FabDigitFabDigit

Titanium TC11 vs Ti-6Al-6V-2Sn

Titanium · grade comparison

Titanium TC11 and Ti-6Al-6V-2Sn are both titanium grades. Both yield at about 960 MPa — strength does not separate them. Ti-6Al-6V-2Sn is harder — 36 HRC against 34 HRC for TC11 — which matters for wear surfaces and threads. TC11 is stiffer (118 GPa vs 110 GPa) and TC11 runs hotter in service (500°C vs 315°C continuous). On the shop floor, TC11 welds better (45 vs 35 out of 100).

TC11Choose it when the part sees heat, or when it will be welded.

Ti-6Al-6V-2SnChoose it when surface hardness matters.

TC11 vs Ti-6Al-6V-2Sn: properties

TC11Ti-6Al-6V-2Sn

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

118 GPa17.1 Msi
110 GPa16 Msi

Shear Modulus

44 GPa6.4 Msi
42.5 GPa6.2 Msi

Bulk Modulus

115 GPa16.7 Msi
105 GPa15.2 Msi

Poisson's Ratio

0.33
0.32

Tensile Strength (Ultimate)

1,080 MPa157 ksi
1,050 MPa152 ksi

Yield Strength (0.2% offset)

960 MPa139 ksi
980 MPa142 ksi

Elongation at Break

13%
14%

Reduction in Area

38%
30%

Compressive Strength

1,120 MPa162 ksi
1,010 MPa146 ksi

Shear Strength

680 MPa98.6 ksi
690 MPa100 ksi

Fatigue Strength (Endurance Limit)

520 MPa75.4 ksi
550 MPa79.8 ksi

Fracture Toughness (K_IC)

52 MPa·√m47.3 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

30 J22.1 ft·lbf
19 J14 ft·lbf

Hardness, Brinell

330 HB
340 HB

Hardness, Rockwell C

34 HRC
36 HRC

Hardness, Vickers

345 HV
355 HV

Physical

Density and transition temperatures.

Density

4.48 g/cm³0.16 lb/in³
4.54 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,600°C2,912 °F
1,690°C3,074 °F

Liquidus Temperature

1,660°C3,020 °F
1,705°C3,101 °F

Thermal

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

Thermal Conductivity

7.9 W/m·K4.6 BTU/hr·ft·°F
6.6 W/m·K3.8 BTU/hr·ft·°F

Specific Heat Capacity

610 J/kg·K0.15 BTU/lb·°F
544 J/kg·K0.13 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.6 µm/m·K4.8 µin/in·°F
9.1 µm/m·K5.1 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

500°C932 °F
315°C599 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.6×10⁻⁶ Ω·m63 µΩ·in
1.57×10⁻⁶ Ω·m61.8 µΩ·in

Same in both: Electrical Conductivity 1.1 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

88 / 100
82 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

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

Machinability

15 / 100
17 / 100

Machinability Rating (AISI 1212 = 100 %)

18%
20%

Weldability

45 / 100
35 / 100

Formability (cold)

15 / 100
20 / 100

Castability

25 / 100
30 / 100

Brazeability / Solderability

40 / 100
45 / 100

Polishability

70 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

650 MJ/kg279,450 BTU/lb
690 MJ/kg296,647 BTU/lb

Embodied Carbon (primary production)

42 kg CO₂/kg
45 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
900 L/kg108 gal/lb

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

241 kN·m/kg
231 kN·m/kg

Specific Stiffness (E / density)

26.3 MN·m/kg
24.2 MN·m/kg

Modulus of Resilience

3,905 kJ/m³
4,365 kJ/m³

Thermal Diffusivity

2.9 mm²/s
2.7 mm²/s

Thermal Shock Resistance Index

8
7

Strength versus weight

Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleTi-6Al-6V-2SnTC11

Manufacturing and finishing

CapabilityTC11Ti-6Al-6V-2Sn
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

TC11 vs Ti-6Al-6V-2Sn — frequently asked

What is the difference between TC11 and Ti-6Al-6V-2Sn?

Titanium TC11 and Ti-6Al-6V-2Sn are both titanium grades. Both yield at about 960 MPa — strength does not separate them. Ti-6Al-6V-2Sn is harder — 36 HRC against 34 HRC for TC11 — which matters for wear surfaces and threads.

Which is cheaper, TC11 or Ti-6Al-6V-2Sn?

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, TC11 or Ti-6Al-6V-2Sn?

TC11. Its weldability rates fair (45/100) against fair (35/100) for Ti-6Al-6V-2Sn.

Ready to make it?

Upload a CAD file and FabDigit prices the part in TC11 and Ti-6Al-6V-2Sn 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.