321 321H stainless steel pipe APPLICATIONS

1， Aerospace – piston engine manifolds
2， Chemical Processing
3， Expansion Joints
4， Food Processing – equipment and storage
5， Petroleum Refining – polythionic acid service
6， Waste Treatment – thermal oxidizers

CORROSION RESISTANCE of 321 321H stainless steel pipe

1, exhibits good general corrosion resistance that is comparable to 304.
2, developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) .
3, can be used in most diluted organic acids at moderate temperatures .
4, can be used in pure phosphoric acid at lower temperatures.
5, can be used in up to 10% diluted solutions at elevated temperatures.
6, resists polythionic acid stress corrosion cracking in hydrocarbon service.
7, utilized in chloride or fluoride free caustic solutions at moderate temperatures.
8, does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

Product Parameters