Hastelloy C276

Hastelloy C276 - A Superalloy


Hastelloy C276 is a nickel-molybdenum-chromium superalloy supplemented with tungsten, produced to have top-notch corrosion resistance in a vast range of critical environments. With high nickel and molybdenum contents, it makes nickel steel alloy resistant to crevice corrosion and pitting in reducing environments, while chromium channels resistance to oxidizing media. Hestelloy C276 suppliers and Hestelloy C276 manufacturers like Supreme Engineering Limited are at the forefront of the industry.


The low carbon content reduces carbide precipitation during welding to preserve corrosion resistance in as-welded structures. This is a nickel alloy that is resistant to the formation of grain boundary precipitates in the weld heat-affected area, making it a fitting alloy for chemical process application in an as-welded state. There are different variations of Hastelloy nickel alloy, but C276 is the most consumed.


Features of Hastelloy C276:

  • Low carbon content that minimizes grain-boundary carbide precipitation.
  • Good corrosion resistance in reducing environments.
  • Capable of withstanding corrosive effects of wet chlorine gas.
  • High nickel and molybdenum content

Specifications:

The various forms of Hastelloy C276 are covered by the following standards:


  • ASTM B574
  • 2.4819 and AMS 5750.

NICKEL-BASED SUPERALLOYS - ALLOY C-276

Applicable Standards ASTM B574, Din 17752
Carbon % 0.01 Max
Silicon % 0.08 Max
Manganese % 1.00 Max
Sulphur % 0.030 Max
Chromium % 14.5 - 16.5
Molybdenum % 15.0 - 17.0
Copper % -
Nickel % 55
Tungsten % 3.0-4.5
Hardness (BHN) 252 BHN
Density 8.89
U.T.S.(N/MM2) 758 Mpa
Yeild Strength(Mpa) 363 Mpa
Elongation 62%
Reduction Area  
Impact (Room Temperature)  
Impact (0◦ C)  
Impact (- __◦ C)  

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