<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.*

• others

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.

• others

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.

• others

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.

• others

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.

• others

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.

• others

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.

• others

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.

• others

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.

• others

[To the owners of parking lots and parking lot construction companies] "I am worried about the possibility of colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, those particularly facing sidewalks or roadways are expected to pose risks of dangerous incidents such as pedestrian collisions and vehicle-to-vehicle accidents. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures at various sites and alerts the surrounding area with LED lights and buzzers. The system consists of a simple configuration of "Sensor" + "Controller" + "Switching Power Supply (24V)" + "LED Rotating Light." *When using the exit warning system, we kindly ask that you arrange for the switching power supply (24V), LED rotating light, control panel, circuit breaker, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. [Contents Included] ○ Exit Warning System Configuration ○ Comparison Table of Exit Warning Sensors ○ Four Modes ○ Wide Range of Applications ○ Customer Feedback ○ Appearance Diagram / Specifications ◎ For more details, please contact us or download the catalog.

Hotron, which manufactures and sells sensors, provides bed exit sensors for hospitals, nursing, and care facilities. Hotron offers easy-to-understand video guidance on how to use bed exit sensors wirelessly and how to set up device connections! ▼ Video Manual (YouTube) https://www.youtube.com/playlist?list=PLNVA4mTrZDqtJa6MfFRZQxwtfCSnAfxVy 【Bed Exit Sensors】 ○ Non-contact infrared sensor, simply place it - Pole-kun HB-H1 ○ Mat sensor, foldable thin mat - Mat-kun HB-UST ○ Body movement call - Ugo-kun HB-TV3 ○ Body movement call for wheelchairs - Ayumi-chan HB-WTV3 【Options】 ○ Nurse call linked wireless set - Wireless set (transmitter/receiver) HB-RS/HB-RJ ◎ For more information about the products, please contact us or download the catalog.

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer acquisition primarily in the BtoB (business-to-business) sector. On February 10, 2026 (Tuesday), they published a page titled "What is the true nature of 'nice people who are exhausting to interact with'? 'Covert Aggression.'" 'Covert Aggression' refers to behaviors that harm others while pretending to be a 'good person,' as well as aggressive tendencies and personality traits that attempt to manipulate others subtly. The page explains relevant cases, characteristics, causes for falling into this behavior, and ways to cope with it. (Page Overview: Excerpts) ■ What is 'Covert Aggression'? ■ Cases that fall under 'Covert Aggression' ■ Characteristics of 'Covert Aggression' ■ Why do people fall into 'Covert Aggression'? ■ Coping strategies for 'Covert Aggression' (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/covert-aggression-2026-02/

We will be exhibiting at WIND EXPO, the Wind Power Generation Exhibition. We will address the challenges faced by our customers through wind condition observation using floating LiDAR in offshore wind power generation, sea state monitoring with moored buoys, and topographic and geological surveys using multi-beam acoustic depth sounding devices, as well as related marine and sea condition investigations. At our booth, we plan to introduce our products and services, display posters, and distribute brochures. We invite everyone to come and visit us.

Announcement of the seminar on "How to Use the Management System Aipia for the Construction Industry." *You can participate from your office or home as long as you have an internet connection. Seminar Overview: In the construction industry, it is necessary to simultaneously handle many tasks such as estimating, cost calculation, cost management, and schedule management. Managing these with Excel or paper is cumbersome and poses challenges for information sharing and error prevention. This seminar will explain how to utilize the management system Aipia for the construction industry to centrally manage tasks such as estimating, cost calculation, cost management, and scheduling. We will clearly introduce points to enhance operational efficiency and information collaboration, incorporating actual system operations. Seminar Content: What is the management system "Aipia" for the construction industry? Key points for streamlining estimating and cost calculation tasks Visualizing the site through cost management and scheduling What business improvements can be achieved with Aipia implementation? Frequently asked questions and points to consider during implementation Let's try using the system!