HASTELLOY® C2762.4819 – UNS N10276 – NiMo16Cr15W

Hastelloy C-276® alloy is a nickel-molybdenum-chromium wrought alloy that is generally considered a versatile corrosion-resistant alloy. This alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. C-276 alloy has excellent resistance to localized corrosion and to both oxidizing and reducing media. Because of its versatility, C-276 alloy can be used where upset conditions are likely to occur or in multipurpose plants.



seamless-pipe Seamless Tubes

welded-pipe Welded Tubes  stock
plate Plates  stock
bar Bars  stock
flanges Flanges  stock
accessories Fittings  stock


  • Fuel & Gas desulphurisation systems
  • Organic syntheses involving acid chloride catalysts
  • Sulphuric acid coolers
  • Vinyl chloride monomer production

General characteristics

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 fuel gas desulfurization systems because of its excellent resistance to sulfur compounds and chloride ions encountered in
most scrubbers. C-276 alloy has excellent resistance to pitting and to stress-corrosion cracking.

Technical information



C276 – UNS N10276
Product Norm ASTM
Seamless Tubes B-622
Welded Tubes B-619 B-626
Plates B-575
Bars B-574
Flanges B-564
Fittings B-366

Chemical specifications %


C276 – UNS N10276
Element Simbol Maximum
Carbon C 0,01
Manganese Mn 1,00
Phosphorus P 0,04
Sulfur S 0,03
Silicon Si 0,08
Nickel Ni 57,0
Chrome Cr 14,5-16,5
Molybdenum Mo 15,0-17,0
Cobalt Co 2,50
Tungsten W 3,0-4,5
Iron Fe 4,0-7,0
Vanadium V 0,35

Mechanical Properties

C276 – UNS N10276
Norm Rm min. Rp 0,2% min. E4d min.% Z min.% T.I.(J) HR B HB
B-564 100 (690) 41 (283) 40
B-574 100 (690) 41 (283) 40
B-575 100 (690) 41 (283) 40 100
B-619 100 (690) 41 (283) 40
B-622 100 (690) 41 (283) 40
B-626 100 (690) 41 (283) 40