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Refractory Metal Pure Ta vs Ta-10W

Refractory Metal · grade comparison

Refractory Metal Pure Ta and Ta-10W are both refractory metal grades. Ta-10W is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 170 MPa (24.7 ksi) for Pure Ta, about 3.2 times as much; tensile strength follows at 690 MPa (100 ksi) vs 250 MPa (36.3 ksi). In exchange, Pure Ta is the more ductile: elongation 38% versus 25% for Ta-10W, and Ta-10W is harder (225 HB vs 95 HB). Ta-10W is stiffer (205 GPa vs 186 GPa) and Pure Ta conducts heat better (57.5 W/m·K vs 45 W/m·K). On the shop floor, Ta-10W sits in a lower cost tier (high, $$$$) than Pure Ta (specialty, $$$$$).

Pure TaChoose it when the part is bent, formed or impact-loaded.

Ta-10WChoose it when strength drives the design, or when cost is the deciding factor.

Pure Ta vs Ta-10W: properties

Pure TaTa-10W

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

186 GPa27 Msi
205 GPa29.7 Msi

Shear Modulus

69 GPa10 Msi
78 GPa11.3 Msi

Poisson's Ratio

0.34
0.33

Tensile Strength (Ultimate)

250 MPa36.3 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

170 MPa24.7 ksi
550 MPa79.8 ksi

Elongation at Break

38%
25%

Reduction in Area

75%
60%

Shear Strength

170 MPa24.7 ksi
415 MPa60.2 ksi

Fatigue Strength (Endurance Limit)

140 MPa20.3 ksi
290 MPa42.1 ksi

Hardness, Brinell

95 HB
225 HB

Hardness, Rockwell B

52 HRB
97 HRB

Hardness, Vickers

95 HV
240 HV

Same in both: Bulk Modulus 200 GPa29 Msi

Physical

Density and transition temperatures.

Density

16.6 g/cm³0.6 lb/in³
16.8 g/cm³0.61 lb/in³

Melting Point (Solidus)

2,996°C5,425 °F
3,030°C5,486 °F

Liquidus Temperature

2,996°C5,425 °F
3,080°C5,576 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

57.5 W/m·K33.2 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Specific Heat Capacity

140 J/kg·K0.03 BTU/lb·°F
145 J/kg·K0.03 BTU/lb·°F

Latent Heat of Fusion

202 J/g86.8 BTU/lb
185 J/g79.5 BTU/lb

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

12.8 % IACS
7 % IACS

Electrical Resistivity

1.35×10⁻⁷ Ω·m5.31 µΩ·in
2.5×10⁻⁷ Ω·m9.84 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
—

Corrosion Resistance

97 / 100
95 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

22 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
18%

Weldability

72 / 100
70 / 100

Formability (cold)

92 / 100
55 / 100

Castability

10 / 100
15 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

4,200 MJ/kg1,805,677 BTU/lb
3,600 MJ/kg1,547,723 BTU/lb

Embodied Carbon (primary production)

260 kg CO₂/kg
220 kg CO₂/kg

Embodied Water

700 L/kg83.9 gal/lb
2,500 L/kg300 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

15 kN·m/kg
41 kN·m/kg

Specific Stiffness (E / density)

11.2 MN·m/kg
12.2 MN·m/kg

Modulus of Resilience

78 kJ/m³
738 kJ/m³

Thermal Diffusivity

24.7 mm²/s
18.5 mm²/s

Thermal Shock Resistance Index

12
23

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.

1502003005007001,0001,5005101520Density (g/cm³)Yield strength (MPa) — log scalePure TaTa-10W

Manufacturing and finishing

CapabilityPure TaTa-10W
Default conditionVacuum Annealed—
Relative cost$$$$$ Specialty$$$$ High
Min. machined wall——
Best machined surface——

Pure Ta vs Ta-10W — frequently asked

Is Ta-10W stronger than Pure Ta?

Yes. Ta-10W has a typical yield strength of 550 MPa (79.8 ksi) against 170 MPa (24.7 ksi) for Pure Ta — about 3.2 times as much. Tensile strength is 690 MPa (100 ksi) vs 250 MPa (36.3 ksi).

Which is cheaper, Pure Ta or Ta-10W?

Ta-10W 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.

When should I choose Pure Ta over Ta-10W?

Pick Pure Ta when the part is bent, formed or impact-loaded. Pick Ta-10W when strength drives the design, or when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Pure Ta and Ta-10W 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.