Duplex Stainless Steel S32760 hex bolt partial half thread DIN931
Astm A479 Super Duplex Steel UNS S32760 Hex Bolts have a high PREN value, the rate of pitting is lower, despite the use of these fasteners in highly corrosive environments such as oil wells and pipelines transporting soured oils, sulfide ores processing, kraft paper production plants, methionine and lysine factories, as well as the photographic industry.
The high chromium and molybdenum content present in Super Duplex S32760 Fasteners Grade makes them extremely resistant to uniform corrosion by organic acids such as formic acid and acetic acid. Super Duplex grade UNS S32760 fg also offers excellent resistance to inorganic acids, especially in those environments which contain chloride ions.