Stainless Steel S40920 Annealed vs S40920 Cold Worked
Stainless Steel · S40920 temper comparison
S40920 Annealed and S40920 Cold Worked are two conditions of the same stainless steel grade, S40920: Annealed versus Cold Worked. The chemistry is identical, so every difference below comes from the condition. S40920 Cold Worked is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 250 MPa (36.3 ksi) for S40920 Annealed, about 80% more; tensile strength follows at 550 MPa (79.8 ksi) vs 440 MPa (63.8 ksi). In exchange, S40920 Annealed is the more ductile: elongation 32% versus 12% for S40920 Cold Worked, and S40920 Cold Worked is harder (190 HB vs 140 HB). S40920 Annealed runs hotter in service (675°C vs 500°C continuous).
S40920 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S40920 Cold WorkedChoose it when strength drives the design.
S40920 Annealed vs S40920 Cold Worked: 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.
S40920 AnnealedS40920 Cold Worked
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.3 · Fracture Toughness (K_IC) 80 MPa·√m72.8 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 24.9 W/m·K14.4 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 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 60 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 40 MJ/kg17,197 BTU/lb · Embodied Carbon (primary production) 2.9 kg CO₂/kg · Embodied Water 90 L/kg10.8 gal/lb · Typical Recycled Content 65%
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.
S40920 Annealed vs S40920 Cold Worked — frequently asked
Is S40920 Cold Worked stronger than S40920 Annealed?
Yes. S40920 Cold Worked has a typical yield strength of 450 MPa (65.3 ksi) against 250 MPa (36.3 ksi) for S40920 Annealed — about 80% more. Tensile strength is 550 MPa (79.8 ksi) vs 440 MPa (63.8 ksi).
Which condition does FabDigit quote by default, Annealed or Cold Worked?
Annealed is the default S40920 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, S40920 Annealed or S40920 Cold Worked?
S40920 Cold Worked, by a small margin. Both rate good for machinability — 60/100 against 55/100 for S40920 Annealed; for welding the order is S40920 Annealed first (very good, 80/100) then S40920 Cold Worked (very good, 75/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in S40920 Annealed and S40920 Cold Worked 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.