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Manufacture Hastelloy C276 Nickel Alloy Sheet for Heat Exchanger
1 . Descriptions:
Hastelloy C276 UNS N10276 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. 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.
2 . Chemical Composition:
Grade | % | C | S | Mn | P | S | Ni | Cr | Mo | Fe | Co | W | V |
Hastelloy C276 | Min | 14.5 | 15.0 | 4.0 | 3.0 | ||||||||
Max | 0.01 | 0.08 | 1.0 | 0.04 | 0.03 | Margin | 16.5 | 17.0 | 7.0 | 2.5 | 4.5 | 0.35 |
3 . Nominal Mechanical Properties
Density g/cm3 | Melting Range °C | Tensile Strength | Yield Strength | Elongation |
Rm N/mm2 | RP 0.2N/mm2 | A5% | ||
8.89 | 1325-1370 | >741Mpa | >347Mpa | 67 |
4 . Applications:
The key factors influencing corrosion resistance of this material are the control of impurity S,P, gas
content O,N and key elements C,Si, etc.It depends on the control of production process, such as the
choice of heating temperature and heat preservation time of forging, such as the guarantee of forging
ratio, such as the guarantee of solid solution treatment, etc.
6 . Available Product Forms:
Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire