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Titanium C-1 vs Grade Ti-Pd17

Titanium · grade comparison

Titanium C-1 and Grade Ti-Pd17 are both titanium grades. Grade Ti-Pd17 is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 210 MPa (30.5 ksi) for C-1, about 12% more; tensile strength follows at 330 MPa (47.9 ksi) vs 300 MPa (43.5 ksi). In exchange, C-1 is the more ductile: elongation 20% versus 18% for Grade Ti-Pd17, and Grade Ti-Pd17 is harder (150 HB vs 120 HB). C-1 conducts electricity better (3.6 % IACS vs 3.1 % IACS).

C-1Choose it when the part is bent, formed or impact-loaded.

Grade Ti-Pd17Choose it when strength drives the design.

C-1 vs Grade Ti-Pd17: properties

C-1Grade Ti-Pd17

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

108 GPa15.7 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

300 MPa43.5 ksi
330 MPa47.9 ksi

Yield Strength (0.2% offset)

210 MPa30.5 ksi
235 MPa34.1 ksi

Elongation at Break

20%
18%

Reduction in Area

30%
32%

Compressive Strength

220 MPa31.9 ksi
300 MPa43.5 ksi

Shear Strength

210 MPa30.5 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

145 MPa21 ksi
170 MPa24.7 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
80 MPa·√m72.8 ksi·√in

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
38 J28 ft·lbf

Hardness, Brinell

120 HB
150 HB

Hardness, Rockwell B

65 HRB
80 HRB

Hardness, Vickers

130 HV
155 HV

Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Shear Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 4.51 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,660°C3,020 °F · Liquidus Temperature 1,670°C3,038 °F

Thermal

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

Thermal Conductivity

17 W/m·K9.8 BTU/hr·ft·°F
17.5 W/m·K10.1 BTU/hr·ft·°F

Latent Heat of Fusion

325 J/g140 BTU/lb
295 J/g127 BTU/lb

Min Service Temperature

-250°C-418 °F
-196°C-321 °F

Same in both: Specific Heat Capacity 523 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Max Service Temperature (continuous) 300°C572 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
3.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
5.6×10⁻⁷ Ω·m22 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
97 / 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

42 / 100
40 / 100

Weldability

88 / 100
85 / 100

Formability (cold)

60 / 100
30 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 35% · Castability 65 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

640 MJ/kg275,151 BTU/lb
650 MJ/kg279,450 BTU/lb

Embodied Water

700 L/kg83.9 gal/lb
1,500 L/kg180 gal/lb

Typical Recycled Content

30%
35%

Same in both: Embodied Carbon (primary production) 40 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
73 kN·m/kg

Modulus of Resilience

214 kJ/m³
268 kJ/m³

Thermal Diffusivity

7.2 mm²/s
7.4 mm²/s

Thermal Shock Resistance Index

6
7

Same in both: Specific Stiffness (E / density) 22.8 MN·m/kg

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 scaleC-1Grade Ti-Pd17

Manufacturing and finishing

CapabilityC-1Grade Ti-Pd17
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

C-1 vs Grade Ti-Pd17 — frequently asked

Is Grade Ti-Pd17 stronger than C-1?

Yes. Grade Ti-Pd17 has a typical yield strength of 235 MPa (34.1 ksi) against 210 MPa (30.5 ksi) for C-1 — about 12% more. Tensile strength is 330 MPa (47.9 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, C-1 or Grade Ti-Pd17?

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 C-1 over Grade Ti-Pd17?

Pick C-1 when the part is bent, formed or impact-loaded. Pick Grade Ti-Pd17 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C-1 and Grade Ti-Pd17 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.