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Nickel Alloy Inconel 601 vs NiCr26MoW

Nickel Alloy · grade comparison

Nickel Alloy Inconel 601 and NiCr26MoW are both nickel alloy grades. NiCr26MoW is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 310 MPa (45 ksi) for Inconel 601, about 13% more; tensile strength follows at 730 MPa (106 ksi) vs 690 MPa (100 ksi). NiCr26MoW is harder — 180 HB against 150 HB for Inconel 601 — which matters for wear surfaces and threads. Inconel 601 is lighter (8.11 g/cm³ vs 8.5 g/cm³ for NiCr26MoW).

Inconel 601Choose it when weight is the constraint.

NiCr26MoWChoose it when strength drives the design, or when surface hardness matters.

Inconel 601 vs NiCr26MoW: properties

Inconel 601NiCr26MoW

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

206 GPa29.9 Msi
210 GPa30.5 Msi

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Bulk Modulus

180 GPa26.1 Msi
175 GPa25.4 Msi

Poisson's Ratio

0.31
0.3

Tensile Strength (Ultimate)

690 MPa100 ksi
730 MPa106 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
350 MPa50.8 ksi

Reduction in Area

60%
55%

Shear Strength

470 MPa68.2 ksi
480 MPa69.6 ksi

Fatigue Strength (Endurance Limit)

290 MPa42.1 ksi
300 MPa43.5 ksi

Charpy V-Notch Impact (RT)

170 J125 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

150 HB
180 HB

Hardness, Rockwell B

80 HRB
88 HRB

Hardness, Vickers

160 HV
190 HV

Same in both: Elongation at Break 45% · Fracture Toughness (K_IC) 110 MPa·√m100 ksi·√in

Physical

Density and transition temperatures.

Density

8.11 g/cm³0.29 lb/in³
8.5 g/cm³0.31 lb/in³

Melting Point (Solidus)

1,360°C2,480 °F
1,340°C2,444 °F

Liquidus Temperature

1,411°C2,572 °F
1,385°C2,525 °F

Thermal

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

Thermal Conductivity

11.2 W/m·K6.5 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

13.8 µm/m·K7.7 µin/in·°F
13.5 µm/m·K7.5 µin/in·°F

Latent Heat of Fusion

—
290 J/g125 BTU/lb

Same in both: Max Service Temperature (continuous) 1,150°C2,102 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.5 % IACS
1.5 % IACS

Electrical Resistivity

1.19×10⁻⁶ Ω·m46.9 µΩ·in
1.15×10⁻⁶ Ω·m45.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.12 V

Corrosion Resistance

78 / 100
85 / 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 %)

13%
12%

Weldability

78 / 100
70 / 100

Formability (cold)

72 / 100
65 / 100

Castability

25 / 100
40 / 100

Same in both: Brazeability / Solderability 60 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

145 MJ/kg62,339 BTU/lb
155 MJ/kg66,638 BTU/lb

Embodied Carbon (primary production)

13 kg CO₂/kg
12.5 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)

85 kN·m/kg
86 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
24.7 MN·m/kg

Modulus of Resilience

233 kJ/m³
292 kJ/m³

Thermal Diffusivity

3.1 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 601NiCr26MoW

Manufacturing and finishing

CapabilityInconel 601NiCr26MoW
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 601 vs NiCr26MoW — frequently asked

Is NiCr26MoW stronger than Inconel 601?

Yes. NiCr26MoW has a typical yield strength of 350 MPa (50.8 ksi) against 310 MPa (45 ksi) for Inconel 601 — about 13% more. Tensile strength is 730 MPa (106 ksi) vs 690 MPa (100 ksi).

Which is cheaper, Inconel 601 or NiCr26MoW?

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 601 or NiCr26MoW?

Inconel 601, by a small margin. Both rate poor for machinability — 28/100 against 22/100 for NiCr26MoW; for welding the order is Inconel 601 first (very good, 78/100) then NiCr26MoW (very good, 70/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Inconel 601 and NiCr26MoW 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.