由良産商株式会社　特販部　特販課 List of Products and Services

We provide heat-resistant and corrosion-resistant bolts and nuts, as well as screws made from special materials through forging. As a technical trading company, we will propose solutions to all issues related to fastening, including high strength, heat resistance, corrosion resistance, and loosening.

Alloy 600 is a material that can be used in various severe corrosion environments at high temperatures. □■ Heat Resistance ■□ - Exhibits high strength, high oxidation resistance, and creep resistance at high temperatures, maintaining high strength even around 600°C! - Excellent resistance to sulfidation, high-temperature oxidation, and corrosion environments due to chromium content. □■ Corrosion Resistance and Chemical Resistance ■□ - High nickel content provides excellent corrosion resistance against many organic and inorganic compounds. - Excellent resistance to stress corrosion cracking in the presence of chloride ions. - High corrosion resistance against corrosion caused by high-purity water. - Nearly complete corrosion resistance to ammonia. ------------------------------------------------------------ For detailed information such as handling sizes, click the 【Download】 button!! ------------------------------------------------------------ 　　　↓　　↓　　↓

Hastelloy B-2 is an improved alloy of Hastelloy B, with corrosion resistance comparable to B, but with enhanced corrosion resistance at welded joints, allowing it to be used in most chemical equipment in its welded state. Examples of applications include towers, tanks, and heat exchangers in petrochemical industries (such as PVC, polyethylene, polystyrene, benzene, etc.), as well as sulfuric acid production facilities. Yura Sansho Co., Ltd., a supplier of industrial fasteners, proposes solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short delivery times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

Hastelloy B is an alloy developed for resistance to hydrochloric acid, capable of withstanding hydrochloric acid across all concentrations and temperature ranges up to its boiling point. It is also suitable as a corrosion-resistant material for sulfuric acid, phosphoric acid, hydrofluoric acid, and acetic acid. However, the presence of oxidizing factors such as iron ions and copper ions can accelerate corrosion. Examples of applications include towers, tanks, and heat exchangers in the petrochemical industry (such as PVC, polyethylene, polystyrene, benzene, and others), as well as sulfuric acid production equipment. Yura Sansho Co., Ltd., a supplier of industrial fasteners, proposes solutions as a technical trading company for all issues related to fastening, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short lead times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

Hastelloy C-276 has excellent corrosion resistance in a wide range of severe corrosive environments. It has good weldability and does not require post-weld heat treatment, ensuring good corrosion resistance in the welded areas. Examples of applications include pollution prevention and flue gas desulfurization (FGD) systems, chemical industry equipment, pulp and paper industry equipment, and waste treatment facilities. Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short delivery times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

422 Cress is a material known as SUH 616, used as a bolt material for medium to high temperatures. Examples of applications include high-temperature structural components, steam turbine blades, discs, rotor shafts, and bolts. Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short lead times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

17-4PH is a material known as SUS 630, which is widely used as a high-strength bolt material due to its ability to achieve precipitation hardening. Examples of applications include shafts, turbine components, and steel belts. Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short delivery times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

Naimonic 80A is a precipitation-hardened Ni-Cr alloy that exhibits excellent corrosion and oxidation resistance as well as creep rupture strength at temperatures up to 815°C. Examples of applications include exhaust valves for land and marine internal combustion engines, gas turbine components (blades, rings, disks), and more. Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short lead times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

A-286 is austenitic precipitation-hardening steel widely used for its high strength and heat resistance, particularly aimed at high-quality products for aircraft. Examples of applications include various parts for aircraft engines and industrial turbines (blades, shafts, afterburners, spoolings, and especially heat-resistant fasteners). Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to customer needs, from short delivery times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

Inconel 718 has excellent machinability and becomes highly reliable for use as bolts when forged and subjected to aging heat treatment. Examples of applications include gas turbine components, rocket engine parts, aircraft components, reactor parts, pressure vessels, heat-resistant springs, fasteners, and various other applications that involve high temperatures. Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions to all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening, as a technical trading company. We supply optimal products tailored to customer needs, from short lead times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

Yura Sangyo Co., Ltd., a supplier of industrial fasteners, will propose solutions as a technical trading company for all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening. We supply optimal products tailored to our customers' needs, from short delivery times and small lots to long-term and large-scale demands. We also accept inquiries regarding various standards such as JIS, ISO, SAE, ASTM, and ANSI. For more details, please contact us or refer to our catalog.

