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Nickel Alloy Nimonic 80A vs Waspaloy

Nickel Alloy · grade comparison

Nickel Alloy Nimonic 80A and Waspaloy are both nickel alloy grades. Nimonic 80A is the stronger of the two: yield strength 700 MPa (102 ksi) against 520 MPa (75.4 ksi) for Waspaloy, about 35% more; tensile strength follows at 1,100 MPa (160 ksi) vs 930 MPa (135 ksi). In exchange, Waspaloy is the more ductile: elongation 45% versus 27% for Nimonic 80A, and Nimonic 80A is harder (310 HB vs 250 HB). Nimonic 80A runs hotter in service (815°C vs 650°C continuous). On the shop floor, Waspaloy sits in a lower cost tier (premium, $$$) than Nimonic 80A (high, $$$$).

Nimonic 80AChoose 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 cost is the deciding factor.

Nimonic 80A vs Waspaloy: properties

Nimonic 80AWaspaloy

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

180 GPa26.1 Msi
176 GPa25.5 Msi

Poisson's Ratio

0.31
0.3

Tensile Strength (Ultimate)

1,100 MPa160 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

700 MPa102 ksi
520 MPa75.4 ksi

Elongation at Break

27%
45%

Reduction in Area

35%
52%

Shear Strength

680 MPa98.6 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

440 MPa63.8 ksi
360 MPa52.2 ksi

Fracture Toughness (K_IC)

95 MPa·√m86.5 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
65 J47.9 ft·lbf

Hardness, Brinell

310 HB
250 HB

Hardness, Rockwell C

33 HRC
24 HRC

Hardness, Vickers

325 HV
262 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,360°C2,480 °F
1,330°C2,426 °F

Liquidus Temperature

1,390°C2,534 °F
1,360°C2,480 °F

Same in both: Density 8.19 g/cm³0.3 lb/in³

Thermal

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

Thermal Conductivity

11.2 W/m·K6.5 BTU/hr·ft·°F
10.7 W/m·K6.2 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12.7 µm/m·K7.1 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

815°C1,499 °F
650°C1,202 °F

Same in both: Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1.4 % IACS · Electrical Resistivity 1.24×10⁻⁶ Ω·m48.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.13 V
-0.1 V

Corrosion Resistance

75 / 100
74 / 100

Manufacturability

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

Machinability

15 / 100
18 / 100

Machinability Rating (AISI 1212 = 100 %)

12%
11%

Weldability

30 / 100
35 / 100

Formability (cold)

30 / 100
45 / 100

Brazeability / Solderability

45 / 100
50 / 100

Polishability

75 / 100
70 / 100

Castability

—
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
235 MJ/kg101,032 BTU/lb

Embodied Carbon (primary production)

13.5 kg CO₂/kg
15.5 kg CO₂/kg

Embodied Water

1,400 L/kg168 gal/lb
320 L/kg38.3 gal/lb

Same in both: Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

134 kN·m/kg
114 kN·m/kg

Specific Stiffness (E / density)

27.1 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

1,104 kJ/m³
641 kJ/m³

Thermal Diffusivity

3.1 mm²/s
2.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 80A

Manufacturing and finishing

CapabilityNimonic 80AWaspaloy
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 80A vs Waspaloy — frequently asked

Is Nimonic 80A stronger than Waspaloy?

Yes. Nimonic 80A has a typical yield strength of 700 MPa (102 ksi) against 520 MPa (75.4 ksi) for Waspaloy — about 35% more. Tensile strength is 1,100 MPa (160 ksi) vs 930 MPa (135 ksi).

Which is cheaper, Nimonic 80A or Waspaloy?

Waspaloy is the lower-cost material: it sits in the premium tier ($$$) while Nimonic 80A is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, Nimonic 80A or Waspaloy?

Waspaloy. Its weldability rates fair (35/100) against poor (30/100) for Nimonic 80A.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Nimonic 80A 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.