Stainless Steel 409Cb-ANN vs 409Cb-CW14
Stainless Steel · 409Cb temper comparison
409Cb-ANN and 409Cb-CW14 are two conditions of the same stainless steel grade, 409Cb: ANN (annealed) versus CW14 (cold Worked 1/4 Hard). The chemistry is identical, so every difference below comes from the condition. 409Cb-CW14 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 255 MPa (37 ksi) for 409Cb-ANN, about 76% more; tensile strength follows at 550 MPa (79.8 ksi) vs 430 MPa (62.4 ksi). In exchange, 409Cb-ANN is the more ductile: elongation 32% versus 9% for 409Cb-CW14, and 409Cb-CW14 is harder (204 HB vs 150 HB).
409Cb-ANNChoose it when the part is bent, formed or impact-loaded.
409Cb-CW14Choose it when strength drives the design.
409Cb-ANN vs 409Cb-CW14: 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
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 160 GPa23.2 Msi · Poisson's Ratio 0.29
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.
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 260 J/g112 BTU/lb · Max Service Temperature (continuous) 760°C1,400 °F · 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.35 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 70 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 40 MJ/kg17,197 BTU/lb · Embodied Carbon (primary production) 2.7 kg CO₂/kg · Embodied Water 90 L/kg10.8 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.
409Cb-ANN vs 409Cb-CW14 — frequently asked
Is 409Cb-CW14 stronger than 409Cb-ANN?
Yes. 409Cb-CW14 has a typical yield strength of 450 MPa (65.3 ksi) against 255 MPa (37 ksi) for 409Cb-ANN — about 76% more. Tensile strength is 550 MPa (79.8 ksi) vs 430 MPa (62.4 ksi).
Which condition does FabDigit quote by default, ANN or CW14?
ANN is the default 409Cb 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, 409Cb-ANN or 409Cb-CW14?
409Cb-CW14, by a small margin. Both rate good for machinability — 60/100 against 55/100 for 409Cb-ANN; for welding the order is 409Cb-ANN first (excellent, 85/100) then 409Cb-CW14 (very good, 80/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 409Cb-ANN and 409Cb-CW14 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.