Stainless Steel S35140-CD vs S35140 CR-1/4H
Stainless Steel · S35140 temper comparison
S35140-CD and S35140 CR-1/4H are two conditions of the same stainless steel grade, S35140: CD (cold drawn) versus CR-1/4H (cold Rolled 1/4 Hard). The chemistry is identical, so every difference below comes from the condition. S35140-CD is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 520 MPa (75.4 ksi) for S35140 CR-1/4H, about 6% more. In exchange, S35140 CR-1/4H is the more ductile: elongation 25% versus 22% for S35140-CD, and S35140-CD is harder (240 HB vs 215 HB). S35140-CD runs hotter in service (1,000°C vs 425°C continuous).
S35140-CDChoose it when strength drives the design, or when the part sees heat.
S35140 CR-1/4HChoose it when the part is bent, formed or impact-loaded.
S35140-CD vs S35140 CR-1/4H: 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.
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 196 GPa28.4 Msi · Shear Modulus 76 GPa11 Msi · Bulk Modulus 150 GPa21.8 Msi · Poisson's Ratio 0.3 · Tensile Strength (Ultimate) 760 MPa110 ksi
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,350°C2,462 °F · Liquidus Temperature 1,400°C2,552 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 11.5 W/m·K6.6 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.5 µm/m·K8.1 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 76 / 100
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 65 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 75 MJ/kg32,244 BTU/lb · Embodied Carbon (primary production) 6.2 kg CO₂/kg · Embodied Water 200 L/kg24 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.
S35140-CD vs S35140 CR-1/4H — frequently asked
Is S35140-CD stronger than S35140 CR-1/4H?
Yes. S35140-CD has a typical yield strength of 550 MPa (79.8 ksi) against 520 MPa (75.4 ksi) for S35140 CR-1/4H — about 6% more. Tensile strength is 760 MPa (110 ksi) vs 760 MPa (110 ksi).
Which condition does FabDigit quote by default, CD or CR-1/4H?
Annealed is the default S35140 condition in the FabDigit quote flow (neither CD nor CR-1/4H). 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 S35140-CD over S35140 CR-1/4H?
Pick S35140-CD when strength drives the design, or when the part sees heat. Pick S35140 CR-1/4H when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S35140-CD and S35140 CR-1/4H 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.