Stainless Steel 409 Cold Drawn vs 409 Temper Rolled
Stainless Steel · 409 temper comparison
409 Cold Drawn and 409 Temper Rolled are two conditions of the same stainless steel grade, 409: Cold Drawn versus Temper Rolled (temper rolled / skin passed). The chemistry is identical, so every difference below comes from the condition. 409 Cold Drawn is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 330 MPa (47.9 ksi) for 409 Temper Rolled, about 36% more; tensile strength follows at 550 MPa (79.8 ksi) vs 490 MPa (71.1 ksi). In exchange, 409 Temper Rolled is the more ductile: elongation 22% versus 15% for 409 Cold Drawn, and 409 Cold Drawn is harder (195 HB vs 170 HB). 409 Temper Rolled runs hotter in service (675°C vs 400°C continuous).
409 Cold DrawnChoose it when strength drives the design.
409 Temper RolledChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
409 Cold Drawn vs 409 Temper Rolled: 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.
409 Cold Drawn409 Temper Rolled
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 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,482°C2,700 °F · Liquidus Temperature 1,532°C2,790 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
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 · Min Service Temperature -20°C-4 °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 60 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 40 MJ/kg17,197 BTU/lb · Embodied Carbon (primary production) 2.9 kg CO₂/kg · Embodied Water 90 L/kg10.8 gal/lb · Typical Recycled Content 65%
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.
409 Cold Drawn vs 409 Temper Rolled — frequently asked
Is 409 Cold Drawn stronger than 409 Temper Rolled?
Yes. 409 Cold Drawn has a typical yield strength of 450 MPa (65.3 ksi) against 330 MPa (47.9 ksi) for 409 Temper Rolled — about 36% more. Tensile strength is 550 MPa (79.8 ksi) vs 490 MPa (71.1 ksi).
Which condition does FabDigit quote by default, Cold Drawn or Temper Rolled?
Annealed is the default 409 condition in the FabDigit quote flow (neither Cold Drawn nor Temper Rolled). 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 409 Cold Drawn over 409 Temper Rolled?
Pick 409 Cold Drawn when strength drives the design. Pick 409 Temper Rolled when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 409 Cold Drawn and 409 Temper Rolled 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.