Achieving corrosion resistance and high strength in chloride environments! Available in stock from M8 to M16. Ideal for areas where stress corrosion cracking is a concern.
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ■ 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! *Please download the materials for more details.
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┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ■ Stress Corrosion Cracking Resistance ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ◆ Austenitic stainless steels such as SUS304 and 316L exhibit superior performance compared to carbon steel in general atmospheric environments; however, in environments where chloride ions (Cl-) are concentrated due to repeated wet and dry conditions 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 used in seawater and freshwater environments, centrifuges, and sluice gates, among others. ◆ 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.
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Applications/Examples of results
Desalination plant equipment, offshore wind power generation, sluices, petrochemical plant equipment and piping, centrifuges, valves and pumps, airport (coastal offshore) installation equipment, revised installation equipment, parts for seawater equipment, parts for ship outfitting, exterior walls of coastal buildings, beautification parts for marine leisure and sports, offshore drilling platforms, tanks and pools, heat exchangers, flue gas desulfurization equipment, various pollution prevention equipment, oil well pipes, textiles and pulp, geothermal power generation, food manufacturing equipment, medical devices, pharmaceutical manufacturing equipment, etc.
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Company information
Yura Sangyo's Special Sales Department aims to contribute to the screw demand industry by ensuring that we can deliver "better screws" at "more reasonable prices" and "just in time" through our wholesale operations of screws and related products. We strive to excel in various business activities. 1. Abundant inventory: Over 50,000 items and more than 10,000 tons of stock. 2. Wide range of suppliers: Partnering with 250 domestic and international suppliers, including SPS Unbrako, which specializes in the aerospace sector. 3. Robust immediate delivery system: Quickly responding to customer needs from small lots. 4. Reliable quality control: Conducting thorough inspections and traceability from product arrival to delivery in a separate department from the wholesale division, while also handling engineering fasteners (bolts and nuts) based on customer advice and needs. The product lineup and business details are as follows. We primarily focus on made-to-order production and also handle some brand products from the wholesale division.