FabDigitFabDigit

Refractory Metal T-111 vs Ta-10W

Refractory Metal · grade comparison

Refractory Metal T-111 and Ta-10W are both refractory metal grades. Ta-10W is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 415 MPa (60.2 ksi) for T-111, about 33% more; tensile strength follows at 690 MPa (100 ksi) vs 550 MPa (79.8 ksi). T-111 runs hotter in service (2,200°C vs 300°C continuous). On the shop floor, T-111 welds better (80 vs 70 out of 100) and T-111 forms better (very good vs good).

T-111Choose it when the part sees heat, or when it will be welded.

Ta-10WChoose it when strength drives the design.

T-111 vs Ta-10W: properties

T-111Ta-10W

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Shear Modulus

74 GPa10.7 Msi
78 GPa11.3 Msi

Bulk Modulus

210 GPa30.5 Msi
200 GPa29 Msi

Poisson's Ratio

0.35
0.33

Tensile Strength (Ultimate)

550 MPa79.8 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

415 MPa60.2 ksi
550 MPa79.8 ksi

Compressive Strength

425 MPa61.6 ksi
—

Shear Strength

330 MPa47.9 ksi
415 MPa60.2 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
290 MPa42.1 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
—

Charpy V-Notch Impact (RT)

110 J81.1 ft·lbf
—

Hardness, Brinell

220 HB
225 HB

Hardness, Rockwell B

99 HRB
97 HRB

Hardness, Rockwell C

21 HRC
—

Hardness, Vickers

235 HV
240 HV

Same in both: Elongation at Break 25% · Reduction in Area 60%

Physical

Density and transition temperatures.

Liquidus Temperature

3,055°C5,531 °F
3,080°C5,576 °F

Same in both: Density 16.8 g/cm³0.61 lb/in³ · Melting Point (Solidus) 3,030°C5,486 °F

Thermal

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

Thermal Conductivity

42 W/m·K24.3 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

195 J/g83.8 BTU/lb
185 J/g79.5 BTU/lb

Max Service Temperature (continuous)

2,200°C3,992 °F
300°C572 °F

Min Service Temperature

-253°C-423 °F
-269°C-452 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 6.5 µm/m·K3.6 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.9 % IACS
7 % IACS

Same in both: Electrical Resistivity 2.5×10⁻⁷ Ω·m9.84 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
—

Corrosion Resistance

93 / 100
95 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

20%
18%

Weldability

80 / 100
70 / 100

Formability (cold)

70 / 100
55 / 100

Castability

30 / 100
15 / 100

Same in both: Machinability 25 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

4,400 MJ/kg1,891,661 BTU/lb
3,600 MJ/kg1,547,723 BTU/lb

Embodied Carbon (primary production)

265 kg CO₂/kg
220 kg CO₂/kg

Typical Recycled Content

20%
25%

Embodied Water

—
2,500 L/kg300 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

33 kN·m/kg
41 kN·m/kg

Specific Stiffness (E / density)

11.9 MN·m/kg
12.2 MN·m/kg

Modulus of Resilience

431 kJ/m³
738 kJ/m³

Thermal Diffusivity

17.9 mm²/s
18.5 mm²/s

Thermal Shock Resistance Index

18
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 scaleTa-10WT-111

Manufacturing and finishing

CapabilityT-111Ta-10W
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

T-111 vs Ta-10W — frequently asked

Is Ta-10W stronger than T-111?

Yes. Ta-10W has a typical yield strength of 550 MPa (79.8 ksi) against 415 MPa (60.2 ksi) for T-111 — about 33% more. Tensile strength is 690 MPa (100 ksi) vs 550 MPa (79.8 ksi).

Which is cheaper, T-111 or Ta-10W?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, T-111 or Ta-10W?

T-111. Its weldability rates very good (80/100) against very good (70/100) for Ta-10W.

Ready to make it?

Upload a CAD file and FabDigit prices the part in T-111 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.