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Nickel Alloy MP35N vs Waspaloy

Nickel Alloy · grade comparison

Nickel Alloy MP35N and Waspaloy are both nickel alloy grades. MP35N is the stronger of the two: yield strength 1,790 MPa (260 ksi) against 520 MPa (75.4 ksi) for Waspaloy, about 3.4 times as much; tensile strength follows at 1,930 MPa (280 ksi) vs 930 MPa (135 ksi). In exchange, Waspaloy is the more ductile: elongation 45% versus 10% for MP35N, and MP35N is harder (480 HB vs 250 HB). MP35N is stiffer (233 GPa vs 211 GPa) and Waspaloy runs hotter in service (650°C vs 425°C continuous). On the shop floor, Waspaloy welds better (fair vs poor) and Waspaloy sits in a lower cost tier (premium, $$$) than MP35N (high, $$$$).

MP35NChoose it when strength drives the design.

WaspaloyChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

MP35N vs Waspaloy: properties

MP35NWaspaloy

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

233 GPa33.8 Msi
211 GPa30.6 Msi

Shear Modulus

87 GPa12.6 Msi
81 GPa11.7 Msi

Bulk Modulus

259 GPa37.6 Msi
176 GPa25.5 Msi

Poisson's Ratio

0.35
0.3

Tensile Strength (Ultimate)

1,930 MPa280 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

1,790 MPa260 ksi
520 MPa75.4 ksi

Elongation at Break

10%
45%

Reduction in Area

45%
52%

Compressive Strength

1,800 MPa261 ksi
—

Shear Strength

1,120 MPa162 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

790 MPa115 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)

40 J29.5 ft·lbf
65 J47.9 ft·lbf

Hardness, Brinell

480 HB
250 HB

Hardness, Rockwell C

50 HRC
24 HRC

Hardness, Vickers

520 HV
262 HV

Physical

Density and transition temperatures.

Density

8.43 g/cm³0.3 lb/in³
8.19 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,315°C2,399 °F
1,330°C2,426 °F

Liquidus Temperature

1,440°C2,624 °F
1,360°C2,480 °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
10.7 W/m·K6.2 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

425°C797 °F
650°C1,202 °F

Min Service Temperature

-253°C-423 °F
-196°C-321 °F

Latent Heat of Fusion

—
290 J/g125 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.4 % IACS

Electrical Resistivity

1.03×10⁻⁶ Ω·m40.6 µΩ·in
1.24×10⁻⁶ Ω·m48.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.1 V

Corrosion Resistance

92 / 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

25 / 100
35 / 100

Formability (cold)

10 / 100
45 / 100

Castability

20 / 100
40 / 100

Brazeability / Solderability

45 / 100
50 / 100

Polishability

88 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

230 MJ/kg98,882 BTU/lb
235 MJ/kg101,032 BTU/lb

Embodied Carbon (primary production)

16 kg CO₂/kg
15.5 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
320 L/kg38.3 gal/lb

Typical Recycled Content

20%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

229 kN·m/kg
114 kN·m/kg

Specific Stiffness (E / density)

27.6 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

6,876 kJ/m³
641 kJ/m³

Thermal Diffusivity

2.9 mm²/s
2.7 mm²/s

Thermal Shock Resistance Index

7
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 scaleWaspaloyMP35N

Manufacturing and finishing

CapabilityMP35NWaspaloy
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.

MP35N vs Waspaloy — frequently asked

Is MP35N stronger than Waspaloy?

Yes. MP35N has a typical yield strength of 1,790 MPa (260 ksi) against 520 MPa (75.4 ksi) for Waspaloy — about 3.4 times as much. Tensile strength is 1,930 MPa (280 ksi) vs 930 MPa (135 ksi).

Which is cheaper, MP35N or Waspaloy?

Waspaloy is the lower-cost material: it sits in the premium tier ($$$) while MP35N is high ($$$$). 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, MP35N or Waspaloy?

Waspaloy. Its machinability rates poor (18/100) against not recommended (12/100) for MP35N; for welding the order is Waspaloy first (fair, 35/100) then MP35N (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in MP35N 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.