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Nickel Alloy Alloy 22 vs Alloy 59

Nickel Alloy · grade comparison

Nickel Alloy Alloy 22 and Alloy 59 are both nickel alloy grades. Alloy 22 is the stronger of the two: yield strength 400 MPa (58 ksi) against 360 MPa (52.2 ksi) for Alloy 59, about 11% more; tensile strength follows at 800 MPa (116 ksi) vs 740 MPa (107 ksi). Alloy 22 is the more ductile: elongation 62% versus 50% for Alloy 59. Alloy 59 runs hotter in service (1,000°C vs 675°C continuous) and Alloy 22 conducts electricity better (1.5 % IACS vs 1.3 % IACS).

Alloy 22Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Alloy 59Choose it when the part sees heat.

Alloy 22 vs Alloy 59: properties

Alloy 22Alloy 59

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

206 GPa29.9 Msi
210 GPa30.5 Msi

Bulk Modulus

155 GPa22.5 Msi
184 GPa26.7 Msi

Poisson's Ratio

0.28
0.31

Tensile Strength (Ultimate)

800 MPa116 ksi
740 MPa107 ksi

Yield Strength (0.2% offset)

400 MPa58 ksi
360 MPa52.2 ksi

Elongation at Break

62%
50%

Compressive Strength

400 MPa58 ksi
360 MPa52.2 ksi

Shear Strength

520 MPa75.4 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

340 MPa49.3 ksi
300 MPa43.5 ksi

Charpy V-Notch Impact (RT)

250 J184 ft·lbf
200 J148 ft·lbf

Hardness, Rockwell B

88 HRB
92 HRB

Same in both: Shear Modulus 80 GPa11.6 Msi · Reduction in Area 65% · Hardness, Brinell 200 HB · Hardness, Vickers 210 HV

Physical

Density and transition temperatures.

Density

8.69 g/cm³0.31 lb/in³
8.6 g/cm³0.31 lb/in³

Melting Point (Solidus)

1,357°C2,475 °F
1,310°C2,390 °F

Liquidus Temperature

1,399°C2,550 °F
1,360°C2,480 °F

Thermal

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

Thermal Conductivity

10.1 W/m·K5.8 BTU/hr·ft·°F
10.4 W/m·K6 BTU/hr·ft·°F

Specific Heat Capacity

414 J/kg·K0.1 BTU/lb·°F
420 J/kg·K0.1 BTU/lb·°F

Latent Heat of Fusion

285 J/g123 BTU/lb
290 J/g125 BTU/lb

Max Service Temperature (continuous)

675°C1,247 °F
1,000°C1,832 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12.4 µm/m·K6.9 µin/in·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.5 % IACS
1.3 % IACS

Electrical Resistivity

1.14×10⁻⁶ Ω·m44.9 µΩ·in
1.29×10⁻⁶ Ω·m50.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.08 V · Corrosion Resistance 93 / 100

Manufacturability

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

Machinability

15 / 100
18 / 100

Weldability

85 / 100
88 / 100

Formability (cold)

70 / 100
75 / 100

Castability

35 / 100
—

Brazeability / Solderability

50 / 100
60 / 100

Polishability

75 / 100
80 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 12%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

145 MJ/kg62,339 BTU/lb
180 MJ/kg77,386 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
250 L/kg30 gal/lb

Same in both: Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

92 kN·m/kg
86 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
24.4 MN·m/kg

Modulus of Resilience

388 kJ/m³
309 kJ/m³

Thermal Diffusivity

2.8 mm²/s
2.9 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 scaleAlloy 22Alloy 59

Manufacturing and finishing

CapabilityAlloy 22Alloy 59
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

Alloy 22 vs Alloy 59 — frequently asked

Is Alloy 22 stronger than Alloy 59?

Yes. Alloy 22 has a typical yield strength of 400 MPa (58 ksi) against 360 MPa (52.2 ksi) for Alloy 59 — about 11% more. Tensile strength is 800 MPa (116 ksi) vs 740 MPa (107 ksi).

Which is cheaper, Alloy 22 or Alloy 59?

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 Alloy 22 over Alloy 59?

Pick Alloy 22 when strength drives the design, or when the part is bent, formed or impact-loaded. Pick Alloy 59 when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Alloy 22 and Alloy 59 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.