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Hastelloy c276

Hastelloy c276

Hastelloy c276

Hastelloy c276, Hastelloy c276 Suppliers

Gulf Oil & Gas International with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents make the nickel steel alloy especially resistant to pitting and crevice corrosion in reducing environments while chromium conveys resistance to oxidizing media. The low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. This nickel alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process application in an as welded condition.

Although there are several variations of the Hastelloy nickel alloy, Hastelloy C-276 is by far the most widely used.

Alloy C-276 is widely used in the most severe environments such as chemical processing, pollution control, pulp and paper production, industrial and municipal waste treatment, and recovery of sour natural gas.

Specifiacations : ASME-SFA-5.14 ERNiCrMo-4

Hastelloy c276 available forms:

  • Bar
  • Sheet
  • Plate
  • Pipe & Tube (welded and seamless)
  • Pipe Fittings
  • Welding Wire

Corrosion Resistant Hastelloy C276 :

Considered one of the most versatile corrosion resistant alloys available, Hastelloy C-276 exhibits excellent resistance in a wide variety of chemical process environments including those with ferric and cupric chlorides, hot contaminated organic and inorganic media, chlorine, formic and acetic acids, acetic anhydride, seawater, brine and hypochlorite and chlorine dioxide solutions. In addition, alloy C-276 resists formation of grain boundary precipitates in the weld heat affected zone making it useful for most chemical processes in the as-welded condition. This alloy has excellent resistance to pitting and stress corrosion cracking.

Chemical Composition :

Ni Mo Cr Fe W Co Mn C
Remainder 15.0-17.0 14.5-16.5 4.0-7.0 3.0-4.5 2.5 max 1.0 max .01 max
V P S Si
.35 max .04 max .03 max .08 max

Applications of Hastelloy c276

  • Pollution control stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings
  • Flue gas desulfurization systems
  • Chemical processing components like heat exchangers, reaction vessels, evaporators, and transfer piping
  • Sour gas wells
  • Pulp and paper production
  • Waste treatment
  • Pharmaceutical and food processing equipment

Fabrication with Hastelloy c276

Hastelloy C-276 alloy can be forged, hot-upset and impact extruded. Although the alloy tends to work-harden, you can have it successfully spun, deep-drawn, press formed or punched. All of the common methods of welding can be used, although the oxyacetylene and submerged arc processes are not recommended when the fabricated item is for use in corrosion service.

Hastelloy C-276 Welding Material :

Alloy C276 welding products are used as matching composition filler material for welding C276 alloy wrought and cast products, for dissimilar welding applications including other nickel-chromium-molybdenum alloys and stainless steels, and for weld overlay or cladding of steels.

ASTM Specifications :

Pipe Smls Pipe Welded Tube Smls Tube Welded Sheet/Plate Bar Forging Fitting Wire
B622 B619 B622 B626 B575 B574 B564 B366

Mechanical Properties Hastelloy c276

Typical Room Temperature Tensile Properties of Annealed Material

Product Form Tensile (ksi) .2% Yield (ksi) Elongation %
Bar 110.0 52.6 62
Plate 107.4 50.3 67
Sheet 115.5 54.6 60
Tube & Pipe 105.4 45.4 70

Disclaimer Trademarks:

All trademarks used in these documents are the trademarks or service marks of their respective owners. Names are listed solely for reference to help identify products consistent with listed specifications Specifically. Nickel 200/201, Monel, Inconel and Incoloy are registered trademarks of Inco Alloys/Special Metals. Hastelloy is a registered trademark of Haynes International. Gulf Oil & Gas International FZE is not affiliated with any manufacturers. The data herein is for information only. It is not intended for design or engineering purposes. All information is deemed to be correct, and any error or omission is regretted.

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