Nickel Alloy 601GC-CD vs 601GC-HRA
Nickel Alloy · 601GC temper comparison
601GC-CD and 601GC-HRA are two conditions of the same nickel alloy grade, 601GC: CD (cold drawn) versus HRA (hot-worked and annealed). The chemistry is identical, so every difference below comes from the condition. 601GC-CD is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 290 MPa (42.1 ksi) for 601GC-HRA, about 90% more; tensile strength follows at 830 MPa (120 ksi) vs 655 MPa (95 ksi). In exchange, 601GC-HRA is the more ductile: elongation 45% versus 25% for 601GC-CD, and 601GC-CD is harder (230 HB vs 160 HB). 601GC-HRA runs hotter in service (1,200°C vs 600°C continuous).
601GC-CDChoose it when strength drives the design.
601GC-HRAChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
601GC-CD vs 601GC-HRA: 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 206 GPa29.9 Msi · Shear Modulus 78.5 GPa11.4 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 8.11 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,360°C2,480 °F · Liquidus Temperature 1,411°C2,572 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 11.3 W/m·K6.5 BTU/hr·ft·°F · Specific Heat Capacity 448 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.8 µm/m·K7.6 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.5 % IACS · Electrical Resistivity 1.19×10⁻⁶ Ω·m46.9 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V · Corrosion Resistance 78 / 100
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 85 / 100 · Castability 30 / 100 · Brazeability / Solderability 65 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 150 MJ/kg64,488 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 400 L/kg47.9 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.
601GC-CD vs 601GC-HRA — frequently asked
Is 601GC-CD stronger than 601GC-HRA?
Yes. 601GC-CD has a typical yield strength of 550 MPa (79.8 ksi) against 290 MPa (42.1 ksi) for 601GC-HRA — about 90% more. Tensile strength is 830 MPa (120 ksi) vs 655 MPa (95 ksi).
Which condition does FabDigit quote by default, CD or HRA?
ANN is the default 601GC condition in the FabDigit quote flow (neither CD nor HRA). 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 601GC-CD over 601GC-HRA?
Pick 601GC-CD when strength drives the design. Pick 601GC-HRA when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 601GC-CD and 601GC-HRA 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.