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Nickel Alloy Hastelloy C-2000 vs Hastelloy X

Nickel Alloy · grade comparison

Nickel Alloy Hastelloy C-2000 and Hastelloy X are both nickel alloy grades. Both yield at about 355 MPa — strength does not separate them. Hastelloy C-2000 is the more ductile: elongation 62% versus 43% for Hastelloy X, and Hastelloy X is harder (195 HB vs 175 HB). Hastelloy X is lighter (8.22 g/cm³ vs 8.5 g/cm³ for Hastelloy C-2000) and Hastelloy X runs hotter in service (1,150°C vs 700°C continuous). On the shop floor, Hastelloy X sits in a lower cost tier (premium, $$$) than Hastelloy C-2000 (high, $$$$).

Hastelloy C-2000Choose it when the part is bent, formed or impact-loaded.

Hastelloy XChoose it when weight is the constraint, or when the part sees heat.

Hastelloy C-2000 vs Hastelloy X: properties

Hastelloy C-2000Hastelloy X

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

207 GPa30 Msi
205 GPa29.7 Msi

Bulk Modulus

182 GPa26.4 Msi
190 GPa27.6 Msi

Poisson's Ratio

0.31
0.32

Tensile Strength (Ultimate)

760 MPa110 ksi
755 MPa110 ksi

Yield Strength (0.2% offset)

355 MPa51.5 ksi
360 MPa52.2 ksi

Elongation at Break

62%
43%

Reduction in Area

65%
55%

Compressive Strength

360 MPa52.2 ksi
370 MPa53.7 ksi

Shear Strength

460 MPa66.7 ksi
490 MPa71.1 ksi

Charpy V-Notch Impact (RT)

250 J184 ft·lbf
100 J73.8 ft·lbf

Hardness, Brinell

175 HB
195 HB

Hardness, Rockwell B

88 HRB
90 HRB

Hardness, Vickers

185 HV
205 HV

Fracture Toughness (K_IC)

—
120 MPa·√m109 ksi·√in

Same in both: Shear Modulus 79 GPa11.5 Msi · Fatigue Strength (Endurance Limit) 300 MPa43.5 ksi

Physical

Density and transition temperatures.

Density

8.5 g/cm³0.31 lb/in³
8.22 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,328°C2,422 °F
1,260°C2,300 °F

Liquidus Temperature

1,358°C2,476 °F
1,355°C2,471 °F

Thermal

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

Specific Heat Capacity

428 J/kg·K0.1 BTU/lb·°F
486 J/kg·K0.12 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

12.2 µm/m·K6.8 µin/in·°F
13.9 µm/m·K7.7 µin/in·°F

Max Service Temperature (continuous)

700°C1,292 °F
1,150°C2,102 °F

Same in both: Thermal Conductivity 9.1 W/m·K5.3 BTU/hr·ft·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.4 % IACS
1.5 % IACS

Electrical Resistivity

1.28×10⁻⁶ Ω·m50.4 µΩ·in
1.18×10⁻⁶ Ω·m46.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
76 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

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

Formability (cold)

78 / 100
70 / 100

Castability

35 / 100
55 / 100

Brazeability / Solderability

60 / 100
80 / 100

Polishability

75 / 100
70 / 100

Same in both: Machinability 18 / 100 · Machinability Rating (AISI 1212 = 100 %) 12% · Weldability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

180 MJ/kg77,386 BTU/lb
215 MJ/kg92,433 BTU/lb

Embodied Carbon (primary production)

13 kg CO₂/kg
13.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
520 L/kg62.3 gal/lb

Same in both: Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

89 kN·m/kg
92 kN·m/kg

Specific Stiffness (E / density)

24.4 MN·m/kg
24.9 MN·m/kg

Modulus of Resilience

304 kJ/m³
316 kJ/m³

Thermal Diffusivity

2.5 mm²/s
2.3 mm²/s

Thermal Shock Resistance Index

3
2

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 scaleHastelloy XHastelloy C-2000

Manufacturing and finishing

CapabilityHastelloy C-2000Hastelloy X
CNC machining—Yes
Sheet metal—Yes
3D printing—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.

Hastelloy C-2000 vs Hastelloy X — frequently asked

What is the difference between Hastelloy C-2000 and Hastelloy X?

Nickel Alloy Hastelloy C-2000 and Hastelloy X are both nickel alloy grades. Both yield at about 355 MPa — strength does not separate them. Hastelloy C-2000 is the more ductile: elongation 62% versus 43% for Hastelloy X, and Hastelloy X is harder (195 HB vs 175 HB).

Which is cheaper, Hastelloy C-2000 or Hastelloy X?

Hastelloy X is the lower-cost material: it sits in the premium tier ($$$) while Hastelloy C-2000 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose Hastelloy C-2000 over Hastelloy X?

Pick Hastelloy C-2000 when the part is bent, formed or impact-loaded. Pick Hastelloy X when weight is the constraint, or when the part sees heat.

Ready to make it?

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