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Nickel Alloy ENiCrCoMo-1 vs ERNiCrMo-3

Nickel Alloy · grade comparison

Nickel Alloy ENiCrCoMo-1 and ERNiCrMo-3 are both nickel alloy grades. ERNiCrMo-3 is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 430 MPa (62.4 ksi) for ENiCrCoMo-1, about 16% more; tensile strength follows at 800 MPa (116 ksi) vs 720 MPa (104 ksi). ENiCrCoMo-1 runs hotter in service (1,100°C vs 900°C continuous) and ENiCrCoMo-1 conducts heat better (13.6 W/m·K vs 9.8 W/m·K). On the shop floor, ERNiCrMo-3 welds better (95 vs 85 out of 100) and ERNiCrMo-3 forms better (good vs fair).

ENiCrCoMo-1Choose it when the part sees heat.

ERNiCrMo-3Choose it when strength drives the design, or when it will be welded.

ENiCrCoMo-1 vs ERNiCrMo-3: properties

ENiCrCoMo-1ERNiCrMo-3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

211 GPa30.6 Msi
205 GPa29.7 Msi

Shear Modulus

81 GPa11.7 Msi
79 GPa11.5 Msi

Bulk Modulus

176 GPa25.5 Msi
155 GPa22.5 Msi

Tensile Strength (Ultimate)

720 MPa104 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

430 MPa62.4 ksi
500 MPa72.5 ksi

Elongation at Break

38%
40%

Reduction in Area

40%
42%

Compressive Strength

440 MPa63.8 ksi
—

Shear Strength

480 MPa69.6 ksi
500 MPa72.5 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
100 J73.8 ft·lbf

Hardness, Rockwell B

94 HRB
95 HRB

Hardness, Rockwell C

17 HRC
—

Same in both: Poisson's Ratio 0.3 · Fatigue Strength (Endurance Limit) 300 MPa43.5 ksi · Hardness, Brinell 210 HB · Hardness, Vickers 220 HV

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,332°C2,430 °F
1,290°C2,354 °F

Liquidus Temperature

1,380°C2,516 °F
1,350°C2,462 °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
9.8 W/m·K5.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.6 µm/m·K6.4 µin/in·°F
12.8 µm/m·K7.1 µin/in·°F

Latent Heat of Fusion

290 J/g125 BTU/lb
285 J/g123 BTU/lb

Max Service Temperature (continuous)

1,100°C2,012 °F
900°C1,652 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.4 % IACS
1.3 % IACS

Electrical Resistivity

1.22×10⁻⁶ Ω·m48 µΩ·in
1.29×10⁻⁶ Ω·m50.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.1 V

Corrosion Resistance

80 / 100
90 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

20 / 100
15 / 100

Machinability Rating (AISI 1212 = 100 %)

12%
13%

Weldability

85 / 100
95 / 100

Formability (cold)

35 / 100
60 / 100

Brazeability / Solderability

55 / 100
70 / 100

Polishability

60 / 100
75 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

175 MJ/kg75,237 BTU/lb
170 MJ/kg73,087 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
420 L/kg50.3 gal/lb

Typical Recycled Content

30%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

86 kN·m/kg
95 kN·m/kg

Specific Stiffness (E / density)

25.2 MN·m/kg
24.3 MN·m/kg

Modulus of Resilience

438 kJ/m³
610 kJ/m³

Thermal Diffusivity

3.9 mm²/s
2.8 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-1ERNiCrMo-3

Manufacturing and finishing

CapabilityENiCrCoMo-1ERNiCrMo-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.

ENiCrCoMo-1 vs ERNiCrMo-3 — frequently asked

Is ERNiCrMo-3 stronger than ENiCrCoMo-1?

Yes. ERNiCrMo-3 has a typical yield strength of 500 MPa (72.5 ksi) against 430 MPa (62.4 ksi) for ENiCrCoMo-1 — about 16% more. Tensile strength is 800 MPa (116 ksi) vs 720 MPa (104 ksi).

Which is cheaper, ENiCrCoMo-1 or ERNiCrMo-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.

Which is easier to machine, ENiCrCoMo-1 or ERNiCrMo-3?

ENiCrCoMo-1, by a small margin. Both rate poor for machinability — 20/100 against 15/100 for ERNiCrMo-3; for welding the order is ERNiCrMo-3 first (excellent, 95/100) then ENiCrCoMo-1 (excellent, 85/100).

Ready to make it?

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