Alloy 28 (UNS N08028)

*Similar Grade

*Product Forms

Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire

*Brief

Alloy 28 is a highly corrosion-resistant austenitic alloy offering resistance to a variety of media. The alloy resists attack in reducing media due to its contents of nickel, copper and molybdenum and is resistant to oxidizing species due to its high lever of chromium. Alloy 28 offers resistance to general, localized and stress-induced corrosion by chlorides and hydrogen sulfides. Thus, it is widely used in all field applications. Tubes are cold worked to high levers of strength for downhole service in deep sour gas wells. With its excellent combination of strength and corrosion resistance, alloy 28 also finds applications in the process industries. It is especially useful for handling phosphoric acid. Due to its resistance to chlorides, alloy 28 tubes may be used in the marine industry for seawater-cooled heat exchangers.

*Chemical Composition,%

*Typical Physical & Mechanical Property(Solution Annealed)

*Specification

*Feature

1. Very high corrosion resistance in strong acids

2. Very good resistance to stress corrosion cracking (SCC) and intergranular corrosion in various environments

3. High resistance to pitting and crevice corrosion

4. Good weldability

*Application

1. Chemical processing

2. Pollution control equipment

3. Oil and gas well piping

4. Nuclear fuel reprocessing

5. Acid production

6. Pickling equipment