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Nickel Alloy ENiCrCoMo-1 vs ENiCrFe-1

Nickel Alloy · grade comparison

Nickel Alloy ENiCrCoMo-1 and ENiCrFe-1 are both nickel alloy grades. ENiCrCoMo-1 is the stronger of the two: yield strength 430 MPa (62.4 ksi) against 380 MPa (55.1 ksi) for ENiCrFe-1, about 13% more; tensile strength follows at 720 MPa (104 ksi) vs 620 MPa (89.9 ksi). ENiCrCoMo-1 is harder — 210 HB against 185 HB for ENiCrFe-1 — which matters for wear surfaces and threads. ENiCrCoMo-1 runs hotter in service (1,100°C vs 815°C continuous).

ENiCrCoMo-1Choose it when strength drives the design, or when surface hardness matters.

ENiCrCoMo-1 vs ENiCrFe-1: properties

ENiCrCoMo-1ENiCrFe-1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

211 GPa30.6 Msi
207 GPa30 Msi

Shear Modulus

81 GPa11.7 Msi
79 GPa11.5 Msi

Bulk Modulus

176 GPa25.5 Msi
180 GPa26.1 Msi

Poisson's Ratio

0.3
0.31

Tensile Strength (Ultimate)

720 MPa104 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

430 MPa62.4 ksi
380 MPa55.1 ksi

Reduction in Area

40%
45%

Compressive Strength

440 MPa63.8 ksi
—

Shear Strength

480 MPa69.6 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

300 MPa43.5 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
—

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

210 HB
185 HB

Hardness, Rockwell B

94 HRB
90 HRB

Hardness, Rockwell C

17 HRC
—

Hardness, Vickers

220 HV
195 HV

Same in both: Elongation at Break 38%

Physical

Density and transition temperatures.

Density

8.36 g/cm³0.3 lb/in³
8.4 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,332°C2,430 °F
1,330°C2,426 °F

Liquidus Temperature

1,380°C2,516 °F
1,400°C2,552 °F

Thermal

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

Thermal Conductivity

13.6 W/m·K7.9 BTU/hr·ft·°F
12.5 W/m·K7.2 BTU/hr·ft·°F

Specific Heat Capacity

419 J/kg·K0.1 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.6 µm/m·K6.4 µin/in·°F
13.7 µm/m·K7.6 µin/in·°F

Max Service Temperature (continuous)

1,100°C2,012 °F
815°C1,499 °F

Same in both: Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.4 % IACS
1.5 % IACS

Electrical Resistivity

1.22×10⁻⁶ Ω·m48 µΩ·in
1.15×10⁻⁶ Ω·m45.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
72 / 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

20 / 100
25 / 100

Weldability

85 / 100
78 / 100

Formability (cold)

35 / 100
40 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 12% · Brazeability / Solderability 55 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

175 MJ/kg75,237 BTU/lb
150 MJ/kg64,488 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

86 kN·m/kg
74 kN·m/kg

Specific Stiffness (E / density)

25.2 MN·m/kg
24.6 MN·m/kg

Modulus of Resilience

438 kJ/m³
349 kJ/m³

Thermal Diffusivity

3.9 mm²/s
3.2 mm²/s

Thermal Shock Resistance Index

4
3

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 scaleENiCrCoMo-1ENiCrFe-1

Manufacturing and finishing

CapabilityENiCrCoMo-1ENiCrFe-1
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

ENiCrCoMo-1 vs ENiCrFe-1 — frequently asked

Is ENiCrCoMo-1 stronger than ENiCrFe-1?

Yes. ENiCrCoMo-1 has a typical yield strength of 430 MPa (62.4 ksi) against 380 MPa (55.1 ksi) for ENiCrFe-1 — about 13% more. Tensile strength is 720 MPa (104 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, ENiCrCoMo-1 or ENiCrFe-1?

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.

Which is easier to machine, ENiCrCoMo-1 or ENiCrFe-1?

ENiCrFe-1, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for ENiCrCoMo-1; for welding the order is ENiCrCoMo-1 first (excellent, 85/100) then ENiCrFe-1 (very good, 78/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in ENiCrCoMo-1 and ENiCrFe-1 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.