Nickel 270 Annealed vs Nickel 270 Stress Relieved
Nickel Alloy · Nickel 270 temper comparison
Nickel 270 Annealed and Nickel 270 Stress Relieved are two conditions of the same nickel alloy grade, Nickel 270: Annealed versus Stress Relieved. The chemistry is identical, so every difference below comes from the condition. Nickel 270 Stress Relieved is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 105 MPa (15.2 ksi) for Nickel 270 Annealed, about 3.6 times as much; tensile strength follows at 470 MPa (68.2 ksi) vs 345 MPa (50 ksi). In exchange, Nickel 270 Annealed is the more ductile: elongation 50% versus 20% for Nickel 270 Stress Relieved, and Nickel 270 Stress Relieved is harder (120 HB vs 45 HB). Nickel 270 Annealed runs hotter in service (600°C vs 315°C continuous). On the shop floor, Nickel 270 Stress Relieved machines more easily (30 vs 20 out of 100).
Nickel 270 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Nickel 270 Stress RelievedChoose it when strength drives the design, or when the part is machined in volume.
Nickel 270 Annealed vs Nickel 270 Stress Relieved: 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.
Nickel 270 AnnealedNickel 270 Stress Relieved
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, Vickers
Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 76 GPa11 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 8.89 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,454°C2,649 °F · Liquidus Temperature 1,455°C2,651 °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 456 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.3 µm/m·K7.4 µin/in·°F · Latent Heat of Fusion 297 J/g128 BTU/lb · Min Service Temperature -250°C-418 °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) -0.2 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: Brazeability / Solderability 80 / 100 · Polishability 82 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 220 MJ/kg94,583 BTU/lb · Embodied Carbon (primary production) 14 kg CO₂/kg · Embodied Water 150 L/kg18 gal/lb · Typical Recycled Content 2%
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.
Nickel 270 Annealed vs Nickel 270 Stress Relieved — frequently asked
Is Nickel 270 Stress Relieved stronger than Nickel 270 Annealed?
Yes. Nickel 270 Stress Relieved has a typical yield strength of 380 MPa (55.1 ksi) against 105 MPa (15.2 ksi) for Nickel 270 Annealed — about 3.6 times as much. Tensile strength is 470 MPa (68.2 ksi) vs 345 MPa (50 ksi).
Which condition does FabDigit quote by default, Annealed or Stress Relieved?
Annealed is the default Nickel 270 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, Nickel 270 Annealed or Nickel 270 Stress Relieved?
Nickel 270 Stress Relieved, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for Nickel 270 Annealed; for welding the order is Nickel 270 Annealed first (excellent, 85/100) then Nickel 270 Stress Relieved (very good, 80/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Nickel 270 Annealed and Nickel 270 Stress Relieved 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.