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Nickel Alloy Alloy 22 vs Hastelloy C-2000

Nickel Alloy · grade comparison

Nickel Alloy Alloy 22 and Hastelloy C-2000 are both nickel alloy grades. Alloy 22 is the stronger of the two: yield strength 400 MPa (58 ksi) against 355 MPa (51.5 ksi) for Hastelloy C-2000, about 13% more; tensile strength follows at 800 MPa (116 ksi) vs 760 MPa (110 ksi). Alloy 22 is harder — 200 HB against 175 HB for Hastelloy C-2000 — which matters for wear surfaces and threads.

Alloy 22Choose it when strength drives the design, or when surface hardness matters.

Alloy 22 vs Hastelloy C-2000: properties

Alloy 22Hastelloy C-2000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

206 GPa29.9 Msi
207 GPa30 Msi

Shear Modulus

80 GPa11.6 Msi
79 GPa11.5 Msi

Bulk Modulus

155 GPa22.5 Msi
182 GPa26.4 Msi

Poisson's Ratio

0.28
0.31

Tensile Strength (Ultimate)

800 MPa116 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

400 MPa58 ksi
355 MPa51.5 ksi

Compressive Strength

400 MPa58 ksi
360 MPa52.2 ksi

Shear Strength

520 MPa75.4 ksi
460 MPa66.7 ksi

Fatigue Strength (Endurance Limit)

340 MPa49.3 ksi
300 MPa43.5 ksi

Hardness, Brinell

200 HB
175 HB

Hardness, Vickers

210 HV
185 HV

Same in both: Elongation at Break 62% · Reduction in Area 65% · Charpy V-Notch Impact (RT) 250 J184 ft·lbf · Hardness, Rockwell B 88 HRB

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,357°C2,475 °F
1,328°C2,422 °F

Liquidus Temperature

1,399°C2,550 °F
1,358°C2,476 °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
9.1 W/m·K5.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12.4 µm/m·K6.9 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

675°C1,247 °F
700°C1,292 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.5 % IACS
1.4 % IACS

Electrical Resistivity

1.14×10⁻⁶ Ω·m44.9 µΩ·in
1.28×10⁻⁶ Ω·m50.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.08 V
-0.1 V

Same in both: Corrosion Resistance 93 / 100

Manufacturability

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

Machinability

15 / 100
18 / 100

Formability (cold)

70 / 100
78 / 100

Brazeability / Solderability

50 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 12% · Weldability 85 / 100 · Castability 35 / 100 · Polishability 75 / 100

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
13 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

40%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

92 kN·m/kg
89 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
24.4 MN·m/kg

Modulus of Resilience

388 kJ/m³
304 kJ/m³

Thermal Diffusivity

2.8 mm²/s
2.5 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 22Hastelloy C-2000

Manufacturing and finishing

CapabilityAlloy 22Hastelloy C-2000
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 Hastelloy C-2000 — frequently asked

Is Alloy 22 stronger than Hastelloy C-2000?

Yes. Alloy 22 has a typical yield strength of 400 MPa (58 ksi) against 355 MPa (51.5 ksi) for Hastelloy C-2000 — about 13% more. Tensile strength is 800 MPa (116 ksi) vs 760 MPa (110 ksi).

Which is cheaper, Alloy 22 or Hastelloy C-2000?

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 Hastelloy C-2000?

Pick Alloy 22 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Alloy 22 and Hastelloy C-2000 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.