Hastelloy C276

  • Home
  • /
  • Hastelloy C276

Hastelloy C276

Hastelloy C276 is a nickel-molybdenum-chromium superalloy 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. hastelloyc276

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.

In what form is Nickel 200/201 Available at Micrometals

  • Sheet
  • Plate
  • Bar
  • Wire
  • Pipe & Tube (welded & seamless)
  • Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)

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

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

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