Stainless Steel S32001-CD vs S32001 WT-Ann
Stainless Steel · S32001 temper comparison
S32001-CD and S32001 WT-Ann are two conditions of the same stainless steel grade, S32001: CD (cold drawn) versus WT-Ann (welded tube/pipe, solution annealed after welding). The chemistry is identical, so every difference below comes from the condition. S32001-CD is the stronger of the two: yield strength 690 MPa (100 ksi) against 510 MPa (74 ksi) for S32001 WT-Ann, about 35% more; tensile strength follows at 830 MPa (120 ksi) vs 680 MPa (98.6 ksi). In exchange, S32001 WT-Ann is the more ductile: elongation 30% versus 18% for S32001-CD, and S32001-CD is harder (275 HB vs 230 HB).
S32001-CDChoose it when strength drives the design.
S32001 WT-AnnChoose it when the part is bent, formed or impact-loaded.
S32001-CD vs S32001 WT-Ann: 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, Rockwell C
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 7.74 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,465°C2,669 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 15.5 W/m·K9 BTU/hr·ft·°F · Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.5 % IACS · Electrical Resistivity 7×10⁻⁷ Ω·m27.6 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 35 / 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 150 L/kg18 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.
S32001-CD vs S32001 WT-Ann — frequently asked
Is S32001-CD stronger than S32001 WT-Ann?
Yes. S32001-CD has a typical yield strength of 690 MPa (100 ksi) against 510 MPa (74 ksi) for S32001 WT-Ann — about 35% more. Tensile strength is 830 MPa (120 ksi) vs 680 MPa (98.6 ksi).
Which condition does FabDigit quote by default, CD or WT-Ann?
Annealed is the default S32001 condition in the FabDigit quote flow (neither CD nor WT-Ann). 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, S32001-CD or S32001 WT-Ann?
S32001 WT-Ann. Its weldability rates very good (70/100) against good (65/100) for S32001-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S32001-CD and S32001 WT-Ann 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.