不二越　マテリアル事業部 List of Products and Services

Fujikoshi Co., Ltd. develops its material business centered around high-speed steel (HSS), supplying precision processing materials across a wide range of fields, including tools and cutting tools, as well as automotive, electronics, and telecommunications. Additionally, leveraging the seeds of materials and thermotech, the company is engaged in the industrial furnace and coating business. This handbook introduces various topics, including "Classification of High-Speed Steel and Comparison Table of Major Chemical Components and Steel Type Symbols," as well as "Functions of Major Alloy Components" and "Steel Type Characteristics and Applications." It serves as a comprehensive resource for understanding high-speed steel. [Contents (Excerpt)] ■ Classification of High-Speed Steel and Comparison Table of Major Chemical Components and Steel Type Symbols ■ Chemical Components of Major High-Speed Steel Standards (JIS, ASTM, AISI, VDEh, TOCT) ■ Chemical Components of Major NACHI High-Speed Steel Types ■ Functions of Major Alloy Components in High-Speed Steel ■ Heat Treatment of High-Speed Steel, Steel Type Characteristics and Applications *For more details, please refer to the PDF document or feel free to contact us.

• Steel

"Preshape" is a high-quality steel and difficult-to-machine drawn product that engages users in neck processes to achieve productivity improvements and total cost reductions. Cost reductions can be achieved through yield improvements, and we can also meet the demands for pre-hardened materials. [Applications] ■ Drawn flat wire - Blade materials for machine saws - Vanes for vane pumps - Valve seats, etc. ■ Special-shaped drawn flat wire - Linear bearings - Hob plates - Hex tools, etc. *For more details, please refer to the PDF document or feel free to contact us.

• others

The "NPR-FX25" is a screw component made of fluoropolymer that excels in chemical resistance and insulation properties. It maintains its corrosion resistance in fluoropolymer molding environments while exhibiting approximately twice the strength compared to conventional materials, enabling high-pressure filling and accommodating mass production of complex-shaped fluoropolymer components. This document includes graphs explaining mechanical properties and fluoropolymer corrosion resistance, as well as images of usage examples. 【Features】 ■ Chemical resistance ■ Insulation properties ■ Corrosion resistance ■ Capable of high-pressure filling ■ Suitable for mass production *For more details, please refer to the PDF document or feel free to contact us.

• others

The "EZ SERIES" is a wing slicer type robot that employs a unique mechanism in its main body. By enabling vertical movement of the first axis (the entire arm), it achieves a compact arm design. Additionally, the absence of motors in the robot arm section results in a slim and lightweight specification. The smart wiring of the hand, facilitated by a hollow wrist structure, avoids interference with surrounding equipment and contributes to improved reliability. From four types of ceiling-mounted/floor-mounted options with Z-axis strokes of 250/150mm, you can select the appropriate arm to match your equipment. We offer a rich lineup. 【Lineup】 ■ Ceiling-mounted Z-axis 250mm EZ03V4-4525 ■ Ceiling-mounted Z-axis 150mm EZ03V4-4515 ■ Floor-mounted Z-axis 250mm EZD3F4-5525 ■ Floor-mounted Z-axis 150mm EZ03F4-5515 ■ 6-axis specification (EZ02) *For more details, please refer to the PDF document or feel free to contact us.

• Articulated Robot

EXEO-316 is a stainless steel developed as a material for hydrogen stations used to fill hydrogen fuel cell vehicles, featuring resistance to hydrogen embrittlement. EXEO-316 is an alloy developed by leveraging the technology cultivated in special steels (such as high-speed steel and bearing steel) to apply it in the world of stainless steel, starting with the analysis of the required material properties, and integrating alloy design technology, special melting technology, heat treatment, and processing technology. 【Features】 ■ Adjusting component values to suppress hydrogen embrittlement microstructures and implementing microstructure control ■ Controlling inclusions that can trap hydrogen through special melting technology *For more details, please refer to the PDF document or feel free to contact us.

• stainless

Our high-strength, high-corrosion-resistant stainless steel (martensitic type) 'EXEO-CR20' is a new concept stainless steel developed through unique component design and special melting technology, offering a high class of strength and corrosion resistance. It has a hardness of up to 60 HRC and strength exceeding 2 GPa, achieving superior corrosion resistance compared to SUS420J2. Additionally, it has wear resistance equivalent to SUS440C and excellent fatigue strength, making it useful for improving the lifespan of components used in harsh environments. If you have any other requests, please feel free to consult us. We will continue to strive to provide high-quality, high-functionality products tailored to our customers' various needs and applications. 【Features】 - Wear resistance and fatigue strength equivalent to SUS440C - Achieves excellent corrosion resistance - No coarse carbides, ensuring high fatigue strength and toughness - Excellent machinability allows for a reduction in manufacturing costs and processing time by half (compared to SUS440C) *For more details, please refer to the PDF or feel free to contact us.

