<Free Gift> Why Doesn't It Rust?! Understanding the Types and Characteristics of 'Basic Knowledge of Stainless Steel'

This document explains why stainless steel does not rust and why it can rust. It is a technical document that outlines the types and characteristics of stainless steel.

Stainless steel is a highly corrosion-resistant alloy made by adding elements such as chromium and nickel to a base of iron to enhance its corrosion resistance. Due to its properties such as corrosion resistance, heat resistance, workability, and ease of maintenance, it is widely used in everyday items as well as large structures, with various applications ranging from household goods and transportation equipment to nuclear power and space development. Different types of stainless steel have been developed and manufactured to suit these applications. This document provides a clear explanation of the types and characteristics of stainless steel, the reasons for its rust resistance, and the conditions under which it rusts, offering fundamental knowledge about stainless steel. *For more details, please download the document or contact us directly.*

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Non-magnetic, high-strength, and highly corrosion-resistant austenitic stainless steel bolts. They are environmentally friendly products that do not require heat treatment.

The "high-strength, high-corrosion-resistant stainless steel bolt" is made from austenitic stainless steel based on SUS304 and exceeds the strength classification A2 standard values of JIS B 1054. Through a proprietary molding process (patent obtained), it has achieved strength without the need for heat treatment. 【Features】 - Uses high-corrosion-resistant austenitic stainless steels SUS304 and SUS316 - Achieves high strength by utilizing material strength and work hardening through forging - The proprietary Bausinger effect suppression processing method eliminates the need for strengthening heat treatment, reducing environmental impact - Maintains high corrosion resistance and shortens lead time due to the absence of heat treatment processes - The screw head shape adopts a hexalobular design that offers high torque transmission - Balances corrosion resistance and strength, with a proven track record for use in automotive components (Note) The Bausinger effect refers to the phenomenon where, after applying plastic deformation in one direction, applying a load in the opposite direction results in plastic deformation occurring at a lower stress than when a load is applied again in the same direction. If you are interested in fastening with stainless steel components, please feel free to contact us.

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We provide various technical information, including test results and material properties, about "high-strength, high-corrosion-resistant stainless steel bolts" that excel in strength and corrosion resistance.

The "high-strength, high-corrosion-resistant stainless steel bolt" is made from austenitic stainless steel materials SUS304 and SUS316, which excel in corrosion resistance. By utilizing forging processes to enhance material strength and work hardening, it surpasses the JISB1054 A2 standard values. 【Verification Experiment】 Stainless Steel Bolt Tensile Test (Size: M8 P1.25) ○ Tensile Strength: 1018.3 MPa ○ 0.2% Yield Strength: 854.6 MPa By introducing our self-developed Bauschinger effect suppression processing method into the manufacturing process, we have made it possible to secure strength without heat treatment. ○ It allows for strong processing without enhanced heat treatment, reducing environmental impact. ○ By eliminating the heat treatment process, lead time can be shortened. (※) The Bauschinger effect refers to the phenomenon where, after applying plastic deformation in one direction, applying a load in the opposite direction results in plastic deformation occurring at a lower stress than when a load is applied again in the same direction. This stainless steel bolt achieves both corrosion resistance and strength while also contributing to cost reduction. Detailed technical information is available in the technical report. Please download it to learn more.

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A high-torque compatible embedded bolt for resin that is strong against rotation and withdrawal, and does not damage the resin. It allows for nut tightening when embedded in resin parts.

