Titanium C-4 vs Grade Ti-Pd7B
Titanium · grade comparison
Titanium C-4 and Grade Ti-Pd7B are both titanium grades. C-4 is the stronger of the two: yield strength 530 MPa (76.9 ksi) against 380 MPa (55.1 ksi) for Grade Ti-Pd7B, about 39% more; tensile strength follows at 620 MPa (89.9 ksi) vs 450 MPa (65.3 ksi). In exchange, Grade Ti-Pd7B is the more ductile: elongation 18% versus 12% for C-4, and C-4 is harder (265 HB vs 150 HB). Grade Ti-Pd7B runs hotter in service (400°C vs 300°C continuous) and Grade Ti-Pd7B conducts electricity better (3.3 % IACS vs 2.9 % IACS).
C-4Choose it when strength drives the design.
Grade Ti-Pd7BChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
C-4 vs Grade Ti-Pd7B: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Hardness, Rockwell B
Same in both: Bulk Modulus 110 GPa16 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
Specific Heat Capacity
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Castability
Polishability
Same in both: Weldability 85 / 100 · Brazeability / Solderability 40 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Shock Resistance Index
Same in both: Thermal Diffusivity 7 mm²/s
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.
Manufacturing and finishing
| Capability | C-4 | Grade Ti-Pd7B |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 1 finish: Plasma Spray.
C-4 vs Grade Ti-Pd7B — frequently asked
Is C-4 stronger than Grade Ti-Pd7B?
Yes. C-4 has a typical yield strength of 530 MPa (76.9 ksi) against 380 MPa (55.1 ksi) for Grade Ti-Pd7B — about 39% more. Tensile strength is 620 MPa (89.9 ksi) vs 450 MPa (65.3 ksi).
Which is cheaper, C-4 or Grade Ti-Pd7B?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose C-4 over Grade Ti-Pd7B?
Pick C-4 when strength drives the design. Pick Grade Ti-Pd7B when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C-4 and Grade Ti-Pd7B 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.