Nickel Alloy ERNiFeCr-2-SA vs ERNiFeCr-2-STA
Nickel Alloy · ERNiFeCr-2 temper comparison
ERNiFeCr-2-SA and ERNiFeCr-2-STA are two conditions of the same nickel alloy grade, ERNiFeCr-2: SA (solution annealed weld metal) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. ERNiFeCr-2-STA is the stronger of the two: yield strength 1,030 MPa (149 ksi) against 450 MPa (65.3 ksi) for ERNiFeCr-2-SA, about 129% more; tensile strength follows at 1,240 MPa (180 ksi) vs 850 MPa (123 ksi). In exchange, ERNiFeCr-2-SA is the more ductile: elongation 35% versus 12% for ERNiFeCr-2-STA, and ERNiFeCr-2-STA is harder (240 HB vs 210 HB). On the shop floor, ERNiFeCr-2-SA machines more easily (fair vs poor).
ERNiFeCr-2-SAChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
ERNiFeCr-2-STAChoose it when strength drives the design.
ERNiFeCr-2-SA vs ERNiFeCr-2-STA: 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.
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 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 8.19 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,260°C2,300 °F · Liquidus Temperature 1,336°C2,437 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 11.4 W/m·K6.6 BTU/hr·ft·°F · Specific Heat Capacity 435 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 210 J/g90.3 BTU/lb · Min Service Temperature -253°C-423 °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: Brazeability / Solderability 55 / 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) 12 kg CO₂/kg · Embodied Water 400 L/kg47.9 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.
ERNiFeCr-2-SA vs ERNiFeCr-2-STA — frequently asked
Is ERNiFeCr-2-STA stronger than ERNiFeCr-2-SA?
Yes. ERNiFeCr-2-STA has a typical yield strength of 1,030 MPa (149 ksi) against 450 MPa (65.3 ksi) for ERNiFeCr-2-SA — about 129% more. Tensile strength is 1,240 MPa (180 ksi) vs 850 MPa (123 ksi).
Which condition does FabDigit quote by default, SA or STA?
AW is the default ERNiFeCr-2 condition in the FabDigit quote flow (neither SA nor STA). 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, ERNiFeCr-2-SA or ERNiFeCr-2-STA?
ERNiFeCr-2-SA. Its machinability rates fair (35/100) against poor (20/100) for ERNiFeCr-2-STA; for welding the order is ERNiFeCr-2-SA first (good, 65/100) then ERNiFeCr-2-STA (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in ERNiFeCr-2-SA and ERNiFeCr-2-STA 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.