Stainless Steel 440C Annealed vs 440C Annealed + Cold Drawn
Stainless Steel · 440C temper comparison
440C Annealed and 440C Annealed + Cold Drawn are two conditions of the same stainless steel grade, 440C: Annealed versus Annealed + Cold Drawn (cold-finished bar, annealed then lightly drawn/ground). The chemistry is identical, so every difference below comes from the condition. 440C Annealed + Cold Drawn is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 450 MPa (65.3 ksi) for 440C Annealed, about 38% more; tensile strength follows at 860 MPa (125 ksi) vs 760 MPa (110 ksi). In exchange, 440C Annealed is the more ductile: elongation 14% versus 10% for 440C Annealed + Cold Drawn, and 440C Annealed + Cold Drawn is harder (280 HB vs 250 HB).
440C AnnealedChoose it when the part is bent, formed or impact-loaded.
440C Annealed + Cold DrawnChoose it when strength drives the design.
440C Annealed vs 440C Annealed + Cold Drawn: 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.
440C Annealed440C Annealed + Cold Drawn
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, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.28
Physical
Density and transition temperatures.
Same in both: Density 7.68 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,370°C2,498 °F · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 24.2 W/m·K14 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.2 µm/m·K5.7 µin/in·°F · Latent Heat of Fusion 265 J/g114 BTU/lb · Max Service Temperature (continuous) 425°C797 °F · Min Service Temperature -50°C-58 °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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V · Corrosion Resistance 42 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 45 / 100 · Machinability Rating (AISI 1212 = 100 %) 40% · Weldability 12 / 100 · Brazeability / Solderability 45 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 4.3 kg CO₂/kg · Embodied Water 150 L/kg18 gal/lb · Typical Recycled Content 60%
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.
440C Annealed vs 440C Annealed + Cold Drawn — frequently asked
Is 440C Annealed + Cold Drawn stronger than 440C Annealed?
Yes. 440C Annealed + Cold Drawn has a typical yield strength of 620 MPa (89.9 ksi) against 450 MPa (65.3 ksi) for 440C Annealed — about 38% more. Tensile strength is 860 MPa (125 ksi) vs 760 MPa (110 ksi).
Which condition does FabDigit quote by default, Annealed or Annealed + Cold Drawn?
Annealed is the default 440C 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.
When should I choose 440C Annealed over 440C Annealed + Cold Drawn?
Pick 440C Annealed when the part is bent, formed or impact-loaded. Pick 440C Annealed + Cold Drawn when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 440C Annealed and 440C Annealed + Cold Drawn 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.