Nickel Alloy Hastelloy C-22-CD vs Hastelloy C-22 CW-Hard
Nickel Alloy · Hastelloy C-22 temper comparison
Hastelloy C-22-CD and Hastelloy C-22 CW-Hard are two conditions of the same nickel alloy grade, Hastelloy C-22: CD (cold drawn) versus CW-Hard (heavily cold worked / spring temper strip and wire). The chemistry is identical, so every difference below comes from the condition. Hastelloy C-22 CW-Hard is the stronger of the two: yield strength 1,100 MPa (160 ksi) against 650 MPa (94.3 ksi) for Hastelloy C-22-CD, about 69% more; tensile strength follows at 1,250 MPa (181 ksi) vs 950 MPa (138 ksi). In exchange, Hastelloy C-22-CD is the more ductile: elongation 32% versus 5% for Hastelloy C-22 CW-Hard, and Hastelloy C-22 CW-Hard is harder (350 HB vs 250 HB). Hastelloy C-22-CD runs hotter in service (480°C vs 425°C continuous). On the shop floor, Hastelloy C-22-CD welds better (very good vs good).
Hastelloy C-22-CDChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Hastelloy C-22 CW-HardChoose it when strength drives the design.
Hastelloy C-22-CD vs Hastelloy C-22 CW-Hard: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy 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 nickel alloy 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.
Hastelloy C-22-CDHastelloy C-22 CW-Hard
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
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
Hardness, Vickers
Same in both: Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 8.69 g/cm³0.31 lb/in³ · Melting Point (Solidus) 1,357°C2,475 °F · Liquidus Temperature 1,399°C2,550 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 10.1 W/m·K5.8 BTU/hr·ft·°F · Specific Heat Capacity 414 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.4 µm/m·K6.9 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.5 % IACS · Electrical Resistivity 1.15×10⁻⁶ Ω·m45.3 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 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: Castability 35 / 100 · Brazeability / Solderability 50 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 145 MJ/kg62,339 BTU/lb · Embodied Carbon (primary production) 12 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 45%
Strength versus weight
Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Hastelloy C-22-CD vs Hastelloy C-22 CW-Hard — frequently asked
Is Hastelloy C-22 CW-Hard stronger than Hastelloy C-22-CD?
Yes. Hastelloy C-22 CW-Hard has a typical yield strength of 1,100 MPa (160 ksi) against 650 MPa (94.3 ksi) for Hastelloy C-22-CD — about 69% more. Tensile strength is 1,250 MPa (181 ksi) vs 950 MPa (138 ksi).
Which condition does FabDigit quote by default, CD or CW-Hard?
SA is the default Hastelloy C-22 condition in the FabDigit quote flow (neither CD nor CW-Hard). 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, Hastelloy C-22-CD or Hastelloy C-22 CW-Hard?
Hastelloy C-22-CD, by a small margin. Both rate poor for machinability — 24/100 against 16/100 for Hastelloy C-22 CW-Hard; for welding the order is Hastelloy C-22-CD first (very good, 78/100) then Hastelloy C-22 CW-Hard (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Hastelloy C-22-CD and Hastelloy C-22 CW-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.