Nickel Alloy G-NiCr50Nb-AW vs G-NiCr50Nb-SR
Nickel Alloy · G-NiCr50Nb temper comparison
G-NiCr50Nb-AW and G-NiCr50Nb-SR are two conditions of the same nickel alloy grade, G-NiCr50Nb: AW (as-welded deposit) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. G-NiCr50Nb-AW is the stronger of the two: yield strength 390 MPa (56.6 ksi) against 370 MPa (53.7 ksi) for G-NiCr50Nb-SR, about 5% more. In exchange, G-NiCr50Nb-SR is the more ductile: elongation 6% versus 4% for G-NiCr50Nb-AW, and G-NiCr50Nb-AW is harder (250 HB vs 230 HB).
G-NiCr50Nb-AWChoose it when strength drives the design.
G-NiCr50Nb-SRChoose it when the part is bent, formed or impact-loaded.
G-NiCr50Nb-AW vs G-NiCr50Nb-SR: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 167 GPa24.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.9 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,330°C2,426 °F · Liquidus Temperature 1,370°C2,498 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Max Service Temperature (continuous) 1,100°C2,012 °F · Min Service Temperature 20°C68 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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 55 / 100 · Brazeability / Solderability 40 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 145 MJ/kg62,339 BTU/lb · Embodied Carbon (primary production) 10.5 kg CO₂/kg · 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.
G-NiCr50Nb-AW vs G-NiCr50Nb-SR — frequently asked
Is G-NiCr50Nb-AW stronger than G-NiCr50Nb-SR?
Yes. G-NiCr50Nb-AW has a typical yield strength of 390 MPa (56.6 ksi) against 370 MPa (53.7 ksi) for G-NiCr50Nb-SR — about 5% more. Tensile strength is 550 MPa (79.8 ksi) vs 560 MPa (81.2 ksi).
Which condition does FabDigit quote by default, AW or SR?
F is the default G-NiCr50Nb condition in the FabDigit quote flow (neither AW nor SR). 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, G-NiCr50Nb-AW or G-NiCr50Nb-SR?
G-NiCr50Nb-SR. Its machinability rates poor (15/100) against not recommended (10/100) for G-NiCr50Nb-AW; for welding the order is G-NiCr50Nb-SR first (poor, 30/100) then G-NiCr50Nb-AW (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in G-NiCr50Nb-AW and G-NiCr50Nb-SR 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.