"Do you have any concerns or troubles with screws?" Strength, corrosion resistance, heat resistance, loosening, delivery time... In this document, we have gathered proposals and case studies for solutions based on the voices of our customers' concerns. There are many problems that can be solved with the right product selection. ◆Examples of Concerns◆ - High-strength bolts that are outside standard specifications are difficult to procure. - I want bolts that won't seize without using plating or coating. - It's a corrosive environment, but I can't compromise on strength. - The bolt broke. It cracked. - The screw is seizing up. It's burning. - Even though I tightened it with the correct torque, it still loosened. Please leave it to the experts!

Do you have any concerns regarding screws like these? 1. High-performance bolts are difficult to procure. Our company offers a diverse stock of high-performance bolts for sale. 2. I want bolts that are resistant to heat and rust. We also handle bolts with excellent heat and corrosion resistance. We can also solve the following issues! ● I can't reduce strength in a corrosive environment. ● I want to prevent seizing without using lubricants. ● The bolt broke. It cracked. etc.... In this document, we have gathered voices of concerns from our customers along with proposals for solutions, case studies, and various screws. Please leave your diverse problems to "Screw Concierge - Yura San Sho." ■ We will propose screws that fit your needs. ------------------------------------------------------------ If you are interested, please click the [Download] button! *This is an IPROS exclusive distribution! ------------------------------------------------------------ ↓ ↓ ↓

◎ 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.

Do you have any concerns regarding screws? 1. High-performance bolts are difficult to procure. Our company offers a diverse stock of high-performance bolts for sale. 2. I want bolts that are resistant to heat and rust. We also handle bolts and coatings that excel in heat and corrosion resistance. Other issues include… ■ A corrosive environment but cannot compromise on strength. ■ I want to prevent seizing without using lubricants, etc. This document introduces the voices of concerns raised by our customers along with proposals for solutions, case studies, and various screw products. Please leave your diverse problems to the screw concierge, Yura Sansho. ★ We will propose screws that suit your needs. If you would like the document, please click the [Download] button! *This is a distribution exclusive to IPROS!

Yura Sangyo Co., Ltd. is a comprehensive wholesale distributor of screws and fastening components, headquartered in Tachiuri-bori, Nishi Ward, Osaka City, which has long been known as a town of steel product wholesalers. In response to the increasing sophistication of demands, we aim to contribute further to our customers by not only functioning as a "wholesaler" that supplies products just-in-time, stored like a dam, but also by developing and selling high-strength and high-function fasteners as a "technical trading company" that solves the problems faced by our customers. Additionally, in our Aerospace Division, we have successfully entered the aircraft industry. Our company views the commonplace item "screw" as a "critical safety component" that requires high quality assurance and low environmental impact, and we promise to contribute to our customers and society through high-quality screw products. 【Business Activities】 ■ Comprehensive wholesale sales of fastening components such as bolts and nuts *For more details, please refer to the PDF materials or feel free to contact us.

Do you have any concerns regarding screws? 1. High-performance bolts are difficult to procure. Our company offers a diverse stock of high-performance bolts for sale. 2. I want bolts that are resistant to heat and rust. We also handle bolts and coatings that excel in heat and corrosion resistance. Other concerns include… ■ A corrosive environment but cannot compromise on strength. ■ Want to prevent seizing without using lubricants, etc. This document introduces the voices of concerns raised by our customers along with proposals for solutions, case studies, and various screw products. Leave your diverse problems to the screw concierge, Yura Sansho. ★ We will propose screws that suit your needs. If you would like the document, please click the [Download] button! *This is a limited distribution by IPROS!