Nickel Alloy Inconel 693-CD vs Inconel 693-HF
Nickel Alloy · Inconel 693 temper comparison
Inconel 693-CD and Inconel 693-HF are two conditions of the same nickel alloy grade, Inconel 693: CD (cold drawn) versus HF (hot Finished). The chemistry is identical, so every difference below comes from the condition. Inconel 693-CD is the stronger of the two: yield strength 700 MPa (102 ksi) against 380 MPa (55.1 ksi) for Inconel 693-HF, about 84% more; tensile strength follows at 950 MPa (138 ksi) vs 780 MPa (113 ksi). In exchange, Inconel 693-HF is the more ductile: elongation 45% versus 25% for Inconel 693-CD, and Inconel 693-CD is harder (270 HB vs 190 HB). Inconel 693-HF runs hotter in service (1,100°C vs 600°C continuous).
Inconel 693-CDChoose it when strength drives the design.
Inconel 693-HFChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Inconel 693-CD vs Inconel 693-HF: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all nickel 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 nickel 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 167 GPa24.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.63 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,343°C2,449 °F · Liquidus Temperature 1,392°C2,538 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 10.6 W/m·K6.1 BTU/hr·ft·°F · Specific Heat Capacity 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.6 µm/m·K7 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.4 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 35 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 160 MJ/kg68,788 BTU/lb · Embodied Carbon (primary production) 13 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 35%
Strength versus weight
Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Inconel 693-CD vs Inconel 693-HF — frequently asked
Is Inconel 693-CD stronger than Inconel 693-HF?
Yes. Inconel 693-CD has a typical yield strength of 700 MPa (102 ksi) against 380 MPa (55.1 ksi) for Inconel 693-HF — about 84% more. Tensile strength is 950 MPa (138 ksi) vs 780 MPa (113 ksi).
Which condition does FabDigit quote by default, CD or HF?
ANN is the default Inconel 693 condition in the FabDigit quote flow (neither CD nor HF). 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.
Which welds better, Inconel 693-CD or Inconel 693-HF?
Inconel 693-HF. Its weldability rates good (55/100) against fair (50/100) for Inconel 693-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Inconel 693-CD and Inconel 693-HF 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.