Stainless Steel S32803-ANN vs S32803 CW-80
Stainless Steel · S32803 temper comparison
S32803-ANN and S32803 CW-80 are two conditions of the same stainless steel grade, S32803: ANN (annealed) versus CW-80 (cold Worked 80 ksi). The chemistry is identical, so every difference below comes from the condition. S32803 CW-80 is the stronger of the two: yield strength 600 MPa (87 ksi) against 520 MPa (75.4 ksi) for S32803-ANN, about 15% more; tensile strength follows at 720 MPa (104 ksi) vs 640 MPa (92.8 ksi). In exchange, S32803-ANN is the more ductile: elongation 25% versus 20% for S32803 CW-80, and S32803 CW-80 is harder (230 HB vs 195 HB). S32803-ANN runs hotter in service (300°C vs 250°C continuous). On the shop floor, S32803-ANN welds better (45 vs 35 out of 100).
S32803-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S32803 CW-80Choose it when strength drives the design.
S32803-ANN vs S32803 CW-80: 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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 16 W/m·K9.2 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.5 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -45°C-49 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 2.6 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 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 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 50 MJ/kg21,496 BTU/lb · Embodied Carbon (primary production) 4.5 kg CO₂/kg · Embodied Water 80 L/kg9.6 gal/lb · Typical Recycled Content 40%
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.
S32803-ANN vs S32803 CW-80 — frequently asked
Is S32803 CW-80 stronger than S32803-ANN?
Yes. S32803 CW-80 has a typical yield strength of 600 MPa (87 ksi) against 520 MPa (75.4 ksi) for S32803-ANN — about 15% more. Tensile strength is 720 MPa (104 ksi) vs 640 MPa (92.8 ksi).
Which condition does FabDigit quote by default, ANN or CW-80?
ANN is the default S32803 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 welds better, S32803-ANN or S32803 CW-80?
S32803-ANN. Its weldability rates fair (45/100) against fair (35/100) for S32803 CW-80.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S32803-ANN and S32803 CW-80 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.