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Nickel Alloy Hastelloy C276 vs Hastelloy N

Nickel Alloy · grade comparison

Nickel Alloy Hastelloy C276 and Hastelloy N are both nickel alloy grades. Hastelloy C276 is the stronger of the two: yield strength 360 MPa (52.2 ksi) against 320 MPa (46.4 ksi) for Hastelloy N, about 13% more. Hastelloy C276 is the more ductile: elongation 60% versus 50% for Hastelloy N. Hastelloy N conducts heat better (11.6 W/m·K vs 10.2 W/m·K). On the shop floor, Hastelloy C276 sits in a lower cost tier (premium, $$$) than Hastelloy N (high, $$$$).

Hastelloy C276Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Hastelloy C276 vs Hastelloy N: properties

Hastelloy C276Hastelloy N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
213 GPa30.9 Msi

Shear Modulus

79 GPa11.5 Msi
81 GPa11.7 Msi

Yield Strength (0.2% offset)

360 MPa52.2 ksi
320 MPa46.4 ksi

Elongation at Break

60%
50%

Reduction in Area

65%
55%

Shear Strength

480 MPa69.6 ksi
500 MPa72.5 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
310 MPa45 ksi

Fracture Toughness (K_IC)

200 MPa·√m182 ksi·√in
—

Charpy V-Notch Impact (RT)

190 J140 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

194 HB
195 HB

Hardness, Rockwell B

90 HRB
91 HRB

Same in both: Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31 · Tensile Strength (Ultimate) 790 MPa115 ksi

Physical

Density and transition temperatures.

Density

8.89 g/cm³0.32 lb/in³
8.86 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,323°C2,413 °F
1,300°C2,372 °F

Liquidus Temperature

1,371°C2,500 °F
1,400°C2,552 °F

Thermal

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

Thermal Conductivity

10.2 W/m·K5.9 BTU/hr·ft·°F
11.6 W/m·K6.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.2 µm/m·K6.2 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

650°C1,202 °F
704°C1,299 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

1.3 % IACS
1.4 % IACS

Electrical Resistivity

1.3×10⁻⁶ Ω·m51.2 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)

-0.05 V
-0.1 V

Corrosion Resistance

95 / 100
85 / 100

Manufacturability

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

Weldability

85 / 100
80 / 100

Formability (cold)

75 / 100
65 / 100

Castability

40 / 100
45 / 100

Brazeability / Solderability

65 / 100
60 / 100

Polishability

75 / 100
70 / 100

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

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

210 MJ/kg90,284 BTU/lb
165 MJ/kg70,937 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
12.5 kg CO₂/kg

Typical Recycled Content

40%
30%

Embodied Water

—
220 L/kg26.4 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

23.1 MN·m/kg
24 MN·m/kg

Modulus of Resilience

316 kJ/m³
240 kJ/m³

Thermal Diffusivity

2.7 mm²/s
3.1 mm²/s

Thermal Shock Resistance Index

4
3

Same in both: Specific Strength (UTS / density) 89 kN·m/kg

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 C276Hastelloy N

Manufacturing and finishing

CapabilityHastelloy C276Hastelloy N
CNC machiningYes—
Sheet metalYes—
Default conditionSolution Annealed—
Relative cost$$$ Premium$$$$ High
Min. machined wall1.5 mm—
Best machined surfaceRa 1.6 µm—
ElectropolishingYes—
HVOF CoatingYes—

They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

Hastelloy C276 vs Hastelloy N — frequently asked

Is Hastelloy C276 stronger than Hastelloy N?

Yes. Hastelloy C276 has a typical yield strength of 360 MPa (52.2 ksi) against 320 MPa (46.4 ksi) for Hastelloy N — about 13% more. Tensile strength is 790 MPa (115 ksi) vs 790 MPa (115 ksi).

Which is cheaper, Hastelloy C276 or Hastelloy N?

Hastelloy C276 is the lower-cost material: it sits in the premium tier ($$$) while Hastelloy N is high ($$$$). 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, Hastelloy C276 or Hastelloy N?

Hastelloy C276. Its weldability rates excellent (85/100) against very good (80/100) for Hastelloy N.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Hastelloy C276 and Hastelloy N 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.