Stainless Steel N08031-CD vs N08031 CR-SA
Stainless Steel · N08031 temper comparison
N08031-CD and N08031 CR-SA are two conditions of the same stainless steel grade, N08031: CD (cold drawn) versus CR-SA. The chemistry is identical, so every difference below comes from the condition. N08031-CD is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 380 MPa (55.1 ksi) for N08031 CR-SA, about 45% more; tensile strength follows at 800 MPa (116 ksi) vs 720 MPa (104 ksi). In exchange, N08031 CR-SA is the more ductile: elongation 48% versus 30% for N08031-CD, and N08031-CD is harder (230 HB vs 185 HB). N08031 CR-SA runs hotter in service (450°C vs 400°C continuous).
N08031-CDChoose it when strength drives the design.
N08031 CR-SAChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
N08031-CD vs N08031 CR-SA: 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 162 GPa23.5 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8.02 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,320°C2,408 °F · Liquidus Temperature 1,360°C2,480 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
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) 14.5 µm/m·K8.1 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 µΩ·in
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)
Polishability
Same in both: Brazeability / Solderability 40 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 8 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%
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.
N08031-CD vs N08031 CR-SA — frequently asked
Is N08031-CD stronger than N08031 CR-SA?
Yes. N08031-CD has a typical yield strength of 550 MPa (79.8 ksi) against 380 MPa (55.1 ksi) for N08031 CR-SA — about 45% more. Tensile strength is 800 MPa (116 ksi) vs 720 MPa (104 ksi).
Which condition does FabDigit quote by default, CD or CR-SA?
SA is the default N08031 condition in the FabDigit quote flow (neither CD nor CR-SA). 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, N08031-CD or N08031 CR-SA?
N08031-CD, by a small margin. Both rate poor for machinability — 24/100 against 19/100 for N08031 CR-SA; for welding the order is N08031 CR-SA first (very good, 70/100) then N08031-CD (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in N08031-CD and N08031 CR-SA 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.