Stainless Steel S82031 Annealed vs S82031-CD
Stainless Steel · S82031 temper comparison
S82031 Annealed and S82031-CD are two conditions of the same stainless steel grade, S82031: Annealed versus CD (cold drawn). The chemistry is identical, so every difference below comes from the condition. S82031-CD is the stronger of the two: yield strength 750 MPa (109 ksi) against 610 MPa (88.5 ksi) for S82031 Annealed, about 23% more; tensile strength follows at 900 MPa (131 ksi) vs 780 MPa (113 ksi). In exchange, S82031 Annealed is the more ductile: elongation 33% versus 20% for S82031-CD, and S82031-CD is harder (290 HB vs 245 HB).
S82031 AnnealedChoose it when the part is bent, formed or impact-loaded.
S82031-CDChoose it when strength drives the design.
S82031 Annealed vs S82031-CD: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 99 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,450°C2,642 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 15 W/m·K8.7 BTU/hr·ft·°F · Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 275 J/g118 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 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: Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 190 L/kg22.8 gal/lb · Typical Recycled Content 70%
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.
S82031 Annealed vs S82031-CD — frequently asked
Is S82031-CD stronger than S82031 Annealed?
Yes. S82031-CD has a typical yield strength of 750 MPa (109 ksi) against 610 MPa (88.5 ksi) for S82031 Annealed — about 23% more. Tensile strength is 900 MPa (131 ksi) vs 780 MPa (113 ksi).
Which condition does FabDigit quote by default, Annealed or CD?
Annealed is the default S82031 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, S82031 Annealed or S82031-CD?
S82031-CD, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for S82031 Annealed.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S82031 Annealed and S82031-CD 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.