SUS329J4L High Corrosion-Resistant Hex Bolt (FA-80)

It has resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking in a chloride environment!!

┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ■ Features of SUS329J4L ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━ "SUS329J4L is..." It is a duplex stainless steel consisting of austenitic and ferritic phases. It has excellent resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking in chloride environments, and also boasts high strength. ◆ High Corrosion Resistance ◆ - 2 times that of SUS304 - 1.5 times that of SUS316L in pitting corrosion resistance index (PRE) ◆ High Strength ◆ - Tensile strength: 800 N/mm² - 0.2% yield strength: 600 N/mm² (minimum value) ◆ Shape and Dimensions ◆ Nominal diameter: M8 to M16, available in stock! *For details, please download the materials and take a look.

basic information

┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ■ Stress Corrosion Cracking Resistance ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ◆ Austenitic stainless steels such as SUS304 and 316L exhibit superior performance compared to carbon steel in general atmospheric conditions; however, in environments where chloride ions (Cl-) are concentrated due to repeated wet and dry cycles from contact with seawater, their durability cannot be considered sufficient. ◆ SUS329J4L, with its ultra-low carbon, high chromium, and high molybdenum composition, excels in localized corrosion resistance (such as pitting, crevice corrosion, and stress corrosion cracking) and acid resistance. It is used in chemical plant piping, seawater equipment components, valves, pumps, centrifuges, and sluice gates in seawater and freshwater environments. ◆ About the material... SUS329J4L is not standardized in JIS G 4308 "Stainless Steel Wire Rod," so it is listed as "S329J4L" on the material inspection certificate (mill sheet) issued by Nippon Steel Stainless Corporation. *For more details, please download and view the materials.