Nickel Alloy N09777-CD vs N09777-STA
Nickel Alloy · N09777 temper comparison
N09777-CD and N09777-STA are two conditions of the same nickel alloy grade, N09777: CD (cold drawn) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. N09777-STA is the stronger of the two: yield strength 1,000 MPa (145 ksi) against 830 MPa (120 ksi) for N09777-CD, about 20% more; tensile strength follows at 1,275 MPa (185 ksi) vs 1,030 MPa (149 ksi). N09777-STA is harder — 40 HRC against 32 HRC for N09777-CD — which matters for wear surfaces and threads. N09777-STA runs hotter in service (650°C vs 425°C continuous). On the shop floor, N09777-CD welds better (good vs fair) and N09777-CD forms better (30 vs 20 out of 100).
N09777-CDChoose it when it will be welded.
N09777-STAChoose it when strength drives the design, or when surface hardness matters.
N09777-CD vs N09777-STA: 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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 62 GPa9 Msi · Bulk Modulus 127 GPa18.4 Msi · Poisson's Ratio 0.29 · Elongation at Break 15%
Physical
Density and transition temperatures.
Same in both: Density 8.14 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,345°C2,453 °F · Liquidus Temperature 1,425°C2,597 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 13 W/m·K7.5 BTU/hr·ft·°F · Specific Heat Capacity 435 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 7.4 µm/m·K4.1 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.35 V · Corrosion Resistance 40 / 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: Castability 30 / 100 · Brazeability / Solderability 55 / 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) 17 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 25%
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.
N09777-CD vs N09777-STA — frequently asked
Is N09777-STA stronger than N09777-CD?
Yes. N09777-STA has a typical yield strength of 1,000 MPa (145 ksi) against 830 MPa (120 ksi) for N09777-CD — about 20% more. Tensile strength is 1,275 MPa (185 ksi) vs 1,030 MPa (149 ksi).
Which condition does FabDigit quote by default, CD or STA?
STA is the default N09777 condition in the FabDigit quote flow. 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 welds better, N09777-CD or N09777-STA?
N09777-CD. Its weldability rates good (55/100) against fair (45/100) for N09777-STA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N09777-CD and N09777-STA 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.