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Alloy C276

Hastelloy C-276 is a nickel-molybdenum-chromium-tungsten alloy with excellent general corrosion resistance and good fabricability. The alloy used in various environments where resistance to hot contaminated mineral acids, organic and inorganic chloride-contaminated media, chlorine, formic and acetic acids, acetic, acetic anhydride, sea water and brine solutions is desired.

Quken offers C-276 in following forms:

Product FormStandardSize Available (mm)
StripASME SB5750.05~3.0*3~540*C
SheetASME SB5751~6*1000~2000*2000~6000
PlateASME SB5756~25*1000~2000*2000~6000
FlangesASME SB366Custom
Seamless Pipe/TubeASME SB622φ5~219*0.5~8.18*9000 Max
Welded Pipe/TubeASME SB619 ASME SB626φ40~630*2~16*13000 Max
BarASME SB574φ3.5~200*100~6000
WireASME SB574φ1~3*C
Pipe FittingsASME SB366Custom
ForgingsASME SB564Custom

Chemical composition %:


NiCrFeMoWCo
MIN.Bal.14.54.015.03.0
MAX.Bal.16.57.017.04.52.5

MnSSiCVP
MAX.1.00.030.080.010.350.04

Physical Constants :

Density0.321 lb/in3,8.89g/cm3
Melting Point (Approx.)1325°C
Electrical Resistivity130 Microhm·cm
Thermal Expansion Coefficient (25° to 100°C)11.2 x 10-6/ °C
Thermal Conductivity10.2 W/m·K
Magnetic AttractionNone

Corrosion Resistance Performance:

Test Environment (Boiling)Corrosion Rate (mpy)
45% Formic Acid2.33
10% Oxalic Acid11.28
20% Phosphoric Acid0.32
10% Sulfuric Acid15.45
20% Acetic Acid0.57
10% Hydrogen bromide0.75
50% Sodium Hydroxide1.03

Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application.

Mechanical Properties (RT)：

Yield Strength 0.2% OffsetTensile StrengthElongation In 2inchesHardness
KSIMPaKSIMPa%HRB
5235611579261100 Max

Applications

  • Pressure Vessels
  • Reactors
  • Scrubbers
  • Mixers and Agitators
  • Evaporators
  • Heat Exchangers
  • Pumps and Valves
  • Dampers
  • Venturis
  • Solvent Recovery Plants

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