Nickel Alloy Incoloy 800-CD vs Incoloy 800 SA-HT
Nickel Alloy · Incoloy 800 temper comparison
Incoloy 800-CD and Incoloy 800 SA-HT are two conditions of the same nickel alloy grade, Incoloy 800: CD (cold drawn) versus SA-HT (solution Annealed). The chemistry is identical, so every difference below comes from the condition. Incoloy 800-CD is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 215 MPa (31.2 ksi) for Incoloy 800 SA-HT, about 133% more; tensile strength follows at 720 MPa (104 ksi) vs 550 MPa (79.8 ksi). In exchange, Incoloy 800 SA-HT is the more ductile: elongation 48% versus 25% for Incoloy 800-CD, and Incoloy 800-CD is harder (200 HB vs 125 HB). Incoloy 800 SA-HT runs hotter in service (900°C vs 550°C continuous).
Incoloy 800-CDChoose it when strength drives the design.
Incoloy 800 SA-HTChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Incoloy 800-CD vs Incoloy 800 SA-HT: 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.
Incoloy 800-CDIncoloy 800 SA-HT
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
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 196 GPa28.4 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 200 GPa29 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 7.94 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,357°C2,475 °F · Liquidus Temperature 1,385°C2,525 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 11.5 W/m·K6.6 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.4 µm/m·K8 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 9.9×10⁻⁷ Ω·m39 µΩ·in
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 40 / 100 · Brazeability / Solderability 70 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 95 MJ/kg40,843 BTU/lb · Embodied Carbon (primary production) 7 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 40%
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.
Incoloy 800-CD vs Incoloy 800 SA-HT — frequently asked
Is Incoloy 800-CD stronger than Incoloy 800 SA-HT?
Yes. Incoloy 800-CD has a typical yield strength of 500 MPa (72.5 ksi) against 215 MPa (31.2 ksi) for Incoloy 800 SA-HT — about 133% more. Tensile strength is 720 MPa (104 ksi) vs 550 MPa (79.8 ksi).
Which condition does FabDigit quote by default, CD or SA-HT?
ANN is the default Incoloy 800 condition in the FabDigit quote flow (neither CD nor SA-HT). 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 Incoloy 800-CD over Incoloy 800 SA-HT?
Pick Incoloy 800-CD when strength drives the design. Pick Incoloy 800 SA-HT 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 Incoloy 800-CD and Incoloy 800 SA-HT 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.