Nehrđajući čelik 316L - Otporan na koroziju

Teške primjene zavarivanja

In general, stainless steel is susceptible to intergranular corrosion due to the precipitation of chromium carbides between the grains during welding. It can also occur when carbon diffuses into the body of stainless steel from oil, plastic tape, and other organic substances under heat. The process is known as carburization. However, due to low carbon content, 316L thrives under such environments by offering excellent resistance to intergranular corrosion. Therefore, fabricators choose 316L over 316 in heavy gauge (>6mm) zavarene komponente.

 

Evo sažete tablice usporedbe nehrđajućeg čelika 316L s drugim uobičajenim vrstama nehrđajućeg čelika:

Vrsta nehrđajućeg čelika	Otpornost na koroziju	Vlačna čvrstoća	Glavne kemijske komponente	Tipični trošak	Tipične primjene
316L	Vrlo visoko	visoko	16-18% Cr, 10-14% Ni, 2-3% Mo,<0.03% C	Umjereno	Medicinski uređaji, morski okoliši, kemijska obrada
304	visoko	Umjereno	18-20% Cr, 8-12% Ni,<0.08% C	Donji	Kuhinjska oprema, arhitektonska lamperija
410	Umjereno	visoko	11,5-13,5% Cr,<0.15% C	Donji	Pribor za jelo, lopatice parne i plinske turbine
321	visoko	visoko	17-19% Cr, 9-12% Ni, 5x%C Ti	viši	Zrakoplovne komponente, ispušni sustavi