Nickel Alloy Alloy 689-STA vs Alloy 689 STA-1010
Nickel Alloy · Alloy 689 temper comparison
Alloy 689-STA and Alloy 689 STA-1010 are two conditions of the same nickel alloy grade, Alloy 689: STA (solution treated and aged) versus STA-1010 (low-temperature solution (≈1010 °C) + 760 °C age). The chemistry is identical, so every difference below comes from the condition. Alloy 689 STA-1010 is the stronger of the two: yield strength 900 MPa (131 ksi) against 840 MPa (122 ksi) for Alloy 689-STA, about 7% more; tensile strength follows at 1,310 MPa (190 ksi) vs 1,240 MPa (180 ksi). Alloy 689 STA-1010 is the more ductile: elongation 18% versus 16% for Alloy 689-STA, and Alloy 689 STA-1010 is harder (350 HB vs 331 HB).
Alloy 689 STA-1010Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Alloy 689-STA vs Alloy 689 STA-1010: 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.
Alloy 689-STAAlloy 689 STA-1010
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 C
Hardness, Vickers
Same in both: Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 172 GPa24.9 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8.27 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,315°C2,399 °F · Liquidus Temperature 1,385°C2,525 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 290 J/g125 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) -0.1 V · Corrosion Resistance 70 / 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 45 / 100 · Brazeability / Solderability 40 / 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 1,200 L/kg144 gal/lb · Typical Recycled Content 30%
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.
Alloy 689-STA vs Alloy 689 STA-1010 — frequently asked
Is Alloy 689 STA-1010 stronger than Alloy 689-STA?
Yes. Alloy 689 STA-1010 has a typical yield strength of 900 MPa (131 ksi) against 840 MPa (122 ksi) for Alloy 689-STA — about 7% more. Tensile strength is 1,310 MPa (190 ksi) vs 1,240 MPa (180 ksi).
Which condition does FabDigit quote by default, STA or STA-1010?
STA is the default Alloy 689 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, Alloy 689-STA or Alloy 689 STA-1010?
Alloy 689-STA. Its weldability rates poor (30/100) against poor (22/100) for Alloy 689 STA-1010.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alloy 689-STA and Alloy 689 STA-1010 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.