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Nickel Alloy Nimonic 105 vs Waspaloy

Nickel Alloy · grade comparison

Nickel Alloy Nimonic 105 and Waspaloy are both nickel alloy grades. Nimonic 105 is the stronger of the two: yield strength 810 MPa (117 ksi) against 520 MPa (75.4 ksi) for Waspaloy, about 56% more; tensile strength follows at 1,150 MPa (167 ksi) vs 930 MPa (135 ksi). In exchange, Waspaloy is the more ductile: elongation 45% versus 22% for Nimonic 105, and Nimonic 105 is harder (333 HB vs 250 HB). Nimonic 105 runs hotter in service (950°C vs 650°C continuous). On the shop floor, Waspaloy welds better (fair vs poor) and Waspaloy sits in a lower cost tier (premium, $$$) than Nimonic 105 (high, $$$$).

Nimonic 105Choose it when strength drives the design, or when the part sees heat.

WaspaloyChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

Nimonic 105 vs Waspaloy: properties

Nimonic 105Waspaloy

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

222 GPa32.2 Msi
211 GPa30.6 Msi

Shear Modulus

85 GPa12.3 Msi
81 GPa11.7 Msi

Bulk Modulus

185 GPa26.8 Msi
176 GPa25.5 Msi

Tensile Strength (Ultimate)

1,150 MPa167 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

810 MPa117 ksi
520 MPa75.4 ksi

Elongation at Break

22%
45%

Reduction in Area

25%
52%

Shear Strength

700 MPa102 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

450 MPa65.3 ksi
360 MPa52.2 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
65 J47.9 ft·lbf

Hardness, Brinell

333 HB
250 HB

Hardness, Rockwell C

36 HRC
24 HRC

Hardness, Vickers

350 HV
262 HV

Same in both: Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Density

8 g/cm³0.29 lb/in³
8.19 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,290°C2,354 °F
1,330°C2,426 °F

Liquidus Temperature

1,345°C2,453 °F
1,360°C2,480 °F

Thermal

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

Specific Heat Capacity

419 J/kg·K0.1 BTU/lb·°F
480 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.8 µm/m·K6.6 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

950°C1,742 °F
650°C1,202 °F

Latent Heat of Fusion

—
290 J/g125 BTU/lb

Same in both: Thermal Conductivity 10.7 W/m·K6.2 BTU/hr·ft·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.3×10⁻⁶ Ω·m51.2 µΩ·in
1.24×10⁻⁶ Ω·m48.8 µΩ·in

Electrical Conductivity

—
1.4 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.1 V

Corrosion Resistance

70 / 100
74 / 100

Manufacturability

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

Machinability

12 / 100
18 / 100

Machinability Rating (AISI 1212 = 100 %)

8%
11%

Weldability

15 / 100
35 / 100

Formability (cold)

12 / 100
45 / 100

Castability

35 / 100
40 / 100

Brazeability / Solderability

40 / 100
50 / 100

Same in both: Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

16 kg CO₂/kg
15.5 kg CO₂/kg

Typical Recycled Content

30%
35%

Same in both: Embodied Energy (primary production) 235 MJ/kg101,032 BTU/lb · Embodied Water 320 L/kg38.3 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

144 kN·m/kg
114 kN·m/kg

Specific Stiffness (E / density)

27.8 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

1,478 kJ/m³
641 kJ/m³

Thermal Diffusivity

3.2 mm²/s
2.7 mm²/s

Thermal Shock Resistance Index

5
4

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 scaleWaspaloyNimonic 105

Manufacturing and finishing

CapabilityNimonic 105Waspaloy
CNC machining—Yes
Sheet metal—Yes
Default condition—Solution Annealed
Relative cost$$$$ High$$$ Premium
Min. machined wall—1.5 mm
Best machined surface—Ra 1.6 µm
Electropolishing—Yes
HVOF Coating—Yes

They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

Nimonic 105 vs Waspaloy — frequently asked

Is Nimonic 105 stronger than Waspaloy?

Yes. Nimonic 105 has a typical yield strength of 810 MPa (117 ksi) against 520 MPa (75.4 ksi) for Waspaloy — about 56% more. Tensile strength is 1,150 MPa (167 ksi) vs 930 MPa (135 ksi).

Which is cheaper, Nimonic 105 or Waspaloy?

Waspaloy is the lower-cost material: it sits in the premium tier ($$$) while Nimonic 105 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, Nimonic 105 or Waspaloy?

Waspaloy. Its machinability rates poor (18/100) against not recommended (12/100) for Nimonic 105; for welding the order is Waspaloy first (fair, 35/100) then Nimonic 105 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Nimonic 105 and Waspaloy 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.