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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Automobiles, electricity, petrochemical plants, fuel cells, steel, oil storage facilities, etc... *For details, please download and view the catalog.*
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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.