Nippon Kinzoku Unveils Innovative Stainless Steel Surface Finishes

Nippon Kinzoku Co., Ltd., a leading manufacturer based in Minato, Tokyo, has recently introduced a groundbreaking range of surface finishing materials using cold-rolled stainless steel. This product is designed specifically for exterior applications in the automotive industry and enclosures for communication devices, such as smartphones and mobile PCs. The new surface finishes not only enhance aesthetic appeal but also offer significant manufacturing advantages by streamlining processes and reducing environmental impact.

Product Features and Advantages

Nippon Kinzoku's surface finishing products feature a diverse array of styles that cater to the unique design concepts required by various sectors. The stainless steel strip produced by the company utilizes an innovative "coil-to-coil" processing method, honed through decades of rolling technology. This approach ensures a balance of uniqueness in design and consistent high quality, while also maintaining high productivity levels.

The benefits of integrating these surface finishes include:

- Simplification of Processes: Customers can eliminate the steps of polishing, painting, and surface treatments (like anodizing), leading to improved yield rates.
- Reduction of Environmental Impact: The new finishing methods help reduce CO₂ emissions due to fewer manufacturing processes. The company’s environmentally friendly product, branded as "Eco Product," contributes significantly to achieving carbon neutrality by 2050.

Furthermore, this product aligns with one of the key concepts of Nippon Kinzoku's 11th management plan "NIPPON KINZOKU 2030"—termed "Near Net Performance," focusing on achieving the desired performance characteristics of end products through material innovations.

Surface Finish Variations Available

Depending on the design requirements, customers can select from a variety of surface finishes:

- BA5 (Bright Annealing): This is a refined version of standard BA (bright annealed) finishes, boasting superior luster due to unique processing techniques.

- nanoBA: Offering a mirror-like finish achieved solely through cold processing, this option eliminates or reduces post-processing polishing efforts. The surface roughness is meticulously controlled at a nano level, giving rise to its name.

- PW (Pearly White): Focusing on achieving an elevated level of brightness, this satin-like finish features different surface roughness levels, indicated as PW3 to PW10.

- PF (Pearly Finish): This finish creates micro-textures on the surface to achieve a matte appearance that minimizes the visibility of scratches and fingerprints. Different roughness levels from PF10 to PF99 are available.

- FB (Fine Black): By creating an ultra-thin transparent oxide film, this finish achieves a deep, metallic black through light interference and absorption, enhanced by a special hard coating process that provides superior corrosion and wear resistance.

- M-FB (Matte FB): Developed in response to the market demand for a matte finish, this option combines the qualities of FB with a more subdued texture.

Among these, the Fine Black finish has been co-developed with Toyo Chemical Industry Co., Ltd., integrating high-quality materials from Nippon Kinzoku with unique coloration technology from Toyo.

In addition, traditional stainless steel finishes like 2D (atmospheric annealing and acid pickling) and further processed 2B finishes are also available, with customization options that may combine multiple finishes to create distinct textures.

Leading Industry Standards

Nippon Kinzoku's dedicated equipment, honed from its expertise in cold rolling technology, enables it to meet diverse customer demands with industry-leading products. The company's commitment to innovation aligns with its ambition to be a