• alloy

The PROVA series of corrosion-resistant, mirror-finish plastic mold steel is a high-quality special stainless steel optimized for plastic molding molds, achieved through new alloy design and special melting technology. It excels in corrosion resistance, wear resistance, and mirror finish, making it ideal for light guide plate molding molds and aspheric lens molding molds. 【Features】 - Excellent machinability with minimal wear on cutting tool edges → Reduces tool costs and contributes to automation - Good surface roughness after machining, which shortens subsequent mirror finishing time → Overall, contributes to lead time reduction and cost savings For more details, please contact us or download the catalog.

• Special Steel

The PROVA series of corrosion-resistant, mirror-finish plastic mold steel is a high-quality special stainless steel optimized for plastic molding molds, achieved through new alloy design and special melting technology. It excels in corrosion resistance, wear resistance, and mirror finish, making it ideal for light guide plate molding molds, aspheric lens molding molds, and more. 【Features】 ○ Excellent mirror finish ○ Excellent machinability ○ Excellent corrosion resistance For more details, please contact us or download the catalog.

• Special Steel

Developed a method for controlling microstructure that was not achievable with conventional special steel manufacturing methods, utilizing our unique special dissolution technology and plastic processing technology. We provide micro-controlled alloys that have fine crystal grains, low impurities, and are of high quality and high functionality. 【Features】 ○ A high-performance steel that surpasses powder high-speed steel with a highly balanced combination of wear resistance and toughness. For more details, please contact us or download the catalog.

• Special Steel

DURO-V5 is a new concept mold material that combines the toughness of matrix high-speed steel with superior wear resistance exceeding that of SKH51, thanks to a unique special dissolution technology developed by NACHI. 【Features】 ○ With high purity, it has fewer non-metallic inclusions, resulting in high toughness and fatigue strength. ○ The amount and size of carbides are optimally controlled, providing an excellent balance between toughness and wear resistance. For more details, please contact us or download the catalog.

• Special Steel

"DURO-FZ" is a matrix high-speed steel for hot work molds that achieves a high balance of toughness and heat resistance. Due to the adoption of special melting, it possesses high toughness as a matrix high-speed steel. It also has excellent heat resistance and wear resistance as a material for hot work molds. This document clearly presents the toughness, heat resistance, and wear resistance of "DURO-FZ" in graphs. Additionally, it provides detailed information on recommended heat treatment conditions, examples of heat treatment patterns (salt bath heat treatment, vacuum furnace heat treatment), and standards for steel selection. [Features] ■ High toughness due to the adoption of special melting ■ Suppression of mold cracking and chipping ■ High heat resistance and wear resistance ■ Low occurrence of heat checks ■ Heat treatment and surface treatment conditions compatible with other materials *For more details, please refer to the PDF document or feel free to contact us.

• Special Steel

Cutting-edge manufacturing requires cutting-edge materials. Based on this idea, Fujikoshi started developing materials to establish a consistent production system from materials to products. Now, on a global stage, its material technology meets the needs of diverse industrial sectors and is committed to pursuing further added value. 【Features】 - Concentration of high-grade special steel manufacturing technology - Expertise to meet a wide variety of needs - Near-net products that leverage diverse synergies - Production system capable of small-batch production and short delivery times - Assurance system that can be used with confidence For more details, please contact us or download the catalog.

• Special Steel

Thin and long wire materials such as drills and ejector pins undergo significant deformation during heat treatment, requiring considerable effort to become finished products. Setting up for hardening fixtures and correcting after hardening can lead to increased lead times and costs, and since heat treatment occurs close to the final process, any variation can be critical. Additionally, the demand for faster processing and longer service life has led to higher alloying of materials, which limits heat treatment conditions and makes it difficult to realize the original performance of certain steel grades. NACHI's pre-hardened wire is a high-performance, hardened and tempered wire developed to address the issues and concerns associated with such heat treatment, utilizing the technology and experience gained from high-speed tool steel manufacturing since the founding of Fujikoshi in 1928. 【Features】 ○ Stable heat treatment quality ○ Excellent heat treatment quality For more details, please contact us or download the catalog.

