R05400
Refractory Metal · grade comparison
Refractory Metal Pure Ta and R05400 are both refractory metal grades. Both yield at about 170 MPa — strength does not separate them. Pure Ta is harder — 95 HB against 90 HB for R05400 — which matters for wear surfaces and threads. On the shop floor, R05400 sits in a lower cost tier (high, $$$$) than Pure Ta (specialty, $$$$$).
Pure TaChoose it when surface hardness matters.
R05400Choose it when cost is the deciding factor.
Pure Ta vs R05400: 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.
Poisson's Ratio
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Fracture Toughness (K_IC)
Same in both: Elastic (Young's) Modulus 186 GPa27 Msi · Shear Modulus 69 GPa10 Msi · Bulk Modulus 200 GPa29 Msi · Tensile Strength (Ultimate) 250 MPa36.3 ksi · Yield Strength (0.2% offset) 170 MPa24.7 ksi · Reduction in Area 75% · Hardness, Vickers 95 HV
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 16.6 g/cm³0.6 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Latent Heat of Fusion
Same in both: Specific Heat Capacity 140 J/kg·K0.03 BTU/lb·°F · 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.
Same in both: Electrical Conductivity 12.8 % IACS · Electrical Resistivity 1.35×10⁻⁷ Ω·m5.31 µΩ·in
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.
Weldability
Formability (cold)
Same in both: Machinability 22 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Castability 10 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
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.
Thermal Diffusivity
Same in both: Specific Strength (UTS / density) 15 kN·m/kg · Specific Stiffness (E / density) 11.2 MN·m/kg · Modulus of Resilience 78 kJ/m³ · Thermal Shock Resistance Index 12
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 | Pure Ta | R05400 |
|---|---|---|
| Default condition | Vacuum Annealed | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pure Ta vs R05400 — frequently asked
What is the difference between Pure Ta and R05400?
Refractory Metal Pure Ta and R05400 are both refractory metal grades. Both yield at about 170 MPa — strength does not separate them. Pure Ta is harder — 95 HB against 90 HB for R05400 — which matters for wear surfaces and threads.
Which is cheaper, Pure Ta or R05400?
R05400 is the lower-cost material: it sits in the high tier ($$$$) while Pure Ta is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, Pure Ta or R05400?
R05400. Its weldability rates very good (78/100) against very good (72/100) for Pure Ta.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pure Ta and R05400 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.