Hastelloy C4

Standard of execution:

Characteristic as below：
Excellent corrosion resistance in reducing environments
Exceptional resistance to strong solutions of oxidizing salts, such as ferric and cupric chlorides
High nickel and molybdenum contents providing good corrosion resistance in reducing environments
Low carbon content which minimizes grain-boundary carbide precipitation during welding to maintain resistance to corrosion in heat-affected zones of welded joints
Resistance to localized corrosion such as pitting and stress-corrosion cracking
One of few materials to withstand the corrosive effects of wet chlorine gas, hypochlorite and chlorine dioxide

Application field:
Digesters and bleach plants in the paper industry.
Components exposed to sour gas.
Equipment for flue-gas desulfurisation plants.
Evaporators, heat exchangers, filters and mixers used in sulfuric acid environments.
Sulfuric acid reactors.
Organic chloride process equipment.
Equipment for processes utilizing halide or acid catalysts.