• Special Steel

NPR1-EX begins with the analysis of required characteristics under the plasticization environment of resins, based on the alloy design technology and special melting technology developed from NACHi's experience in high-grade special steel manufacturing. It enhances the durability characteristics against the latest super engineering plastics and engineering plastics. It is provided in various injection molding machine parts suitable for next-generation super engineering plastics and engineering plastics that address environmental issues. 【Features】 ■ Fundamental analysis of corrosion mechanisms using a new resin corrosion wear evaluation method developed through industry-academia collaboration ■ Demonstrates durability against corrosion wear specific to the plasticization process through FM ALLOY manufacturing equipment and alloy design technology *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The EXEO series utilizes NACHI's technology cultivated in the manufacturing of special steel, employing state-of-the-art vacuum induction melting furnaces and advanced melting techniques to produce high-purity, high-quality high-performance materials. EXEO-N80A is a heat-resistant alloy that utilizes precipitation strengthening of intermetallic compounds with excellent high-temperature strength equivalent to Nimonic 80A. It excels in high-temperature strength and corrosion resistance, making it particularly suitable for use in high-temperature and high-stress environments. 【Manufacturing Types and Dimensions】 ○ Round Steel: Dimensions: φ80–250 ○ Square Steel: Dimensions: □80–220 For more details, please contact us or download the catalog.

• alloy

The EXEO series is capable of responding to small-lot production of various types due to its flexible production facilities, allowing for short delivery times. Utilizing the technology developed in the manufacturing of special steel, NACHi produces extremely clean high-performance materials using vacuum induction melting furnaces and advanced melting techniques. EXEO-E900 is the first original nickel-based superalloy material from NACHI, featuring excellent strength characteristics in high-temperature environments around 900°C. 【Manufacturing Types and Dimensions】 ○ Peeling Round Steel: φ13–20 ○ Polished Wire: φ5–13 For more details, please contact us or download the catalog.

• alloy

The EXEO series is a material developed through a composite linked engineering approach that consolidates NACHI's technology, starting with the analysis of the required characteristics of the material, and utilizing alloy design technology and special melting techniques. EXEO-SP boasts excellent wear resistance and is optimal for parts where it is important to suppress surface roughness deterioration due to abrasion. 【Features】 ○ The alloy components are precisely controlled through special melting technology. ○ Thanks to a unique manufacturing method, carbides and alloy components (matrix components) are evenly distributed. ○ It is used as a component that reduces processability and manufacturing costs compared to conventional wear-resistant materials like cemented carbide. For more details, please contact us or download the catalog.

• Special Steel

The EXEO series is a material developed through a composite link-type engineering that consolidates NACHI's technology, starting with the analysis of the required characteristics of the material, and utilizing alloy design technology and special melting techniques. EXEO-M21 excels in notch strength, is clean with few impurities, and achieves high strength and high toughness. 【Features】 - Aging and nitriding can be processed simultaneously due to the same temperature range. - Excellent workability in both hot and cold processing, easy to cut, and has excellent weldability. - High strength (2000MPa) and high toughness can be achieved with aging treatment around 500°C. For more details, please contact us or download the catalog.

• Special Steel

The EXEO series of materials for functional components is a product developed through unique alloy design technology and special melting techniques. We provide products that enhance characteristics such as low thermal expansion, heat resistance, corrosion resistance, and strength, tailored to meet our customers' high-performance needs and applications, including aircraft, marine, and automotive parts, as well as ultra-precision machine components and injection molding machine parts. 【Features】 ○ Excellent low thermal expansion properties ○ Optimal as a material for precision machinery components For more details, please contact us or download the catalog.

• alloy

The precision mold steel "DURO Series," made using special melting equipment, includes high-speed steel, matrix high-speed steel, and hot work die steel, with a total lineup of eight steel types. This high-performance, high-quality tool steel is produced using special melting equipment (VIM, ESR), which controls the internal structure and reduces non-metallic inclusions. It offers higher durability compared to general mold materials such as SKH51, SKH40, SKD11, and SKD61. This catalog details the features and usage examples of high wear-resistant type "DURO-SP" for cold punching and high toughness type "DURO-FZ" for warm and hot forging. 【Lineup】 For Cold Work ■DURO-SP: High wear-resistant type, high-speed steel ■DURO-V5: High toughness and high wear-resistant type, high-speed steel ■DURO-V2: Ultra-high toughness type, matrix high-speed steel For Warm and Hot Work ■DURO-FZ: High toughness type, matrix high-speed steel ■DURO-N1: High toughness type, hot work die steel ■DURO-F1: High toughness type, matrix high-speed steel 【Usage Examples】 Mold for processing automotive parts, electrical components, shaft parts, bearings, gears, etc. (punching and forming processing)

• Special Steel

Nikkon is a comprehensive machinery manufacturer with a consistent production system from materials to products, contributing to the development of the manufacturing world. The materials business, which is responsible for manufacturing materials, sends a variety of products to the world through research and development of special steel manufacturing technology, plastic processing technology, and surface modification technology, earning the trust and patronage of users. The material manufacturing plant responds to the advanced and diverse industrial needs with high-level manufacturing lines and excellent quality control. 【Features】 ○ Steel alloy design technology ○ Ultra-precision processing technology ○ Inspection process management technology ○ Heat treatment coating technology ○ Component assembly processing technology For more details, please contact us or download the catalog.

• Special Steel