Hastelloy N Pipe

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Hastelloy N pipe

Product Introduction
Hastelloy N alloy is a nickel-based high-temperature alloy material used in molten salt reactors. It has excellent corrosion resistance, resistance to neutron radiation and good high-temperature mechanical properties. However, the reactor outlet temperature reached 750°C, exceeding the allowable temperature of Hastelloy N alloy of 704°C, which means that the alloy cannot operate stably in a 750°C molten salt environment for a long time. Therefore, there is an urgent need to optimize Hastelloy N alloy to meet the requirements of higher temperature molten salt reactors.

Hastelloy N

The chemical composition of Hastelloy N is given in the following table.

Element

Content (%)

Nickel, Ni

71

Molybdenum, Mo

16

Chromium, Cr

7

Iron, Fe

≤ 5

Silicon, Si

≤ 1

Manganese, Mn

≤ 0.80

Tungsten, W

≤ 0.50

Aluminum, Al + Titanium, Ti

≤ 0.50

Copper, Cu

≤ 0.35

Cobalt, Co

≤ 0.20

Carbon, C

≤ 0.080

Application

Used in molten fluoride salt containers and other fields

1 Industrial and aviation turbines.

2 Industrial furnace components, support rollers, grids, ribbons and radiant tubes.

3 Spiral tubes in petrochemical furnaces.

4 Spiral tubes in petrochemical furnaces.

5 High-temperature gas cools nuclear reactors.

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