Hastelloy C276

Hastelloy C-276 is wrought from a nickel-molybdenum-chromium combination. The metal was designed to be an improvement over Alloy C. Unlike Alloy C, Hastelloy C-276 does not require heat treatment after it is welded. It is often utilized as a multipurpose solution to mixed conditions where any number of corrosions, oxidation and interacting media might occur. Its corrosion resistance is also used in strong chemical environments such as chemical processing plants. Additionally, C-276 is one of the few nickel alloys that displays resistance against chlorine, along with pitting, cracking and creeping from other acids. Its extraordinary resistance to all these substances comes from an addition of tungsten in its composition.
While Hastelloy C-276 is the most universally resistant substance to corrosion that is currently available, it is not infallible. The metal should not be exposed to high temperature, highly acidic environments. Similarly, it is more easily worked with cold-working practices; hot-working hardens it more easily. If hot working, temperatures should be kept between 1600°F and 2250°F.

Pharmaceutical Industry

Specifications – Hastelloy C276

StandardHastelloy C276
UNSN10276
Werkstoff Nr.2.4819
ENNiMo16Cr15W
GOSTХН65МВУ
JISNW 0276
ORЭП760

Physical Properties – Hastelloy C276

Density 8.89 g/cm 3 / 0.321 lb/in 3
Melting Point 1325 -1370 (°C) / 2415 – 2500 (°F)
Specific Heat @ 70°F0.102 Btu/lb/°F
Thermal Conductivity @ 70°F67.9 Btu•in/h/ft2/°F
Young’s Modulus 103ksi29.8
Shear Modulus 103ksi11.4
Permeability (15.9 kA/m) 1.0002 (200 oersted)
Poisson’s Ratio 0.307
Annealed1121 (°C) / 2050 (°F)
QuenchRapid Air/Water

Chemical Composition – Hastelloy C276

ElementHastelloy C276
NiBal* (50.99 min)
Mo15.0 – 17.0
Cr14.5 – 16.5
Fe4.0 – 7.0
W3.0 – 4.5
Co2.5
C0.010
Si0.08
Mn1.0
V0.35
P0.04
S0.03

*Calculated . For Reference only.

Gas industry

Hastelloy C276 Products