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Titanium Grade 13 vs Grade 17

Titanium · grade comparison

Titanium Grade 13 and Grade 17 are both titanium grades. Both yield at about 240 MPa — strength does not separate them. Grade 17 is the more ductile: elongation 32% versus 28% for Grade 13, and Grade 13 is harder (130 HB vs 120 HB).

Grade 17Choose it when the part is bent, formed or impact-loaded.

Grade 13 vs Grade 17: properties

Grade 13Grade 17

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

105 GPa15.2 Msi
103 GPa14.9 Msi

Shear Modulus

40 GPa5.8 Msi
45 GPa6.5 Msi

Tensile Strength (Ultimate)

345 MPa50 ksi
330 MPa47.9 ksi

Elongation at Break

28%
32%

Reduction in Area

45%
58%

Compressive Strength

260 MPa37.7 ksi
300 MPa43.5 ksi

Shear Strength

240 MPa34.8 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
175 MPa25.4 ksi

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

130 HB
120 HB

Hardness, Rockwell B

72 HRB
70 HRB

Hardness, Vickers

140 HV
125 HV

Same in both: Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34 · Yield Strength (0.2% offset) 240 MPa34.8 ksi · Fracture Toughness (K_IC) 80 MPa·√m72.8 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,650°C3,002 °F
1,660°C3,020 °F

Liquidus Temperature

1,675°C3,047 °F
1,670°C3,038 °F

Same in both: Density 4.51 g/cm³0.16 lb/in³

Thermal

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

Specific Heat Capacity

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

Latent Heat of Fusion

365 J/g157 BTU/lb
419 J/g180 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
315°C599 °F

Same in both: Thermal Conductivity 17.5 W/m·K10.1 BTU/hr·ft·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Min Service Temperature -250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
3.3 % IACS

Electrical Resistivity

5.6×10⁻⁷ Ω·m22 µΩ·in
5.2×10⁻⁷ Ω·m20.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
95 / 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
40 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
35%

Formability (cold)

72 / 100
90 / 100

Brazeability / Solderability

40 / 100
45 / 100

Same in both: Weldability 88 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

660 MJ/kg283,749 BTU/lb
700 MJ/kg300,946 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

1,500 L/kg180 gal/lb
900 L/kg108 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
73 kN·m/kg

Specific Stiffness (E / density)

23.3 MN·m/kg
22.8 MN·m/kg

Modulus of Resilience

274 kJ/m³
280 kJ/m³

Thermal Diffusivity

7.5 mm²/s
7.4 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 13Grade 17

Manufacturing and finishing

CapabilityGrade 13Grade 17
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

Grade 13 vs Grade 17 — frequently asked

What is the difference between Grade 13 and Grade 17?

Titanium Grade 13 and Grade 17 are both titanium grades. Both yield at about 240 MPa — strength does not separate them. Grade 17 is the more ductile: elongation 32% versus 28% for Grade 13, and Grade 13 is harder (130 HB vs 120 HB).

Which is cheaper, Grade 13 or Grade 17?

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.

When should I choose Grade 13 over Grade 17?

Pick Grade 17 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 13 and Grade 17 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.