日本金属 List of Products and Services

NK-301ZF is a spring material that achieves high strength and excellent workability while being within the chemical composition range of SUS301 (JIS). It has even higher strength than standard SUS301 and achieves high durability by suppressing non-metallic inclusions in the steel. Additionally, by optimizing the rolling conditions, it exhibits greater ductility than standard SUS301 spring materials, resulting in superior workability.

• stainless

Materials used for thin-walled welded pipes, such as those represented by injection needles, require not only stable weldability but also good drawability. Our company offers a steel grade based on the chemical composition of SUS304, which improves both weldability and drawability. Additionally, components that comply with the cobalt regulation (Co: below 0.1%) of the European Medical Device Regulation (MDR) enacted in May 2021 are also available.

• stainless

1) Thickness Precision Achieved a thickness tolerance of ±1.0μm with advanced foil-specific rolling mills. We guarantee world-class thickness precision. (Product thickness: 50μm or less) 2) Surface Finish We can accommodate various surface finishes according to customer requests, from high-gloss to matte. 3) Immediate Delivery Available We maintain stock of major steel grades (SUS301, SUS304) and can offer small lot and immediate delivery sales. (Special products sales by our company) *For more details, please refer to the PDF document or feel free to contact us.

• stainless

In recent years, electronic devices represented by smartphones and game consoles have shown significant miniaturization and low-profile designs. Until now, measures to avoid short circuits have involved using insulating tape or composites with resin at points where conductive parts are touched, but this has hindered cost reduction and miniaturization. Against this backdrop, our company has uniquely developed a pre-coated FI finish with an inorganic film (approximately 1μm thick) that has insulating resistance on a stainless steel surface. The FI finish does not require surface treatment in post-processing, making it a space-saving product that contributes to our customers' process simplification, productivity improvement, and cost reduction.

• stainless

This pipe, processed with unique techniques (welding, drawing, annealing) using the optimal materials, achieves characteristics that surpass those of "seamless pipes." Through our self-developed equipment and unique technology, created from years of know-how, we deliver reliable quality and the highest level of assurance to our customers.

• stainless
• Other metal materials
• Non-ferrous metals

Fine profiles are steel materials with various cross-sectional shapes such as trapezoidal, hexagonal, convex, and concave. At Nippon Metal, we can meet demands for cost reduction by omitting the cutting process through four-direction rolling technology, as well as for long, high-precision products. Our products are widely used by users in fields ranging from precision to construction.

• stainless
• Special Steel
• Non-ferrous metals

1. Natural coloring Unlike coloring with dyes or pigments, fading due to ultraviolet rays does not occur at all. Weather resistance is also good. 2. Transparent film Since the coloring is due to a thin transparent oxide film, a color tone that utilizes the metallic feel of stainless steel can be achieved. 3. Corrosion resistance and wear resistance The surface is treated with a special hard film process (hardening), providing excellent corrosion and wear resistance. 4. Workability Because the coloring is due to a thin oxide film, adhesion is good, allowing for bending and light pressing processes. 5. Heat resistance Discoloration is not observed up to 300°C in the atmosphere. 6. Environmental impact Since no dyes or pigments are used, the contained substances are the same as those in general stainless steel, allowing for similar recycling.

• stainless

This document provides information about the ultra-thin electromagnetic steel strip products handled by our company. It introduces in detail the ultra-thin oriented electromagnetic steel strip "GT series" and the ultra-thin non-oriented electromagnetic steel strip "ST series," highlighting features such as low loss and miniaturization. Additionally, it explains the manufacturing process, the range of dimensions that can be produced, and dimensional tolerances in detail using diagrams and tables. Please make use of this information when selecting products. 【Contents (partial)】 ■ History of the Japan Metal Group's ultra-thin electromagnetic steel strip ■ Features of ultra-thin electromagnetic steel strips ■ Ultra-thin oriented electromagnetic steel strip GT series ■ Ultra-thin non-oriented electromagnetic steel strip ST series ■ Manufacturing process *For more details, please download the PDF or feel free to contact us.

