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Titanium Grade 16 vs Ti-5Al-5Sn-2Zr-2Mo

Titanium · grade comparison

Titanium Grade 16 and Ti-5Al-5Sn-2Zr-2Mo are both titanium grades. Ti-5Al-5Sn-2Zr-2Mo is the stronger of the two: yield strength 950 MPa (138 ksi) against 380 MPa (55.1 ksi) for Grade 16, about 150% more; tensile strength follows at 1,035 MPa (150 ksi) vs 485 MPa (70.3 ksi). In exchange, Grade 16 is the more ductile: elongation 28% versus 12% for Ti-5Al-5Sn-2Zr-2Mo, and Ti-5Al-5Sn-2Zr-2Mo is harder (320 HB vs 150 HB). Ti-5Al-5Sn-2Zr-2Mo is stiffer (117 GPa vs 105 GPa) and Ti-5Al-5Sn-2Zr-2Mo runs hotter in service (480°C vs 315°C continuous). On the shop floor, Grade 16 machines more easily (fair vs poor) and Grade 16 welds better (excellent vs good).

Grade 16Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

Ti-5Al-5Sn-2Zr-2MoChoose it when strength drives the design, or when the part sees heat.

Grade 16 vs Ti-5Al-5Sn-2Zr-2Mo: properties

Grade 16Ti-5Al-5Sn-2Zr-2Mo

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

105 GPa15.2 Msi
117 GPa17 Msi

Shear Modulus

45 GPa6.5 Msi
44 GPa6.4 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

485 MPa70.3 ksi
1,035 MPa150 ksi

Yield Strength (0.2% offset)

380 MPa55.1 ksi
950 MPa138 ksi

Elongation at Break

28%
12%

Reduction in Area

45%
25%

Compressive Strength

400 MPa58 ksi
1,000 MPa145 ksi

Shear Strength

310 MPa45 ksi
660 MPa95.7 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
550 MPa79.8 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
14 J10.3 ft·lbf

Hardness, Brinell

150 HB
320 HB

Hardness, Rockwell B

80 HRB
—

Hardness, Vickers

160 HV
335 HV

Hardness, Rockwell C

—
34 HRC

Same in both: Bulk Modulus 110 GPa16 Msi

Physical

Density and transition temperatures.

Density

4.51 g/cm³0.16 lb/in³
4.55 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,660°C3,020 °F
1,600°C2,912 °F

Liquidus Temperature

1,670°C3,038 °F
1,660°C3,020 °F

Thermal

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

Thermal Conductivity

17 W/m·K9.8 BTU/hr·ft·°F
7.5 W/m·K4.3 BTU/hr·ft·°F

Specific Heat Capacity

523 J/kg·K0.12 BTU/lb·°F
530 J/kg·K0.13 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

295 J/g127 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

315°C599 °F
480°C896 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
1.1 % IACS

Electrical Resistivity

5.6×10⁻⁷ Ω·m22 µΩ·in
1.6×10⁻⁶ Ω·m63 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.1 V

Corrosion Resistance

96 / 100
88 / 100

Manufacturability

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

Machinability

38 / 100
18 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
18%

Weldability

88 / 100
55 / 100

Formability (cold)

75 / 100
22 / 100

Polishability

70 / 100
60 / 100

Castability

—
35 / 100

Same in both: Brazeability / Solderability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

620 MJ/kg266,552 BTU/lb
700 MJ/kg300,946 BTU/lb

Embodied Carbon (primary production)

38 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
1,200 L/kg144 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

108 kN·m/kg
227 kN·m/kg

Specific Stiffness (E / density)

23.3 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

688 kJ/m³
3,857 kJ/m³

Thermal Diffusivity

7.2 mm²/s
3.1 mm²/s

Thermal Shock Resistance Index

9
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 scaleGrade 16Ti-5Al-5Sn-2Zr-2Mo

Manufacturing and finishing

CapabilityGrade 16Ti-5Al-5Sn-2Zr-2Mo
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

Grade 16 vs Ti-5Al-5Sn-2Zr-2Mo — frequently asked

Is Ti-5Al-5Sn-2Zr-2Mo stronger than Grade 16?

Yes. Ti-5Al-5Sn-2Zr-2Mo has a typical yield strength of 950 MPa (138 ksi) against 380 MPa (55.1 ksi) for Grade 16 — about 150% more. Tensile strength is 1,035 MPa (150 ksi) vs 485 MPa (70.3 ksi).

Which is cheaper, Grade 16 or Ti-5Al-5Sn-2Zr-2Mo?

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 is easier to machine, Grade 16 or Ti-5Al-5Sn-2Zr-2Mo?

Grade 16. Its machinability rates fair (38/100) against poor (18/100) for Ti-5Al-5Sn-2Zr-2Mo; for welding the order is Grade 16 first (excellent, 88/100) then Ti-5Al-5Sn-2Zr-2Mo (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 16 and Ti-5Al-5Sn-2Zr-2Mo 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.