Stainless Steel N08320-CD vs N08320 HF-ANN
Stainless Steel · N08320 temper comparison
N08320-CD and N08320 HF-ANN are two conditions of the same stainless steel grade, N08320: CD (cold drawn) versus HF-ANN (hot Finished + Annealed). The chemistry is identical, so every difference below comes from the condition. N08320-CD is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 255 MPa (37 ksi) for N08320 HF-ANN, about 116% more; tensile strength follows at 760 MPa (110 ksi) vs 565 MPa (81.9 ksi). In exchange, N08320 HF-ANN is the more ductile: elongation 45% versus 25% for N08320-CD, and N08320-CD is harder (220 HB vs 150 HB).
N08320-CDChoose it when strength drives the design.
N08320 HF-ANNChoose it when the part is bent, formed or impact-loaded.
N08320-CD vs N08320 HF-ANN: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless steel 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 stainless steel 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)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 196 GPa28.4 Msi · Shear Modulus 76 GPa11 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Charpy V-Notch Impact (RT) 200 J148 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 8.08 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,370°C2,498 °F · Liquidus Temperature 1,400°C2,552 °F
Thermal
How each material carries heat and how hot it can run.
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) 14.6 µm/m·K8.1 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 1.7 % IACS · Electrical Resistivity 1.02×10⁻⁶ Ω·m40.2 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.12 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 80 / 100 · Brazeability / Solderability 55 / 100 · Polishability 68 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 6.2 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 40%
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
N08320-CD vs N08320 HF-ANN — frequently asked
Is N08320-CD stronger than N08320 HF-ANN?
Yes. N08320-CD has a typical yield strength of 550 MPa (79.8 ksi) against 255 MPa (37 ksi) for N08320 HF-ANN — about 116% more. Tensile strength is 760 MPa (110 ksi) vs 565 MPa (81.9 ksi).
Which condition does FabDigit quote by default, CD or HF-ANN?
Annealed is the default N08320 condition in the FabDigit quote flow (neither CD nor HF-ANN). 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, N08320-CD or N08320 HF-ANN?
N08320-CD, by a small margin. Both rate poor for machinability — 33/100 against 28/100 for N08320 HF-ANN.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N08320-CD and N08320 HF-ANN 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.