Stainless Steel S44401 Annealed vs S44401-CD
Stainless Steel · S44401 temper comparison
S44401 Annealed and S44401-CD are two conditions of the same stainless steel grade, S44401: Annealed versus CD (cold drawn). The chemistry is identical, so every difference below comes from the condition. S44401-CD is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 340 MPa (49.3 ksi) for S44401 Annealed, about 41% more; tensile strength follows at 590 MPa (85.6 ksi) vs 500 MPa (72.5 ksi). In exchange, S44401 Annealed is the more ductile: elongation 30% versus 18% for S44401-CD, and S44401-CD is harder (200 HB vs 165 HB). S44401 Annealed runs hotter in service (300°C vs 250°C continuous).
S44401 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S44401-CDChoose it when strength drives the design.
S44401 Annealed vs S44401-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
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 160 GPa23.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °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 23 W/m·K13.3 BTU/hr·ft·°F · Specific Heat Capacity 430 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 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 2.8 % IACS · Electrical Resistivity 6.2×10⁻⁷ Ω·m24.4 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 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 65 / 100 · Polishability 72 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 120 L/kg14.4 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.
S44401 Annealed vs S44401-CD — frequently asked
Is S44401-CD stronger than S44401 Annealed?
Yes. S44401-CD has a typical yield strength of 480 MPa (69.6 ksi) against 340 MPa (49.3 ksi) for S44401 Annealed — about 41% more. Tensile strength is 590 MPa (85.6 ksi) vs 500 MPa (72.5 ksi).
Which condition does FabDigit quote by default, Annealed or CD?
Annealed is the default S44401 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 S44401 Annealed over S44401-CD?
Pick S44401 Annealed when the part is bent, formed or impact-loaded, or when the part sees heat. Pick S44401-CD when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S44401 Annealed and S44401-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.