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HASTELLOY C276

Hastelloy C276®, Nickelvac® HC-276, Inconel® C276, Nicrofer® 5716

Excellent corrosion-resistant to both oxidizing and reducing media and excellent resistance to localized corrosion attack.

HASTELLOY® C-276 alloy is a nickel-molybdenum-chromium wrought alloy that is generally considered a versatile corrosion-resistance alloy. C-276 alloy is an improved wrought version of alloy C in that it usually doesn’t need to be solution heat-treated after welding and has vastly improved fabricability. This alloy resists the formation of grain-boundary precipitaties in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. However, in environments where attack of the C-276 alloy weld joint is experienced, C-22® weld filler materials should be considered.

HASTELLOY C-276 alloy has excellent resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions. It is used in flue gas desulfurization systems because of its excellent resistance to sulfur compounds and chloride ions encounted in most scrubbers. C-276 alloy has excellent resistance to pitting and to stress-corrosion cracking. It is also one of the few materials that withstands the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.

Dinkar Alloys supplies Hastelloy C22 in the form of Hastelloy plate, Hastelloy sheet, Hastelloy strip, Hastelloy bar, Hastelloy wire, Hastelloy pipe, Hastelloy tubing, Hastelloy pipe fittings and Hastelloy flanges.

Inconel C-276® is a nickel-molybdenum-chromium alloy with excellent corrosion resistance in severe environments. Inconel C-276® is used in pollution control, chemical processing, pulp and paper production, and waste treatment.

Available forms are Hastelloy C276 Seamless Pipe,Hastelloy C276 Welded Pipe,Hastelloy C276 Seamless Tube,Hastelloy C276 Welded Tube,Hastelloy C276 Round Bars,Hastelloy C276 Wire,Hastelloy C276 Sheet,Hastelloy C276 Plate,Hastelloy C276 Forgings,Hastelloy C276 Pipe Fittings, Hastelloy C276 Flanges, Hastelloy C276 elbow, Hastelloy C276 tee, Hastelloy C276 ring, Hastelloy C276 perforated sheet, Hastelloy C276 cladding, Hastelloy C276 spool, Hastelloy C276 tubes, Hastelloy C276 fasteners, Hastelloy C276 mesh, Hastelloy C276 electrodes, Hastelloy C276 welding consumables, Hastelloy C276 efw pipe and Hastelloy C276 fabricated pipe.

Chemical Analysis of Alloy C276 (UNS N10276)


C MN P S Si Cr Ni Mo Co Fe W V
0.01 max 1.00 max 0.04
max
0.03 max 0.08 max 14.5 – 16.5 rem 15.0 -17.0 2.5 max 4.0 – 7.0 3.0 – 4.5 0.35 max

 

Specification


 Sheet / Plate  ASME SB-575
 Round Bar  ASME SB-574
 Pipe  ASME SB-622 / ASME SB-619 / ASME SB-775
 Tube  ASME SB-622 / ASME SB-516 / ASME SB-626
 Fittings  ASME SB-366
 Forgings  ASME SB-564

Mechanical Properties


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