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Titanium Grade 13 vs TA17

Titanium · grade comparison

Titanium Grade 13 and TA17 are both titanium grades. TA17 is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 240 MPa (34.8 ksi) for Grade 13, about 158% more; tensile strength follows at 730 MPa (106 ksi) vs 345 MPa (50 ksi). In exchange, Grade 13 is the more ductile: elongation 28% versus 16% for TA17, and TA17 is harder (235 HB vs 130 HB). TA17 runs hotter in service (350°C vs 300°C continuous) and Grade 13 conducts heat better (17.5 W/m·K vs 9 W/m·K). On the shop floor, Grade 13 machines more easily (fair vs poor).

Grade 13Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

TA17Choose it when strength drives the design, or when the part sees heat.

Grade 13 vs TA17: properties

Grade 13TA17

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

105 GPa15.2 Msi
110 GPa16 Msi

Shear Modulus

40 GPa5.8 Msi
42 GPa6.1 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

345 MPa50 ksi
730 MPa106 ksi

Yield Strength (0.2% offset)

240 MPa34.8 ksi
620 MPa89.9 ksi

Elongation at Break

28%
16%

Reduction in Area

45%
38%

Compressive Strength

260 MPa37.7 ksi
650 MPa94.3 ksi

Shear Strength

240 MPa34.8 ksi
460 MPa66.7 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
400 MPa58 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

130 HB
235 HB

Hardness, Rockwell B

72 HRB
—

Hardness, Vickers

140 HV
245 HV

Hardness, Rockwell C

—
23 HRC

Same in both: Bulk Modulus 110 GPa16 Msi

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

1,675°C3,047 °F
1,700°C3,092 °F

Same in both: Melting Point (Solidus) 1,650°C3,002 °F

Thermal

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

Thermal Conductivity

17.5 W/m·K10.1 BTU/hr·ft·°F
9 W/m·K5.2 BTU/hr·ft·°F

Specific Heat Capacity

520 J/kg·K0.12 BTU/lb·°F
540 J/kg·K0.13 BTU/lb·°F

Latent Heat of Fusion

365 J/g157 BTU/lb
390 J/g168 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
350°C662 °F

Min Service Temperature

-250°C-418 °F
-196°C-321 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°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).

Corrosion Resistance

93 / 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

38 / 100
28 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
28%

Weldability

88 / 100
82 / 100

Formability (cold)

72 / 100
58 / 100

Polishability

70 / 100
65 / 100

Castability

—
25 / 100

Same in both: Brazeability / Solderability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

660 MJ/kg283,749 BTU/lb
650 MJ/kg279,450 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
40 kg CO₂/kg

Embodied Water

1,500 L/kg180 gal/lb
350 L/kg41.9 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

76 kN·m/kg
163 kN·m/kg

Specific Stiffness (E / density)

23.3 MN·m/kg
24.6 MN·m/kg

Modulus of Resilience

274 kJ/m³
1,747 kJ/m³

Thermal Diffusivity

7.5 mm²/s
3.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 13TA17

Manufacturing and finishing

CapabilityGrade 13TA17
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

Grade 13 vs TA17 — frequently asked

Is TA17 stronger than Grade 13?

Yes. TA17 has a typical yield strength of 620 MPa (89.9 ksi) against 240 MPa (34.8 ksi) for Grade 13 — about 158% more. Tensile strength is 730 MPa (106 ksi) vs 345 MPa (50 ksi).

Which is cheaper, Grade 13 or TA17?

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 13 or TA17?

Grade 13. Its machinability rates fair (38/100) against poor (28/100) for TA17; for welding the order is Grade 13 first (excellent, 88/100) then TA17 (very good, 82/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 13 and TA17 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.