FabDigitFabDigit

Titanium Ti-6Al-6V-2Sn vs Ti Grade 29

Titanium · grade comparison

Titanium Ti-6Al-6V-2Sn and Ti Grade 29 are both titanium grades. Ti-6Al-6V-2Sn is the stronger of the two: yield strength 980 MPa (142 ksi) against 830 MPa (120 ksi) for Ti Grade 29, about 18% more; tensile strength follows at 1,050 MPa (152 ksi) vs 900 MPa (131 ksi). Ti-6Al-6V-2Sn is harder — 36 HRC against 33 HRC for Ti Grade 29 — which matters for wear surfaces and threads. On the shop floor, Ti Grade 29 welds better (very good vs fair) and Ti Grade 29 forms better (fair vs poor).

Ti-6Al-6V-2SnChoose it when strength drives the design, or when surface hardness matters.

Ti Grade 29Choose it when it will be welded.

Ti-6Al-6V-2Sn vs Ti Grade 29: properties

Ti-6Al-6V-2SnTi Grade 29

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
114 GPa16.5 Msi

Shear Modulus

42.5 GPa6.2 Msi
44 GPa6.4 Msi

Bulk Modulus

105 GPa15.2 Msi
110 GPa16 Msi

Poisson's Ratio

0.32
0.34

Tensile Strength (Ultimate)

1,050 MPa152 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

980 MPa142 ksi
830 MPa120 ksi

Elongation at Break

14%
15%

Reduction in Area

30%
38%

Compressive Strength

1,010 MPa146 ksi
870 MPa126 ksi

Shear Strength

690 MPa100 ksi
570 MPa82.7 ksi

Fatigue Strength (Endurance Limit)

550 MPa79.8 ksi
520 MPa75.4 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

19 J14 ft·lbf
27 J19.9 ft·lbf

Hardness, Brinell

340 HB
330 HB

Hardness, Rockwell C

36 HRC
33 HRC

Hardness, Vickers

355 HV
340 HV

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,690°C3,074 °F
1,604°C2,919 °F

Liquidus Temperature

1,705°C3,101 °F
1,660°C3,020 °F

Thermal

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

Thermal Conductivity

6.6 W/m·K3.8 BTU/hr·ft·°F
6.7 W/m·K3.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

365 J/g157 BTU/lb
290 J/g125 BTU/lb

Min Service Temperature

-196°C-321 °F
-253°C-423 °F

Same in both: Max Service Temperature (continuous) 315°C599 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.1 % IACS
1 % IACS

Electrical Resistivity

1.57×10⁻⁶ Ω·m61.8 µΩ·in
1.71×10⁻⁶ Ω·m67.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

82 / 100
96 / 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

17 / 100
20 / 100

Weldability

35 / 100
80 / 100

Formability (cold)

20 / 100
35 / 100

Castability

30 / 100
45 / 100

Brazeability / Solderability

45 / 100
40 / 100

Polishability

65 / 100
70 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Water

900 L/kg108 gal/lb
800 L/kg95.9 gal/lb

Typical Recycled Content

30%
25%

Same in both: Embodied Carbon (primary production) 45 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

231 kN·m/kg
203 kN·m/kg

Specific Stiffness (E / density)

24.2 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

4,365 kJ/m³
3,021 kJ/m³

Thermal Diffusivity

2.7 mm²/s
2.9 mm²/s

Thermal Shock Resistance Index

7
6

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-2SnTi Grade 29

Manufacturing and finishing

CapabilityTi-6Al-6V-2SnTi Grade 29
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

Ti-6Al-6V-2Sn vs Ti Grade 29 — frequently asked

Is Ti-6Al-6V-2Sn stronger than Ti Grade 29?

Yes. Ti-6Al-6V-2Sn has a typical yield strength of 980 MPa (142 ksi) against 830 MPa (120 ksi) for Ti Grade 29 — about 18% more. Tensile strength is 1,050 MPa (152 ksi) vs 900 MPa (131 ksi).

Which is cheaper, Ti-6Al-6V-2Sn or Ti Grade 29?

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, Ti-6Al-6V-2Sn or Ti Grade 29?

Ti Grade 29. Its weldability rates very good (80/100) against fair (35/100) for Ti-6Al-6V-2Sn.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti-6Al-6V-2Sn and Ti Grade 29 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.