Stainless Steel 440A Annealed vs 440A Cold Drawn
Stainless Steel · 440A temper comparison
440A Annealed and 440A Cold Drawn are two conditions of the same stainless steel grade, 440A: Annealed versus Cold Drawn. The chemistry is identical, so every difference below comes from the condition. 440A Cold Drawn is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 415 MPa (60.2 ksi) for 440A Annealed, about 49% more; tensile strength follows at 830 MPa (120 ksi) vs 725 MPa (105 ksi). In exchange, 440A Annealed is the more ductile: elongation 20% versus 12% for 440A Cold Drawn, and 440A Cold Drawn is harder (250 HB vs 195 HB). 440A Annealed runs hotter in service (760°C vs 400°C continuous).
440A AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
440A Cold DrawnChoose it when strength drives the design.
440A Annealed vs 440A 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.
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 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 150 GPa21.8 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 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 24.2 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 270 J/g116 BTU/lb · Min Service Temperature -40°C-40 °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 48 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 45% · Brazeability / Solderability 40 / 100 · Polishability 78 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 5.5 kg CO₂/kg · Embodied Water 130 L/kg15.6 gal/lb · Typical Recycled Content 45%
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.
440A Annealed vs 440A Cold Drawn — frequently asked
Is 440A Cold Drawn stronger than 440A Annealed?
Yes. 440A Cold Drawn has a typical yield strength of 620 MPa (89.9 ksi) against 415 MPa (60.2 ksi) for 440A Annealed — about 49% more. Tensile strength is 830 MPa (120 ksi) vs 725 MPa (105 ksi).
Which condition does FabDigit quote by default, Annealed or Cold Drawn?
Annealed is the default 440A 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 440A Annealed over 440A Cold Drawn?
Pick 440A Annealed when the part is bent, formed or impact-loaded, or when the part sees heat. Pick 440A Cold Drawn when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 440A Annealed and 440A 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.