Nickel Alloy N08221-ANN vs N08221-CW
Nickel Alloy · N08221 temper comparison
N08221-ANN and N08221-CW are two conditions of the same nickel alloy grade, N08221: ANN (annealed) versus CW (cold worked). The chemistry is identical, so every difference below comes from the condition. N08221-CW is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 300 MPa (43.5 ksi) for N08221-ANN, about 117% more; tensile strength follows at 860 MPa (125 ksi) vs 650 MPa (94.3 ksi). In exchange, N08221-ANN is the more ductile: elongation 48% versus 22% for N08221-CW, and N08221-CW is harder (250 HB vs 170 HB).
N08221-ANNChoose it when the part is bent, formed or impact-loaded.
N08221-CWChoose it when strength drives the design.
N08221-ANN vs N08221-CW: 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
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.31 · Shear Strength 430 MPa62.4 ksi · Charpy V-Notch Impact (RT) 200 J148 ft·lbf · Hardness, Rockwell B 87 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.1 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,330°C2,426 °F · Liquidus Temperature 1,385°C2,525 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 11 W/m·K6.4 BTU/hr·ft·°F · Specific Heat Capacity 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.6 µm/m·K7.6 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.5 % IACS · Electrical Resistivity 1.15×10⁻⁶ Ω·m45.3 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
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 15% · Weldability 78 / 100 · Castability 40 / 100 · Brazeability / Solderability 60 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 155 MJ/kg66,638 BTU/lb · Embodied Carbon (primary production) 13 kg CO₂/kg · Embodied Water 320 L/kg38.3 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.
N08221-ANN vs N08221-CW — frequently asked
Is N08221-CW stronger than N08221-ANN?
Yes. N08221-CW has a typical yield strength of 650 MPa (94.3 ksi) against 300 MPa (43.5 ksi) for N08221-ANN — about 117% more. Tensile strength is 860 MPa (125 ksi) vs 650 MPa (94.3 ksi).
Which condition does FabDigit quote by default, ANN or CW?
ANN is the default N08221 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, N08221-ANN or N08221-CW?
N08221-CW, by a small margin. Both rate poor for machinability — 30/100 against 24/100 for N08221-ANN.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N08221-ANN and N08221-CW 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.