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Nickel Alloy Incoloy 800H vs Inconel 600

Nickel Alloy · grade comparison

Nickel Alloy Incoloy 800H and Inconel 600 are both nickel alloy grades. Inconel 600 is the stronger of the two: yield strength 255 MPa (37 ksi) against 220 MPa (31.9 ksi) for Incoloy 800H, about 16% more; tensile strength follows at 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi). Inconel 600 is harder — 150 HB against 140 HB for Incoloy 800H — which matters for wear surfaces and threads. Incoloy 800H is lighter (7.94 g/cm³ vs 8.47 g/cm³ for Inconel 600) and Inconel 600 is stiffer (214 GPa vs 196 GPa).

Incoloy 800HChoose it when weight is the constraint.

Inconel 600Choose it when strength drives the design, or when surface hardness matters.

Incoloy 800H vs Inconel 600: properties

Incoloy 800HInconel 600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

196 GPa28.4 Msi
214 GPa31 Msi

Shear Modulus

75 GPa10.9 Msi
76 GPa11 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

520 MPa75.4 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
255 MPa37 ksi

Elongation at Break

45%
42%

Reduction in Area

55%
60%

Shear Strength

380 MPa55.1 ksi
410 MPa59.5 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
280 MPa40.6 ksi

Fracture Toughness (K_IC)

200 MPa·√m182 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

150 J111 ft·lbf
250 J184 ft·lbf

Hardness, Brinell

140 HB
150 HB

Hardness, Vickers

150 HV
—

Same in both: Bulk Modulus 200 GPa29 Msi · Hardness, Rockwell B 78 HRB

Physical

Density and transition temperatures.

Density

7.94 g/cm³0.29 lb/in³
8.47 g/cm³0.31 lb/in³

Melting Point (Solidus)

1,357°C2,475 °F
1,354°C2,469 °F

Liquidus Temperature

1,385°C2,525 °F
1,413°C2,575 °F

Thermal

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

Thermal Conductivity

11.5 W/m·K6.6 BTU/hr·ft·°F
14.9 W/m·K8.6 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

14.4 µm/m·K8 µin/in·°F
13.3 µm/m·K7.4 µin/in·°F

Latent Heat of Fusion

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

Min Service Temperature

-196°C-321 °F
-250°C-418 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.7 % IACS

Electrical Resistivity

9.89×10⁻⁷ Ω·m38.9 µΩ·in
1.03×10⁻⁶ Ω·m40.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.17 V

Corrosion Resistance

76 / 100
78 / 100

Manufacturability

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

Machinability

30 / 100
28 / 100

Formability (cold)

72 / 100
78 / 100

Brazeability / Solderability

55 / 100
65 / 100

Polishability

65 / 100
70 / 100

Castability

—
30 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 25% · Weldability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

105 MJ/kg45,142 BTU/lb
150 MJ/kg64,488 BTU/lb

Embodied Carbon (primary production)

9 kg CO₂/kg
11.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
320 L/kg38.3 gal/lb

Typical Recycled Content

35%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

65 kN·m/kg
73 kN·m/kg

Specific Stiffness (E / density)

24.7 MN·m/kg
25.3 MN·m/kg

Modulus of Resilience

123 kJ/m³
152 kJ/m³

Thermal Diffusivity

3.1 mm²/s
4 mm²/s

Thermal Shock Resistance Index

2
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 600Incoloy 800H

Manufacturing and finishing

CapabilityIncoloy 800HInconel 600
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

Incoloy 800H vs Inconel 600 — frequently asked

Is Inconel 600 stronger than Incoloy 800H?

Yes. Inconel 600 has a typical yield strength of 255 MPa (37 ksi) against 220 MPa (31.9 ksi) for Incoloy 800H — about 16% more. Tensile strength is 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, Incoloy 800H or Inconel 600?

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 Incoloy 800H over Inconel 600?

Pick Incoloy 800H when weight is the constraint. Pick Inconel 600 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Incoloy 800H and Inconel 600 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.