The "SSOO Bolt" is a resin embedded bolt (insert bolt) with a special octagonal head shape, offering excellent torque resistance and pull-out strength. An insert bolt is a bolt that is embedded in resin and fastened with a nut. By tightening with a nut, it allows for the fastening of resin parts to each other or resin parts to metal. It minimizes deformation and cam-out of the resin when fastened with high torque, enabling nut tightening at high torque levels. It can also be used for back embedding (thermal press fitting), making it suitable for shapes that cannot be integrally molded. Since the bolt can be used in an upright position within the resin, it improves the assembly of parts. The product design has been completely revamped, and sizes from M4 to M8 are now available. 【Features】 ● Special shape that minimizes cam-out and slip even when tightened with high torque ● Strong against pull-out, preventing deformation of resin parts ● Usable for both insert (simultaneous molding) and outsert (thermal press fitting) ● Mass production possible due to unique manufacturing methods ● Trusted Octa Lobular series *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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I will teach you how to make screws. We will provide free technical materials that cover everything about screw making, including materials, processing methods, inspection, and evaluation tests.

Screws are used in various machines such as transportation equipment and structures, but do you know how screws are made? Even seemingly simple screw components have various characteristics depending on their applications and purposes, including materials, processing methods, and inspection methods. To choose the right screw for a specific use, it is important to understand the characteristics of each manufacturing process, as well as inspection and evaluation tests. The textbook series on screw-related technologies explains the techniques involved in screw manufacturing in an easy-to-understand manner. If you are struggling with screw selection or want to learn about the technologies related to screw manufacturing, please refer to the PDF materials. Feel free to contact us with any inquiries.

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Cost reduction through aluminum separation. Stainless steel for a higher level of strength. High-torque compatible resin bolts that can be embedded for use.

【High-Performance Bolt Feature】High-performance bolts can also be used for cost reduction! Case studies available. ■High-Strength Aluminum Bolts - Lightweight and strong. Contributes to weight reduction and improves fuel efficiency. - Can be used in aluminum products without the need for recycling separation. Reduces recycling costs. - Used in aluminum frames of the same material, achieving labor reduction and realizing cost reduction. ■High-Strength Stainless Steel Bolts - Despite being made of SUS304 material, ensures a higher strength (A2-90) through a special manufacturing process. - Achieved cost reduction by replacing with SUS304CUN material bolts. ■High Torque Compatible Insert Bolts (Outsert Bolts) - Bolts for resin that are embedded in resin parts. With high torque resistance, they do not rotate and protect the resin from damage. - With torque resistance and pull-out strength, it is possible to reduce the number of fasteners. Contributes to weight reduction and cost reduction. - Since back-filling (outsert) is also possible, it enables labor reduction and cost reduction. Detailed materials such as technical documents for each bolt can be viewed from the download section. Please feel free to contact us for case studies on cost reduction.

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Nut. It is mainly used in transportation equipment parts and is also engaged in research and development.

Nuts are one of the essential mechanical components for fastening products and are used in various machinery structures. Our company, as a total fastener manufacturer supporting Japanese industry, produces and sells a wide variety of bolt products, including hex nuts, hex flange nuts, weld nuts, wheel nuts, cap nuts, insert nuts, and outsert nuts. We also have manufacturing and sales bases overseas, including in China and India, to meet our customers' needs. We have developed original products such as the "hard-to-turn" insert nut "SSOI nut" for high torque applications and the "hard-to-turn and hard-to-remove" outsert nut "SSOO nut," which are now in mass production. If you are interested, please feel free to contact us.

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Bolts. They are mainly used in transportation equipment parts and are also engaged in research and development.

Bolts are one of the essential mechanical components for fastening products and are used in various machine structures. Our company, as a total fastener manufacturer supporting Japanese industry, produces and sells a wide variety of bolt products, including high-strength bolts, flange bolts, washer-integrated bolts, welded bolts, riveted bolts, and serration bolts. We also have manufacturing and sales bases overseas, including in China and India, to meet our customers' needs. So far, we have developed and mass-produced stainless bolts made from stainless steel SUS304, achieving high strength and corrosion resistance without heat treatment, as well as aluminum bolts based on aluminum alloy A7050, which achieve high strength through a special strengthening process. If you are interested, please feel free to contact us.

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Through research and development, we are striving to improve the safety, performance, and quality of our screw products!

