Stainless Steel Alloy 611-CD vs Alloy 611 CW-1/4H
Stainless Steel · Alloy 611 temper comparison
Alloy 611-CD and Alloy 611 CW-1/4H are two conditions of the same stainless steel grade, Alloy 611: CD (cold drawn) versus CW-1/4H (1/4 Hard). The chemistry is identical, so every difference below comes from the condition. Alloy 611 CW-1/4H is the stronger of the two: yield strength 600 MPa (87 ksi) against 560 MPa (81.2 ksi) for Alloy 611-CD, about 7% more; tensile strength follows at 860 MPa (125 ksi) vs 800 MPa (116 ksi). In exchange, Alloy 611-CD is the more ductile: elongation 25% versus 20% for Alloy 611 CW-1/4H.
Alloy 611-CDChoose it when the part is bent, formed or impact-loaded.
Alloy 611 CW-1/4HChoose it when strength drives the design.
Alloy 611-CD vs Alloy 611 CW-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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 193 GPa28 Msi · Shear Modulus 73 GPa10.6 Msi · Bulk Modulus 158 GPa22.9 Msi · Poisson's Ratio 0.3 · Charpy V-Notch Impact (RT) 60 J44.3 ft·lbf · Hardness, Brinell 250 HB · Hardness, Vickers 265 HV
Physical
Density and transition temperatures.
Same in both: Density 7.6 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,350°C2,462 °F · Liquidus Temperature 1,410°C2,570 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 12 W/m·K6.9 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15.5 µm/m·K8.6 µin/in·°F · Max Service Temperature (continuous) 550°C1,022 °F · Min Service Temperature -100°C-148 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 9.7×10⁻⁷ Ω·m38.2 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 70 / 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 45 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 6 kg CO₂/kg · Embodied Water 180 L/kg21.6 gal/lb · Typical Recycled Content 45%
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.
Alloy 611-CD vs Alloy 611 CW-1/4H — frequently asked
Is Alloy 611 CW-1/4H stronger than Alloy 611-CD?
Yes. Alloy 611 CW-1/4H has a typical yield strength of 600 MPa (87 ksi) against 560 MPa (81.2 ksi) for Alloy 611-CD — about 7% more. Tensile strength is 860 MPa (125 ksi) vs 800 MPa (116 ksi).
Which condition does FabDigit quote by default, CD or CW-1/4H?
Annealed is the default Alloy 611 condition in the FabDigit quote flow (neither CD nor CW-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.
Which is easier to machine, Alloy 611-CD or Alloy 611 CW-1/4H?
Alloy 611-CD, by a small margin. Both rate poor for machinability — 33/100 against 27/100 for Alloy 611 CW-1/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alloy 611-CD and Alloy 611 CW-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.