Duplex stainless steel has the advantages of both ferritic stainless steel and austenitic stainless steel: austenitic stainless steel reduces the brittleness, maintains excellent toughness and weldability; ferritic stainless steel improves the yield strength, intergranular corrosion resistance and chloride stress corrosion resistance. Weidouli provides a whole range of high-class, customizable and innovative duplex stainless steel valves.
Name | Castings grades | Forgings grades | Bars grades |
Duplex S31803 | A890 4A/A995 4A/CD3MN | A182 F51 (2205) | A276 S31803 |
Super Duplex S32750 | A890 5A/A995 5A/CE3MN | A182 F53 (2507) | A276 S32750 |
Super Duplex S32760 | A890 6A/A995 6A/CD3MWCuN | A182 F55 | A276 S32760 |