Cobalt-Chrome Alloy F75 vs Hiperco 50
Cobalt-Chrome Alloy · grade comparison
Cobalt-Chrome Alloy F75 and Hiperco 50 are both cobalt-chrome alloy grades. F75 is the stronger of the two: yield strength 510 MPa (74 ksi) against 380 MPa (55.1 ksi) for Hiperco 50, about 34% more; tensile strength follows at 720 MPa (104 ksi) vs 655 MPa (95 ksi). F75 is the more ductile: elongation 10% versus 8% for Hiperco 50, and F75 is harder (300 HB vs 190 HB). F75 is stiffer (220 GPa vs 207 GPa) and F75 runs hotter in service (600°C vs 500°C continuous). On the shop floor, Hiperco 50 machines more easily (poor vs not recommended), Hiperco 50 welds better (fair vs poor), and F75 sits in a lower cost tier (premium, $$$) than Hiperco 50 (high, $$$$).
F75Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Hiperco 50Choose it when the part is machined in volume, or when it will be welded.
F75 vs Hiperco 50: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all cobalt-chrome alloy 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 cobalt-chrome alloy 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
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Hardness, Rockwell B
Same in both: Reduction in Area 12% · Fatigue Strength (Endurance Limit) 250 MPa36.3 ksi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
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 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
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 Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every cobalt-chrome alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | F75 | Hiperco 50 |
|---|---|---|
| CNC machining | Yes | — |
| 3D printing | Yes | — |
| Default condition | As Cast | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
| Electropolishing | Yes | — |
| Passivation (Stainless Steel) | Yes | — |
F75 vs Hiperco 50 — frequently asked
Is F75 stronger than Hiperco 50?
Yes. F75 has a typical yield strength of 510 MPa (74 ksi) against 380 MPa (55.1 ksi) for Hiperco 50 — about 34% more. Tensile strength is 720 MPa (104 ksi) vs 655 MPa (95 ksi).
Which is cheaper, F75 or Hiperco 50?
F75 is the lower-cost material: it sits in the premium tier ($$$) while Hiperco 50 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, F75 or Hiperco 50?
Hiperco 50. Its machinability rates poor (25/100) against not recommended (12/100) for F75; for welding the order is Hiperco 50 first (fair, 40/100) then F75 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in F75 and Hiperco 50 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.