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Titanium Ti-17 vs Ti-6-22-22

Titanium · grade comparison

Titanium Ti-17 and Ti-6-22-22 are both titanium grades. Ti-6-22-22 is the stronger of the two: yield strength 1,160 MPa (168 ksi) against 1,075 MPa (156 ksi) for Ti-17, about 8% more; tensile strength follows at 1,240 MPa (180 ksi) vs 1,150 MPa (167 ksi). Ti-17 runs hotter in service (350°C vs 315°C continuous). On the shop floor, Ti-6-22-22 welds better (fair vs poor).

Ti-17Choose it when the part sees heat.

Ti-6-22-22Choose it when strength drives the design, or when it will be welded.

Ti-17 vs Ti-6-22-22: properties

Ti-17Ti-6-22-22

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

112 GPa16.2 Msi
117 GPa17 Msi

Shear Modulus

42.5 GPa6.2 Msi
45 GPa6.5 Msi

Bulk Modulus

104 GPa15.1 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

1,150 MPa167 ksi
1,240 MPa180 ksi

Yield Strength (0.2% offset)

1,075 MPa156 ksi
1,160 MPa168 ksi

Compressive Strength

1,150 MPa167 ksi
1,240 MPa180 ksi

Shear Strength

700 MPa102 ksi
720 MPa104 ksi

Fatigue Strength (Endurance Limit)

600 MPa87 ksi
580 MPa84.1 ksi

Charpy V-Notch Impact (RT)

17 J12.5 ft·lbf
14 J10.3 ft·lbf

Hardness, Rockwell C

37 HRC
38 HRC

Hardness, Vickers

365 HV
375 HV

Same in both: Poisson's Ratio 0.32 · Elongation at Break 10% · Reduction in Area 25% · Fracture Toughness (K_IC) 55 MPa·√m50.1 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,600°C2,912 °F
1,590°C2,894 °F

Same in both: Density 4.65 g/cm³0.17 lb/in³ · Liquidus Temperature 1,650°C3,002 °F

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

9.4 µm/m·K5.2 µin/in·°F
9 µm/m·K5 µin/in·°F

Latent Heat of Fusion

325 J/g140 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

350°C662 °F
315°C599 °F

Min Service Temperature

-100°C-148 °F
-196°C-321 °F

Same in both: Thermal Conductivity 7 W/m·K4 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

—
1 % IACS

Same in both: Electrical Resistivity 1.7×10⁻⁶ Ω·m66.9 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
88 / 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 %)

15%
12%

Weldability

30 / 100
45 / 100

Formability (cold)

15 / 100
18 / 100

Brazeability / Solderability

35 / 100
40 / 100

Polishability

70 / 100
60 / 100

Same in both: Machinability 16 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

680 MJ/kg292,348 BTU/lb
650 MJ/kg279,450 BTU/lb

Embodied Water

500 L/kg59.9 gal/lb
800 L/kg95.9 gal/lb

Typical Recycled Content

20%
25%

Same in both: Embodied Carbon (primary production) 42 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

247 kN·m/kg
267 kN·m/kg

Specific Stiffness (E / density)

24.1 MN·m/kg
25.2 MN·m/kg

Modulus of Resilience

5,159 kJ/m³
5,750 kJ/m³

Same in both: Thermal Diffusivity 3 mm²/s · Thermal Shock Resistance Index 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-17Ti-6-22-22

Manufacturing and finishing

CapabilityTi-17Ti-6-22-22
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

Ti-17 vs Ti-6-22-22 — frequently asked

Is Ti-6-22-22 stronger than Ti-17?

Yes. Ti-6-22-22 has a typical yield strength of 1,160 MPa (168 ksi) against 1,075 MPa (156 ksi) for Ti-17 — about 8% more. Tensile strength is 1,240 MPa (180 ksi) vs 1,150 MPa (167 ksi).

Which is cheaper, Ti-17 or Ti-6-22-22?

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-17 or Ti-6-22-22?

Ti-6-22-22. Its weldability rates fair (45/100) against poor (30/100) for Ti-17.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti-17 and Ti-6-22-22 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.