Nickel Alloy N06255-CD vs N06255 HF-A
Nickel Alloy · N06255 temper comparison
N06255-CD and N06255 HF-A are two conditions of the same nickel alloy grade, N06255: CD (cold drawn) versus HF-A (hot finished and solution annealed). The chemistry is identical, so every difference below comes from the condition. N06255-CD is the stronger of the two: yield strength 700 MPa (102 ksi) against 340 MPa (49.3 ksi) for N06255 HF-A, about 106% more; tensile strength follows at 950 MPa (138 ksi) vs 730 MPa (106 ksi). In exchange, N06255 HF-A is the more ductile: elongation 50% versus 25% for N06255-CD, and N06255-CD is harder (290 HB vs 185 HB). N06255 HF-A runs hotter in service (650°C vs 480°C continuous).
N06255-CDChoose it when strength drives the design.
N06255 HF-AChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
N06255-CD vs N06255 HF-A: 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
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 171 GPa24.8 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 8.6 g/cm³0.31 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.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 10 W/m·K5.8 BTU/hr·ft·°F · Specific Heat Capacity 425 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.4 µm/m·K6.9 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) -0.05 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 60 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 140 MJ/kg60,189 BTU/lb · Embodied Carbon (primary production) 13 kg CO₂/kg · Embodied Water 400 L/kg47.9 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.
N06255-CD vs N06255 HF-A — frequently asked
Is N06255-CD stronger than N06255 HF-A?
Yes. N06255-CD has a typical yield strength of 700 MPa (102 ksi) against 340 MPa (49.3 ksi) for N06255 HF-A — about 106% more. Tensile strength is 950 MPa (138 ksi) vs 730 MPa (106 ksi).
Which condition does FabDigit quote by default, CD or HF-A?
SA is the default N06255 condition in the FabDigit quote flow (neither CD nor HF-A). 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, N06255-CD or N06255 HF-A?
N06255 HF-A. Its weldability rates excellent (85/100) against very good (78/100) for N06255-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N06255-CD and N06255 HF-A 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.