Nickel Alloy N7M-AW vs N7M-F
Nickel Alloy · N7M temper comparison
N7M-AW and N7M-F are two conditions of the same nickel alloy grade, N7M: AW (as-welded deposit) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. N7M-AW is the stronger of the two: tensile strength 560 MPa (81.2 ksi) against 520 MPa (75.4 ksi) for N7M-F, about 8% more. N7M-AW is the more ductile: elongation 22% versus 12% for N7M-F.
N7M-AWChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
N7M-AW vs N7M-F: 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)
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 210 GPa30.5 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 194 GPa28.1 Msi · Poisson's Ratio 0.32 · Yield Strength (0.2% offset) 330 MPa47.9 ksi
Physical
Density and transition temperatures.
Same in both: Density 9.22 g/cm³0.33 lb/in³ · Melting Point (Solidus) 1,330°C2,426 °F · Liquidus Temperature 1,380°C2,516 °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 373 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.3 µm/m·K5.7 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V
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 62 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 180 MJ/kg77,386 BTU/lb · Embodied Carbon (primary production) 13.5 kg CO₂/kg · Embodied Water 350 L/kg41.9 gal/lb · Typical Recycled Content 40%
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.
N7M-AW vs N7M-F — frequently asked
Is N7M-AW stronger than N7M-F?
Yes. N7M-AW has a typical tensile strength of 560 MPa (81.2 ksi) against 520 MPa (75.4 ksi) for N7M-F — about 8% more.
Which condition does FabDigit quote by default, AW or F?
SA is the default N7M condition in the FabDigit quote flow (neither AW nor F). 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, N7M-AW or N7M-F?
N7M-AW. Its weldability rates good (65/100) against good (58/100) for N7M-F.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N7M-AW and N7M-F 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.