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Nickel Alloy Incoloy 800H vs Inconel 601

Nickel Alloy · grade comparison

Nickel Alloy Incoloy 800H and Inconel 601 are both nickel alloy grades. Inconel 601 is the stronger of the two: yield strength 310 MPa (45 ksi) against 220 MPa (31.9 ksi) for Incoloy 800H, about 41% more; tensile strength follows at 690 MPa (100 ksi) vs 520 MPa (75.4 ksi). Inconel 601 is harder — 150 HB against 140 HB for Incoloy 800H — which matters for wear surfaces and threads. Incoloy 800H conducts electricity better (1.7 % IACS vs 1.5 % IACS).

Inconel 601Choose it when strength drives the design, or when surface hardness matters.

Incoloy 800H vs Inconel 601: properties

Incoloy 800HInconel 601

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

196 GPa28.4 Msi
206 GPa29.9 Msi

Shear Modulus

75 GPa10.9 Msi
79 GPa11.5 Msi

Bulk Modulus

200 GPa29 Msi
180 GPa26.1 Msi

Poisson's Ratio

0.34
0.31

Tensile Strength (Ultimate)

520 MPa75.4 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
310 MPa45 ksi

Reduction in Area

55%
60%

Shear Strength

380 MPa55.1 ksi
470 MPa68.2 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
290 MPa42.1 ksi

Fracture Toughness (K_IC)

200 MPa·√m182 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

150 J111 ft·lbf
170 J125 ft·lbf

Hardness, Brinell

140 HB
150 HB

Hardness, Rockwell B

78 HRB
80 HRB

Hardness, Vickers

150 HV
160 HV

Same in both: Elongation at Break 45%

Physical

Density and transition temperatures.

Density

7.94 g/cm³0.29 lb/in³
8.11 g/cm³0.29 lb/in³

Melting Point (Solidus)

1,357°C2,475 °F
1,360°C2,480 °F

Liquidus Temperature

1,385°C2,525 °F
1,411°C2,572 °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
11.2 W/m·K6.5 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

14.4 µm/m·K8 µin/in·°F
13.8 µm/m·K7.7 µin/in·°F

Latent Heat of Fusion

285 J/g123 BTU/lb
—

Max Service Temperature (continuous)

1,100°C2,012 °F
1,150°C2,102 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.5 % IACS

Electrical Resistivity

9.89×10⁻⁷ Ω·m38.9 µΩ·in
1.19×10⁻⁶ Ω·m46.9 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

76 / 100
78 / 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

30 / 100
28 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
13%

Weldability

80 / 100
78 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

65 / 100
70 / 100

Castability

—
25 / 100

Same in both: Formability (cold) 72 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

105 MJ/kg45,142 BTU/lb
145 MJ/kg62,339 BTU/lb

Embodied Carbon (primary production)

9 kg CO₂/kg
13 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
85 kN·m/kg

Specific Stiffness (E / density)

24.7 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

123 kJ/m³
233 kJ/m³

Thermal Shock Resistance Index

2
3

Same in both: Thermal Diffusivity 3.1 mm²/s

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 601Incoloy 800H

Manufacturing and finishing

CapabilityIncoloy 800HInconel 601
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 601 — frequently asked

Is Inconel 601 stronger than Incoloy 800H?

Yes. Inconel 601 has a typical yield strength of 310 MPa (45 ksi) against 220 MPa (31.9 ksi) for Incoloy 800H — about 41% more. Tensile strength is 690 MPa (100 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, Incoloy 800H or Inconel 601?

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 601?

Pick Inconel 601 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 601 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.