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Titanium Ti-10-2-3 vs Ti-15Mo-2.7Nb-3Al-0.2Si

Titanium · grade comparison

Titanium Ti-10-2-3 and Ti-15Mo-2.7Nb-3Al-0.2Si are both titanium grades. Ti-10-2-3 is the stronger of the two: yield strength 930 MPa (135 ksi) against 810 MPa (117 ksi) for Ti-15Mo-2.7Nb-3Al-0.2Si, about 15% more; tensile strength follows at 1,000 MPa (145 ksi) vs 840 MPa (122 ksi). In exchange, Ti-15Mo-2.7Nb-3Al-0.2Si is the more ductile: elongation 18% versus 12% for Ti-10-2-3, and Ti-10-2-3 is harder (32 HRC vs 28 HRC). Ti-10-2-3 is lighter (4.65 g/cm³ vs 4.94 g/cm³ for Ti-15Mo-2.7Nb-3Al-0.2Si) and Ti-10-2-3 is stiffer (110 GPa vs 80 GPa). On the shop floor, Ti-15Mo-2.7Nb-3Al-0.2Si welds better (good vs fair) and Ti-15Mo-2.7Nb-3Al-0.2Si sits in a lower cost tier (high, $$$$) than Ti-10-2-3 (specialty, $$$$$).

Ti-10-2-3Choose it when strength drives the design, or when weight is the constraint.

Ti-15Mo-2.7Nb-3Al-0.2SiChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Ti-10-2-3 vs Ti-15Mo-2.7Nb-3Al-0.2Si: properties

Ti-10-2-3Ti-15Mo-2.7Nb-3Al-0.2Si

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
80 GPa11.6 Msi

Shear Modulus

41 GPa5.9 Msi
30 GPa4.4 Msi

Bulk Modulus

104 GPa15.1 Msi
79 GPa11.5 Msi

Poisson's Ratio

0.32
0.33

Tensile Strength (Ultimate)

1,000 MPa145 ksi
840 MPa122 ksi

Yield Strength (0.2% offset)

930 MPa135 ksi
810 MPa117 ksi

Elongation at Break

12%
18%

Reduction in Area

25%
40%

Compressive Strength

1,000 MPa145 ksi
840 MPa122 ksi

Shear Strength

620 MPa89.9 ksi
520 MPa75.4 ksi

Fatigue Strength (Endurance Limit)

480 MPa69.6 ksi
450 MPa65.3 ksi

Fracture Toughness (K_IC)

85 MPa·√m77.4 ksi·√in
65 MPa·√m59.2 ksi·√in

Hardness, Rockwell C

32 HRC
28 HRC

Hardness, Vickers

320 HV
285 HV

Physical

Density and transition temperatures.

Density

4.65 g/cm³0.17 lb/in³
4.94 g/cm³0.18 lb/in³

Same in both: Melting Point (Solidus) 1,600°C2,912 °F · Liquidus Temperature 1,650°C3,002 °F

Thermal

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

Thermal Conductivity

7.8 W/m·K4.5 BTU/hr·ft·°F
7.6 W/m·K4.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

9 µm/m·K5 µin/in·°F
7.7 µm/m·K4.3 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

300°C572 °F
480°C896 °F

Min Service Temperature

-50°C-58 °F
-70°C-94 °F

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.2 % IACS
1.3 % IACS

Electrical Resistivity

1.4×10⁻⁶ Ω·m55.1 µΩ·in
1.35×10⁻⁶ Ω·m53.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
92 / 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 Rating (AISI 1212 = 100 %)

18%
15%

Weldability

40 / 100
60 / 100

Formability (cold)

30 / 100
75 / 100

Castability

25 / 100
30 / 100

Brazeability / Solderability

35 / 100
45 / 100

Same in both: Machinability 20 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

650 MJ/kg279,450 BTU/lb
700 MJ/kg300,946 BTU/lb

Embodied Carbon (primary production)

40 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
550 L/kg65.9 gal/lb

Typical Recycled Content

25%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

215 kN·m/kg
170 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
16.2 MN·m/kg

Modulus of Resilience

3,931 kJ/m³
4,101 kJ/m³

Thermal Diffusivity

3.4 mm²/s
3.1 mm²/s

Thermal Shock Resistance Index

8
10

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-10-2-3Ti-15Mo-2.7Nb-3Al-0.2Si

Manufacturing and finishing

CapabilityTi-10-2-3Ti-15Mo-2.7Nb-3Al-0.2Si
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$$ Specialty$$$$ High
Min. machined wall1 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Anodizing Type IIYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
CrNYes—
DLCYes—
ElectropolishingYes—
HVOF CoatingYes—
MoS2Yes—
Multilayer CVDYes—
TiAlNYes—
TiB2Yes—
TiCNYes—
TiNYes—
WC/CYes—

They share 1 finish: Plasma Spray.

Ti-10-2-3 vs Ti-15Mo-2.7Nb-3Al-0.2Si — frequently asked

Is Ti-10-2-3 stronger than Ti-15Mo-2.7Nb-3Al-0.2Si?

Yes. Ti-10-2-3 has a typical yield strength of 930 MPa (135 ksi) against 810 MPa (117 ksi) for Ti-15Mo-2.7Nb-3Al-0.2Si — about 15% more. Tensile strength is 1,000 MPa (145 ksi) vs 840 MPa (122 ksi).

Which is cheaper, Ti-10-2-3 or Ti-15Mo-2.7Nb-3Al-0.2Si?

Ti-15Mo-2.7Nb-3Al-0.2Si is the lower-cost material: it sits in the high tier ($$$$) while Ti-10-2-3 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, Ti-10-2-3 or Ti-15Mo-2.7Nb-3Al-0.2Si?

Ti-15Mo-2.7Nb-3Al-0.2Si. Its weldability rates good (60/100) against fair (40/100) for Ti-10-2-3.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti-10-2-3 and Ti-15Mo-2.7Nb-3Al-0.2Si 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.