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Titanium Ti-6Al-6V-2Sn vs VT3-1

Titanium · grade comparison

Titanium Ti-6Al-6V-2Sn and VT3-1 are both titanium grades. Both yield at about 980 MPa — strength does not separate them. Ti-6Al-6V-2Sn is harder — 340 HB against 320 HB for VT3-1 — which matters for wear surfaces and threads. VT3-1 runs hotter in service (450°C vs 315°C continuous) and VT3-1 conducts heat better (8 W/m·K vs 6.6 W/m·K). On the shop floor, VT3-1 welds better (45 vs 35 out of 100).

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

VT3-1Choose it when the part sees heat, or when it will be welded.

Ti-6Al-6V-2Sn vs VT3-1: properties

Ti-6Al-6V-2SnVT3-1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
115 GPa16.7 Msi

Shear Modulus

42.5 GPa6.2 Msi
44 GPa6.4 Msi

Yield Strength (0.2% offset)

980 MPa142 ksi
950 MPa138 ksi

Elongation at Break

14%
13%

Reduction in Area

30%
35%

Compressive Strength

1,010 MPa146 ksi
1,000 MPa145 ksi

Shear Strength

690 MPa100 ksi
640 MPa92.8 ksi

Fatigue Strength (Endurance Limit)

550 MPa79.8 ksi
500 MPa72.5 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

19 J14 ft·lbf
25 J18.4 ft·lbf

Hardness, Brinell

340 HB
320 HB

Hardness, Rockwell C

36 HRC
34 HRC

Hardness, Vickers

355 HV
335 HV

Same in both: Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.32 · Tensile Strength (Ultimate) 1,050 MPa152 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,690°C3,074 °F
1,600°C2,912 °F

Liquidus Temperature

1,705°C3,101 °F
1,650°C3,002 °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
8 W/m·K4.6 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

365 J/g157 BTU/lb
360 J/g155 BTU/lb

Max Service Temperature (continuous)

315°C599 °F
450°C842 °F

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

Electrical

Conductivity and insulation.

Electrical Resistivity

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

Same in both: Electrical Conductivity 1.1 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.05 V

Corrosion Resistance

82 / 100
85 / 100

Manufacturability

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

Machinability

17 / 100
16 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
18%

Weldability

35 / 100
45 / 100

Castability

30 / 100
25 / 100

Brazeability / Solderability

45 / 100
40 / 100

Polishability

65 / 100
70 / 100

Same in both: Formability (cold) 20 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

45 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

231 kN·m/kg
233 kN·m/kg

Specific Stiffness (E / density)

24.2 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

4,365 kJ/m³
3,924 kJ/m³

Thermal Diffusivity

2.7 mm²/s
3.3 mm²/s

Thermal Shock Resistance Index

7
8

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-2SnVT3-1

Manufacturing and finishing

CapabilityTi-6Al-6V-2SnVT3-1
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 VT3-1 — frequently asked

What is the difference between Ti-6Al-6V-2Sn and VT3-1?

Titanium Ti-6Al-6V-2Sn and VT3-1 are both titanium grades. Both yield at about 980 MPa — strength does not separate them. Ti-6Al-6V-2Sn is harder — 340 HB against 320 HB for VT3-1 — which matters for wear surfaces and threads.

Which is cheaper, Ti-6Al-6V-2Sn or VT3-1?

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 VT3-1?

VT3-1. 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 Ti-6Al-6V-2Sn and VT3-1 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.