Nickel Alloy Haynes 230-AC vs Haynes 230-CW
Nickel Alloy · Haynes 230 temper comparison
Haynes 230-AC and Haynes 230-CW are two conditions of the same nickel alloy grade, Haynes 230: AC (spheroidize annealed) versus CW (cold worked). The chemistry is identical, so every difference below comes from the condition. Haynes 230-CW is the stronger of the two: yield strength 1,000 MPa (145 ksi) against 345 MPa (50 ksi) for Haynes 230-AC, about 190% more; tensile strength follows at 1,200 MPa (174 ksi) vs 620 MPa (89.9 ksi). In exchange, Haynes 230-AC is the more ductile: elongation 12% versus 6% for Haynes 230-CW, and Haynes 230-CW is harder (327 HB vs 210 HB). Haynes 230-AC runs hotter in service (1,120°C vs 550°C continuous).
Haynes 230-ACChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Haynes 230-CWChoose it when strength drives the design.
Haynes 230-AC vs Haynes 230-CW: 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.
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)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 211 GPa30.6 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 185 GPa26.8 Msi · Poisson's Ratio 0.31 · Charpy V-Notch Impact (RT) 35 J25.8 ft·lbf · Hardness, Rockwell B 95 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.97 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,301°C2,374 °F · Liquidus Temperature 1,371°C2,500 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 8.9 W/m·K5.1 BTU/hr·ft·°F · Specific Heat Capacity 397 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.4 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 65 / 100 · Castability 45 / 100 · Brazeability / Solderability 65 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 230 MJ/kg98,882 BTU/lb · Embodied Carbon (primary production) 15 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 35%
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.
Haynes 230-AC vs Haynes 230-CW — frequently asked
Is Haynes 230-CW stronger than Haynes 230-AC?
Yes. Haynes 230-CW has a typical yield strength of 1,000 MPa (145 ksi) against 345 MPa (50 ksi) for Haynes 230-AC — about 190% more. Tensile strength is 1,200 MPa (174 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, AC or CW?
SA is the default Haynes 230 condition in the FabDigit quote flow (neither AC nor CW). 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 Haynes 230-AC over Haynes 230-CW?
Pick Haynes 230-AC when the part is bent, formed or impact-loaded, or when the part sees heat. Pick Haynes 230-CW when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Haynes 230-AC and Haynes 230-CW 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.