Mechanical structures such as automobiles, home appliances, and buildings are assembled by joining multiple parts together. Therefore, joining is common across all industries and is the most fundamental technology for maintaining performance and quality. Joining can be broadly classified into welding through the melting and solidification of metals, chemical adhesion, and mechanical fastening through screws. Each of these methods has many advantages and is an important joining technique, but the only method that allows for high strength and the possibility of disassembly and reuse is mechanical fastening with screws, which is also considered to play an important role in today's environmental issues. Screws are a representative mechanical component that was standardized by ISO early on as a key element of globalization and are widely distributed in the market; however, there are significant differences in safety, performance, and quality among manufacturers. Through diligent research activities to meet users' needs for screw fastening, we are committed to improving the safety, performance, and quality of screw products.

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Are you making progress on measures for the "2024 Problem"? The management of drivers' working hours is becoming stricter, and in the logistics field, reducing "waiting time for loading" has become an urgent issue. To address this challenge, our company, Hotron, proposes the "Vehicle Detection Ultrasonic Sensor 'HM-UX2'," which instantly grasps the availability of loading bays. The 'HM-UX2' contributes to the resolution of waiting times by accurately understanding the availability status, reducing unnecessary waiting and queuing, and shortening waiting times, thereby alleviating the burden on drivers! By replacing the "eyes" of your loading bay management with this high-precision sensor, why not start taking measures against the "2024 Problem"? Take a look at the product features: "Can it accurately detect availability?" "Can we really use it in our company?" "I just want to know the cost, even if it's an estimate." If you have any questions or requests, please feel free to consult us first.

We sincerely apologize for the inconvenience, but we will be closed for summer vacation during the following period. Closure period: August 9 (Saturday) to August 17 (Sunday), 2025 Inquiries received during this period will be addressed sequentially starting from August 18 (Monday). We appreciate your understanding and cooperation.

Thank you very much for visiting our booth at the "High-Performance Materials Week [Osaka] 13th High-Performance Plastics Exhibition." Thanks to you, we had many visitors and were able to conclude the event successfully. In addition to the "PPLB-445" displayed on the day, we have a variety of products available. For those who were unable to measure samples at the venue, we offer a trial measurement service. Furthermore, for those who would like to know more about our products and services, we also accept online meetings. We welcome inquiries from those who attended as well as those who could not make it this time due to scheduling conflicts. Please feel free to contact us.

Aioi System is pleased to announce the release of the low-power wireless display "NW2991-JP," which achieves long battery life. This product supports 920MHz band wireless communication and can be operated in conjunction with wired displays. It can be easily integrated into existing systems by simply adding a master unit. With a high-speed response time of under one second and a variety of display functions for text and barcodes, it supports a wide range of applications. ▼ For more details, please see the press release linked below ▼ ■ Main Features - Maintenance-free design with a battery life of one year (low power consumption) - Compatible with mixed operation with wired displays - High-speed response (under one second) and diverse display formats - Stable communication in the 920MHz band ■ You can see the actual product at the exhibition This product will be displayed at the TOPPAN booth during the International Logistics Comprehensive Exhibition 2025, 4th INNOVATION EXPO. We invite you to visit the venue, see the actual product, and experience its performance. Dates: September 10 (Wed) - 12 (Fri), 2025 Venue: Tokyo Big Sight (Halls 4-8) Booth No: 5-907 (TOPPAN booth) Exhibition official website ▶ linked below We sincerely look forward to your visit.

Thank you very much for visiting our booth at the "Monozukuri World (Measurement, Inspection, and Sensor Exhibition) 2025." Thanks to you, we had many visitors, and the event concluded successfully. In addition to the "PPLB-445" showcased on the day, we have a variety of products available. For those who were unable to conduct sample measurements at the venue, we offer a trial measurement service. Furthermore, for those who would like to learn more about our products and services, we also accept online meetings. We welcome inquiries from those who attended, as well as those who were unable to come this time due to scheduling conflicts. Please feel free to reach out to us.