Stainless Steel S44660 Annealed vs S44660-CD
Stainless Steel · S44660 temper comparison
S44660 Annealed and S44660-CD are two conditions of the same stainless steel grade, S44660: Annealed versus CD (cold drawn). The chemistry is identical, so every difference below comes from the condition. S44660-CD is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 500 MPa (72.5 ksi) for S44660 Annealed, about 30% more; tensile strength follows at 750 MPa (109 ksi) vs 620 MPa (89.9 ksi). In exchange, S44660 Annealed is the more ductile: elongation 27% versus 14% for S44660-CD, and S44660-CD is harder (240 HB vs 190 HB). S44660 Annealed runs hotter in service (300°C vs 250°C continuous).
S44660 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S44660-CDChoose it when strength drives the design.
S44660 Annealed vs S44660-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 7.7 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 15 W/m·K8.7 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 µin/in·°F · Min Service Temperature -30°C-22 °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) -0.12 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 55 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 68 MJ/kg29,235 BTU/lb · Embodied Carbon (primary production) 4.8 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 50%
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.
S44660 Annealed vs S44660-CD — frequently asked
Is S44660-CD stronger than S44660 Annealed?
Yes. S44660-CD has a typical yield strength of 650 MPa (94.3 ksi) against 500 MPa (72.5 ksi) for S44660 Annealed — about 30% more. Tensile strength is 750 MPa (109 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, Annealed or CD?
Annealed is the default S44660 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, S44660 Annealed or S44660-CD?
S44660 Annealed, by a small margin. Both rate fair for machinability — 42/100 against 37/100 for S44660-CD; for welding the order is S44660 Annealed first (good, 55/100) then S44660-CD (fair, 48/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in S44660 Annealed and S44660-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.