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Nickel Alloy ENiCrFe-2 vs ENiCrFe-3

Nickel Alloy · grade comparison

Nickel Alloy ENiCrFe-2 and ENiCrFe-3 are both nickel alloy grades. Both yield at about 420 MPa — strength does not separate them. ENiCrFe-2 is harder — 12 HRC against 11 HRC for ENiCrFe-3 — which matters for wear surfaces and threads. ENiCrFe-2 conducts heat better (12 W/m·K vs 10.5 W/m·K). On the shop floor, ENiCrFe-2 forms better (good vs fair).

ENiCrFe-2Choose it when surface hardness matters.

ENiCrFe-2 vs ENiCrFe-3: properties

ENiCrFe-2ENiCrFe-3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

79 GPa11.5 Msi
78 GPa11.3 Msi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
140 MPa·√m127 ksi·√in

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

195 HB
190 HB

Hardness, Rockwell B

91 HRB
90 HRB

Hardness, Rockwell C

12 HRC
11 HRC

Hardness, Vickers

205 HV
200 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Bulk Modulus 170 GPa24.7 Msi · Poisson's Ratio 0.31 · Tensile Strength (Ultimate) 620 MPa89.9 ksi · Yield Strength (0.2% offset) 420 MPa60.9 ksi · Elongation at Break 38% · Reduction in Area 40% · Compressive Strength 430 MPa62.4 ksi · Shear Strength 400 MPa58 ksi · Fatigue Strength (Endurance Limit) 250 MPa36.3 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,345°C2,453 °F
1,340°C2,444 °F

Same in both: Density 8.3 g/cm³0.3 lb/in³ · Liquidus Temperature 1,400°C2,552 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

12 W/m·K6.9 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F

Specific Heat Capacity

445 J/kg·K0.11 BTU/lb·°F
450 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

14 µm/m·K7.8 µin/in·°F
14.5 µm/m·K8.1 µin/in·°F

Latent Heat of Fusion

295 J/g127 BTU/lb
—

Same in both: Max Service Temperature (continuous) 650°C1,202 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.6 % IACS
1.4 % IACS

Electrical Resistivity

1.05×10⁻⁶ Ω·m41.3 µΩ·in
1.25×10⁻⁶ Ω·m49.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

74 / 100
76 / 100

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 Rating (AISI 1212 = 100 %)

15%
12%

Formability (cold)

60 / 100
50 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

65 / 100
60 / 100

Same in both: Machinability 28 / 100 · Weldability 88 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

145 MJ/kg62,339 BTU/lb
135 MJ/kg58,040 BTU/lb

Embodied Carbon (primary production)

13 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

480 L/kg57.5 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

35%
25%

Common Calculations

Ratios derived from the values above.

Thermal Diffusivity

3.2 mm²/s
2.8 mm²/s

Thermal Shock Resistance Index

3
2

Same in both: Specific Strength (UTS / density) 75 kN·m/kg · Specific Stiffness (E / density) 24.7 MN·m/kg · Modulus of Resilience 430 kJ/m³

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.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleENiCrFe-2ENiCrFe-3

Manufacturing and finishing

CapabilityENiCrFe-2ENiCrFe-3
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

ENiCrFe-2 vs ENiCrFe-3 — frequently asked

What is the difference between ENiCrFe-2 and ENiCrFe-3?

Nickel Alloy ENiCrFe-2 and ENiCrFe-3 are both nickel alloy grades. Both yield at about 420 MPa — strength does not separate them. ENiCrFe-2 is harder — 12 HRC against 11 HRC for ENiCrFe-3 — which matters for wear surfaces and threads.

Which is cheaper, ENiCrFe-2 or ENiCrFe-3?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose ENiCrFe-2 over ENiCrFe-3?

Pick ENiCrFe-2 when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ENiCrFe-2 and ENiCrFe-3 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.