2205(S31803)

Applications：

Features:

1﹑Material Summary and Applications

2205 belong to the low carbon duplex stainless steel. Excellent resistance to pitting and crevice corrosion.  Even after welding or high temperature heating, it can remain a certain number of austenite in the organization. It is difficult to form a single phase ferrite.

Widely used in marine engineering, water treatment, mechanical instruments, chemicals transport equipment, shipping heat exchanger equipment, fitting and piping, methanol synthesis reactor, amine acrylic mould, polypropylene glycol cooling coil, oil tank heating coil and so on.

4﹑Corrosion Resistance

00Cr22Ni5Mo3N duplex steel resistance to pitting corrosion in chlorine environment is better than 18-5Mo duplex  and 316L. 

00Cr22Ni5Mo3N duplex steel has better crevice corrosion resistance than 00Cr18Ni5Mo3Si2 duplex steel and similar to austenitic stainless steel 316L

. 00Cr22Ni5Mo3N steel contains nitrogen. After heating to high temperatures, it remains a large amount of the austenite phase.

When welding high temperature heat affected zone cooling, the ferrite will transform to austenite phase quickly.  This two phase structure reduces the intergtanular  corrosion of steel.

In most media, the anti-uniform corrosion performance of stainless steel is better than 304L steel and 316L steel. The combination of mechanical

properties and corrosion resistance make the steel high strength.

5、Available Size Range for seamless pipes and tubes

OD 6 ～ 219mm 

WT 1.0～12.7 mm