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Hexagonal bolt×由良産商株式会社　特販部　特販課 - List of Manufacturers, Suppliers, Companies and Products

Hexagonal bolt Product List

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High corrosion-resistant duplex stainless steel "SUS329J4L" hex bolt

High corrosion-resistant duplex stainless steel "SUS329J4L" hex bolt

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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  • fastener

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Aluminized α treatment suitable for preventing galling and seizure of hex bolts and nuts.

Aluminized α treatment suitable for preventing galling and seizure of hex bolts and nuts.

It is highly resistant to corrosion, seawater, and heat, and does not suffer from corrosion degradation or deformation even at high temperatures!

◎ What is Aluminaize α treatment… It is a processing method that involves performing low-temperature thermal diffusion treatment on the aluminum layer on the surface to allow mutual diffusion of the aluminum layer, forming an alloy layer (Fe-Al intermetallic compound). ◎ Why does it not seize… When the surface of the screw or the mating material reaches high temperatures, oxidation occurs and scales of over 6μ are generated. When removing the bolt, the generated scale accumulates (sticks) in the clearance between the female and male threads, causing seizing or galling. The scale from the Aluminaize α treatment is a maximum of 2μ, and when removing the bolt, it rolls within the clearance between the female and male threads, acting as a lubricant to prevent seizing and galling. ◎ Materials suitable for Aluminaize α treatment Iron, cast iron, steel, alloy steel, SUS materials, heat-resistant steel, titanium, Inconel, Hastelloy, etc. *For details, please contact us or download the PDF.

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