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Cobalt-Chrome Alloy F75-HIP vs F75 Solution Annealed

Cobalt-Chrome Alloy · F75 temper comparison

F75-HIP and F75 Solution Annealed are two conditions of the same cobalt-chrome alloy grade, F75: HIP (hot isostatic pressed) versus Solution Annealed. The chemistry is identical, so every difference below comes from the condition. F75-HIP is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for F75 Solution Annealed, about 25% more; tensile strength follows at 1,000 MPa (145 ksi) vs 760 MPa (110 ksi). F75-HIP is the more ductile: elongation 20% versus 16% for F75 Solution Annealed, and F75-HIP is harder (32 HRC vs 28 HRC).

F75-HIPChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

F75-HIP vs F75 Solution Annealed: properties

F75-HIPF75 Solution Annealed

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

225 GPa32.6 Msi
220 GPa31.9 Msi

Tensile Strength (Ultimate)

1,000 MPa145 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

650 MPa94.3 ksi
520 MPa75.4 ksi

Elongation at Break

20%
16%

Reduction in Area

22%
18%

Fatigue Strength (Endurance Limit)

480 MPa69.6 ksi
290 MPa42.1 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
30 J22.1 ft·lbf

Hardness, Rockwell C

32 HRC
28 HRC

Hardness, Vickers

330 HV
300 HV

Same in both: Shear Modulus 85 GPa12.3 Msi · Bulk Modulus 183 GPa26.5 Msi · Poisson's Ratio 0.3 · Compressive Strength 1,500 MPa218 ksi · Shear Strength 500 MPa72.5 ksi · Hardness, Brinell 300 HB

Physical

Density and transition temperatures.

Density

8.32 g/cm³0.3 lb/in³
8.3 g/cm³0.3 lb/in³

Same in both: Melting Point (Solidus) 1,330°C2,426 °F · Liquidus Temperature 1,410°C2,570 °F

Thermal

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

Same in both: Thermal Conductivity 14 W/m·K8.1 BTU/hr·ft·°F · Specific Heat Capacity 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 600°C1,112 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1.9 % IACS · Electrical Resistivity 9.1×10⁻⁷ Ω·m35.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

90 / 100
89 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

13 / 100
15 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 10% · Weldability 25 / 100 · Formability (cold) 10 / 100 · Castability 78 / 100 · Brazeability / Solderability 45 / 100 · Polishability 88 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 150 MJ/kg64,488 BTU/lb · Embodied Carbon (primary production) 11 kg CO₂/kg · Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 25%

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.

5007001,0001,5002,0008.28.48.68.89Density (g/cm³)Yield strength (MPa) — log scaleF75

F75-HIP vs F75 Solution Annealed — frequently asked

Is F75-HIP stronger than F75 Solution Annealed?

Yes. F75-HIP has a typical yield strength of 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for F75 Solution Annealed — about 25% more. Tensile strength is 1,000 MPa (145 ksi) vs 760 MPa (110 ksi).

Which condition does FabDigit quote by default, HIP or Solution Annealed?

As Cast is the default F75 condition in the FabDigit quote flow (neither HIP nor Solution Annealed). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

When should I choose F75-HIP over F75 Solution Annealed?

Pick F75-HIP when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in F75-HIP and F75 Solution Annealed 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.