Inconel 690

Description:

The Inconel 690 nickel alloy has outstanding resistance to many corrosive aqueous media and high temperature environments. High chromium content gives alloy 690 superior corrosion resistance to oxidizing acids (nitric acid in particular) and salts and to sulfidation at high temperatures. The high chromium alloy also has excellent resistance to intergranular corrosion and intergranular stress corrosion cracking.

Excellent inoxidability in the high temperature.

Good resistance to carbonizing.

Good inoxidabilitiy in sulfur atmosphere

Good mechanical property in both room temperature and high temperature.

Good resistance to stress corrosion cracking, 690 have high creep rupture strength since it limits the carbon content and grain size, so recommend to use for above 500℃ environment.

In addition to corrosion resistance, it features high strength and perfect fabrication properties. Such properties make this high performance nickel alloy suitable for heat transfer pipes of vapor generator in pressurized water reactor nuclear power plant.

The tray,basket and tool clamp in the heat treatment factory.

Steel shares at annealing and radiation control, high-speed gas burners, Industrial furnace silk screen.

Separate tank of ammonia reforming and catalytic support grid of nitric acid producing.

Exhaust system parts

Solid waste incinerator’s combustion chamber

Channel support and soot dealing parts.

Specifications of Inconel 690 Nickel Alloy

Chemical Compositions

Mechanical Properties (Minimum value at 20℃)

Product Forms and Standards