Nickel Alloy Ni-Span-C 902-ANN vs Ni-Span-C 902 HF+AGE
Nickel Alloy · Ni-Span-C 902 temper comparison
Ni-Span-C 902-ANN and Ni-Span-C 902 HF+AGE are two conditions of the same nickel alloy grade, Ni-Span-C 902: ANN (annealed) versus HF+AGE (hot Finished + Solution Treated + Aged bar/forging). The chemistry is identical, so every difference below comes from the condition. Ni-Span-C 902 HF+AGE is the stronger of the two: yield strength 655 MPa (95 ksi) against 310 MPa (45 ksi) for Ni-Span-C 902-ANN, about 111% more; tensile strength follows at 1,000 MPa (145 ksi) vs 690 MPa (100 ksi). In exchange, Ni-Span-C 902-ANN is the more ductile: elongation 45% versus 22% for Ni-Span-C 902 HF+AGE, and Ni-Span-C 902 HF+AGE is harder (300 HB vs 165 HB). Ni-Span-C 902 HF+AGE runs hotter in service (250°C vs 200°C continuous). On the shop floor, Ni-Span-C 902-ANN welds better (good vs fair).
Ni-Span-C 902-ANNChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Ni-Span-C 902 HF+AGEChoose it when strength drives the design, or when the part sees heat.
Ni-Span-C 902-ANN vs Ni-Span-C 902 HF+AGE: 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.
Ni-Span-C 902-ANNNi-Span-C 902 HF+AGE
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
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
Same in both: Shear Modulus 69 GPa10 Msi · Bulk Modulus 150 GPa21.8 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 85 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.05 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,440°C2,624 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 502 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8 µm/m·K4.4 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Min Service Temperature -100°C-148 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.4 V · Corrosion Resistance 40 / 100
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 25 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 115 MJ/kg49,441 BTU/lb · Embodied Carbon (primary production) 8 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 25%
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.
Ni-Span-C 902-ANN vs Ni-Span-C 902 HF+AGE — frequently asked
Is Ni-Span-C 902 HF+AGE stronger than Ni-Span-C 902-ANN?
Yes. Ni-Span-C 902 HF+AGE has a typical yield strength of 655 MPa (95 ksi) against 310 MPa (45 ksi) for Ni-Span-C 902-ANN — about 111% more. Tensile strength is 1,000 MPa (145 ksi) vs 690 MPa (100 ksi).
Which condition does FabDigit quote by default, ANN or HF+AGE?
ANN is the default Ni-Span-C 902 condition in the FabDigit quote flow. 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 is easier to machine, Ni-Span-C 902-ANN or Ni-Span-C 902 HF+AGE?
Ni-Span-C 902-ANN, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for Ni-Span-C 902 HF+AGE; for welding the order is Ni-Span-C 902-ANN first (good, 55/100) then Ni-Span-C 902 HF+AGE (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ni-Span-C 902-ANN and Ni-Span-C 902 HF+AGE 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.