Nickel Alloy N07776-SA vs N07776-STA
Nickel Alloy · N07776 temper comparison
N07776-SA and N07776-STA are two conditions of the same nickel alloy grade, N07776: SA (solution annealed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. N07776-STA is the stronger of the two: yield strength 1,010 MPa (146 ksi) against 420 MPa (60.9 ksi) for N07776-SA, about 140% more; tensile strength follows at 1,300 MPa (189 ksi) vs 850 MPa (123 ksi). In exchange, N07776-SA is the more ductile: elongation 48% versus 22% for N07776-STA, and N07776-STA is harder (340 HB vs 200 HB). On the shop floor, N07776-SA welds better (good vs fair).
N07776-SAChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
N07776-STAChoose it when strength drives the design.
N07776-SA vs N07776-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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 204 GPa29.6 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 175 GPa25.4 Msi · Poisson's Ratio 0.31 · Shear Strength 780 MPa113 ksi · Fracture Toughness (K_IC) 100 MPa·√m91 ksi·√in · Hardness, Rockwell C 36 HRC · Hardness, Vickers 360 HV
Physical
Density and transition temperatures.
Same in both: Density 8.3 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,265°C2,309 °F · Liquidus Temperature 1,340°C2,444 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 10.8 W/m·K6.2 BTU/hr·ft·°F · Specific Heat Capacity 435 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.8 µm/m·K7.1 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Max Service Temperature (continuous) 650°C1,202 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.4 % IACS · Electrical Resistivity 1.25×10⁻⁶ Ω·m49.2 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
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 12% · Brazeability / Solderability 50 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 215 MJ/kg92,433 BTU/lb · Embodied Carbon (primary production) 14.5 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.
N07776-SA vs N07776-STA — frequently asked
Is N07776-STA stronger than N07776-SA?
Yes. N07776-STA has a typical yield strength of 1,010 MPa (146 ksi) against 420 MPa (60.9 ksi) for N07776-SA — about 140% more. Tensile strength is 1,300 MPa (189 ksi) vs 850 MPa (123 ksi).
Which condition does FabDigit quote by default, SA or STA?
STA is the default N07776 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 is easier to machine, N07776-SA or N07776-STA?
N07776-SA, by a small margin. Both rate poor for machinability — 22/100 against 15/100 for N07776-STA; for welding the order is N07776-SA first (good, 60/100) then N07776-STA (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in N07776-SA and N07776-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.