Nickel Alloy ERNi-1-AW vs ERNi-1-SR
Nickel Alloy · ERNi-1 temper comparison
ERNi-1-AW and ERNi-1-SR are two conditions of the same nickel alloy grade, ERNi-1: AW (as-welded deposit) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. ERNi-1-AW is the stronger of the two: yield strength 310 MPa (45 ksi) against 165 MPa (23.9 ksi) for ERNi-1-SR, about 88% more; tensile strength follows at 470 MPa (68.2 ksi) vs 420 MPa (60.9 ksi). In exchange, ERNi-1-SR is the more ductile: elongation 45% versus 35% for ERNi-1-AW, and ERNi-1-AW is harder (105 HB vs 90 HB).
ERNi-1-AWChoose it when strength drives the design.
ERNi-1-SRChoose it when the part is bent, formed or impact-loaded.
ERNi-1-AW vs ERNi-1-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, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 78 GPa11.3 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) 1,435°C2,615 °F · Liquidus Temperature 1,445°C2,633 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
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 · Max Service Temperature (continuous) 425°C797 °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) -0.2 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 88 / 100 · Castability 45 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 165 MJ/kg70,937 BTU/lb · Embodied Carbon (primary production) 14.5 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 25%
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.
ERNi-1-AW vs ERNi-1-SR — frequently asked
Is ERNi-1-AW stronger than ERNi-1-SR?
Yes. ERNi-1-AW has a typical yield strength of 310 MPa (45 ksi) against 165 MPa (23.9 ksi) for ERNi-1-SR — about 88% more. Tensile strength is 470 MPa (68.2 ksi) vs 420 MPa (60.9 ksi).
Which condition does FabDigit quote by default, AW or SR?
AW is the default ERNi-1 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, ERNi-1-AW or ERNi-1-SR?
ERNi-1-AW. Its machinability rates fair (35/100) against poor (30/100) for ERNi-1-SR.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ERNi-1-AW and ERNi-1-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.