Stainless Steel R20033 Annealed vs R20033 CR-Hard
Stainless Steel · R20033 temper comparison
R20033 Annealed and R20033 CR-Hard are two conditions of the same stainless steel grade, R20033: Annealed versus CR-Hard (cold rolled strip, hard temper). The chemistry is identical, so every difference below comes from the condition. R20033 CR-Hard is the stronger of the two: yield strength 800 MPa (116 ksi) against 430 MPa (62.4 ksi) for R20033 Annealed, about 86% more; tensile strength follows at 1,050 MPa (152 ksi) vs 800 MPa (116 ksi). In exchange, R20033 Annealed is the more ductile: elongation 45% versus 12% for R20033 CR-Hard, and R20033 CR-Hard is harder (300 HB vs 200 HB). R20033 Annealed runs hotter in service (450°C vs 300°C continuous). On the shop floor, R20033 Annealed welds better (very good vs good).
R20033 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
R20033 CR-HardChoose it when strength drives the design.
R20033 Annealed vs R20033 CR-Hard: 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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 196 GPa28.4 Msi · Shear Modulus 76 GPa11 Msi · Bulk Modulus 163 GPa23.6 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 92 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.9 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,440°C2,624 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 12 W/m·K6.9 BTU/hr·ft·°F · Specific Heat Capacity 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.5 µm/m·K8.1 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.9 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 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 45 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 6 kg CO₂/kg · Embodied Water 300 L/kg35.9 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.
R20033 Annealed vs R20033 CR-Hard — frequently asked
Is R20033 CR-Hard stronger than R20033 Annealed?
Yes. R20033 CR-Hard has a typical yield strength of 800 MPa (116 ksi) against 430 MPa (62.4 ksi) for R20033 Annealed — about 86% more. Tensile strength is 1,050 MPa (152 ksi) vs 800 MPa (116 ksi).
Which condition does FabDigit quote by default, Annealed or CR-Hard?
Annealed is the default R20033 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, R20033 Annealed or R20033 CR-Hard?
R20033 Annealed. Its weldability rates very good (70/100) against good (60/100) for R20033 CR-Hard.
Ready to make it?
Upload a CAD file and FabDigit prices the part in R20033 Annealed and R20033 CR-Hard 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.