• Special Steel

The "GT Series" is a directional ultra-thin electromagnetic steel strip with excellent magnetic properties in the high frequency range (400 to 10 kHz). With a thickness of less than 0.12 mm, it can effectively minimize energy loss due to eddy currents. The insulation coating is uniform and extremely thin, approximately 1 μm, allowing for an increased stacking rate. Additionally, it is a steel sheet that possesses exceptionally good magnetic properties in one direction (rolling direction) and is used as a wound core. 【Features】 ■ Low iron loss: With a thickness of less than 0.12 mm, it effectively reduces eddy current loss. ■ Temperature rise suppression: The reduction in eddy current loss helps to suppress temperature rise. ■ Insulation coating: Uniform and extremely thin at around 1 μm, enhancing the stacking rate. ■ Magnetic properties: Exhibits exceptionally good magnetic properties in one direction (rolling direction) only. *For more details, please download the PDF or feel free to contact us.

• Special Steel

The "ST Series" is a non-oriented ultra-thin electromagnetic steel strip with a thickness of 0.15mm or less, which can minimize energy loss due to eddy current generation. The reduction of eddy currents suppresses heat generation, making it effective for items that require thermal management. The insulation coating is uniform and extremely thin, approximately 1μm thick, allowing for an increased stacking rate. Additionally, it is a steel sheet with excellent magnetic properties in all directions, primarily used for punching and as a laminated core. Please feel free to contact us if you have any inquiries. 【Features】 ■ Low iron loss: With a thickness of 0.15mm or less, it minimizes eddy current loss. ■ Temperature rise suppression: It suppresses temperature rise. ■ Insulation coating: Extremely thin and uniform at about 1μm, enhancing stacking rate. ■ Magnetic properties: Excellent magnetic properties in all directions. *For more details, please download the PDF or feel free to contact us.

• Special Steel

We would like to introduce our newly developed "new alloy for magnesium alloy secondary battery anodes." Magnesium alloy secondary batteries are the future batteries that address the disadvantages of currently prevalent lithium-ion batteries. The main features of magnesium alloy secondary batteries are: 【Features】 ■ High capacity per volume (magnesium is a divalent cation) ■ Abundant resources (low likelihood of depletion of metal resources for secondary batteries) ■ High safety (low risk of ignition due to dendrite growth) ■ Low cost as a product (reduction in costs for separators and cases) Through innovative alloy design, we have confirmed an improvement in battery activity compared to conventional alloys (such as AZ31B). *We are advancing development towards practical application, but we believe that commercialization will take time. For more details, please refer to the PDF materials or feel free to contact us.

• Secondary Cells/Batteries

The "ZA series new magnesium alloy rolled material" is a product that overcomes the weaknesses of magnesium alloys. It is a new alloy that combines excellent room temperature formability, thermal conductivity comparable to aluminum, and internal loss similar to damping alloys. 【Features】 ■ Good formability: An Erichsen value of 8.6mm, equivalent to aluminum alloys at room temperature. Formability comparable to aluminum alloys at 150°C. ■ High heat dissipation: Thermal conductivity approaching that of aluminum alloys at 131W/mK. ■ High damping properties: Superior damping performance compared to general magnesium alloys. The ZA series new alloy rolled material is a promising new material suitable for use in transportation equipment (electric vehicles, autonomous vehicles, flying cars, etc.) and mobile IT devices, where weight reduction and thermal management are essential. *For more details, please refer to the PDF document or feel free to contact us.

• alloy

We handle "magnesium alloy strips" that are manufactured using our self-developed rolling mill and unique rolling technology, which possess high-quality surface appearance and excellent workability. We can produce various magnesium alloy strips according to customer requests. Utilizing our network for processing (such as pressing) and surface treatment, we provide comprehensive support not only for material supply but also for commercialization. Please feel free to consult us if you have any requests. 【Product Lineup】 ■AZ31B: Warm workability ■LZ91: Ultra-lightweight ■AM60: High strength and high corrosion resistance *For more details, please download the PDF or feel free to contact us.

• others