Drawing No. EH–MT–015 // Engineering Materials
HASTELLOY C-276 Properties
Reviewed August 2026
HASTELLOY C-276 is a nickel-molybdenum-chromium-tungsten alloy selected primarily for severe corrosion resistance while retaining useful mechanical strength.
Representative properties
The stated basis, temperature and direction are part of the value. Switch units without changing the physical reference.
What changes these properties?
Engineering variability
- Cold work raises strength because the alloy is not precipitation hardened by conventional heat treatment.
- Thermal conductivity is low and rises with temperature.
- High-temperature service must consider phase stability and oxidation as well as strength.
- Corrosion resistance depends on chemical species, concentration, temperature, aeration and weld condition.
Selection note
Strong candidate for aggressive chemical-processing, pollution-control and sour/corrosive environments where stainless steel or less-alloyed nickel grades are insufficient.
Where a property is shown as qualitative rather than numeric, that is intentional: the selected source or the material physics does not justify a single comparable scalar.
How to interpret this material
Stiffness
Young’s modulus describes elastic stiffness. For crystals and composites, orientation can make one scalar modulus only a directional reference.
Strength / failure
Ductile metals can use yield and tensile strength. Brittle ceramics/semiconductors and anisotropic composites require fracture, flexural or directional strength descriptions instead.
Thermal response
Conductivity, heat capacity and expansion are temperature dependent. The last column is a melting or transition descriptor only where that physical concept is appropriate.
Technical sources
The database favors manufacturer, industry, government or academic technical references and labels secondary condition-specific datasets when a primary source does not expose a complete property set.