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Nickel Alloy Inconel 600 vs Nimonic 86

Nickel Alloy · grade comparison

Nickel Alloy Inconel 600 and Nimonic 86 are both nickel alloy grades. Nimonic 86 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 255 MPa (37 ksi) for Inconel 600, about 49% more; tensile strength follows at 800 MPa (116 ksi) vs 620 MPa (89.9 ksi). Nimonic 86 is the more ductile: elongation 48% versus 42% for Inconel 600, and Nimonic 86 is harder (195 HB vs 150 HB). Inconel 600 conducts heat better (14.9 W/m·K vs 10 W/m·K).

Nimonic 86Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Inconel 600 vs Nimonic 86: properties

Inconel 600Nimonic 86

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

214 GPa31 Msi
218 GPa31.6 Msi

Shear Modulus

76 GPa11 Msi
84 GPa12.2 Msi

Bulk Modulus

200 GPa29 Msi
172 GPa24.9 Msi

Poisson's Ratio

0.32
0.31

Tensile Strength (Ultimate)

620 MPa89.9 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
380 MPa55.1 ksi

Elongation at Break

42%
48%

Reduction in Area

60%
55%

Shear Strength

410 MPa59.5 ksi
520 MPa75.4 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

130 MPa·√m118 ksi·√in
—

Charpy V-Notch Impact (RT)

250 J184 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

150 HB
195 HB

Hardness, Rockwell B

78 HRB
92 HRB

Hardness, Vickers

—
205 HV

Physical

Density and transition temperatures.

Density

8.47 g/cm³0.31 lb/in³
8.5 g/cm³0.31 lb/in³

Melting Point (Solidus)

1,354°C2,469 °F
1,330°C2,426 °F

Liquidus Temperature

1,413°C2,575 °F
1,380°C2,516 °F

Thermal

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

Thermal Conductivity

14.9 W/m·K8.6 BTU/hr·ft·°F
10 W/m·K5.8 BTU/hr·ft·°F

Specific Heat Capacity

444 J/kg·K0.11 BTU/lb·°F
440 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13.3 µm/m·K7.4 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

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

Min Service Temperature

-250°C-418 °F
-196°C-321 °F

Same in both: Max Service Temperature (continuous) 1,100°C2,012 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.4 % IACS

Electrical Resistivity

1.03×10⁻⁶ Ω·m40.6 µΩ·in
1.24×10⁻⁶ Ω·m48.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.17 V
-0.15 V

Corrosion Resistance

78 / 100
80 / 100

Manufacturability

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

Machinability

28 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
12%

Weldability

80 / 100
75 / 100

Formability (cold)

78 / 100
65 / 100

Castability

30 / 100
35 / 100

Same in both: Brazeability / Solderability 65 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

150 MJ/kg64,488 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

11.5 kg CO₂/kg
14.5 kg CO₂/kg

Same in both: Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

73 kN·m/kg
94 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

152 kJ/m³
331 kJ/m³

Thermal Diffusivity

4 mm²/s
2.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleInconel 600Nimonic 86

Manufacturing and finishing

CapabilityInconel 600Nimonic 86
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

Inconel 600 vs Nimonic 86 — frequently asked

Is Nimonic 86 stronger than Inconel 600?

Yes. Nimonic 86 has a typical yield strength of 380 MPa (55.1 ksi) against 255 MPa (37 ksi) for Inconel 600 — about 49% more. Tensile strength is 800 MPa (116 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, Inconel 600 or Nimonic 86?

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, Inconel 600 or Nimonic 86?

Inconel 600, by a small margin. Both rate poor for machinability — 28/100 against 22/100 for Nimonic 86; for welding the order is Inconel 600 first (very good, 80/100) then Nimonic 86 (very good, 75/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Inconel 600 and Nimonic 86 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.