-

NIPPON KINZOKU Launches New Sales Expansion of Die Wear-Resistant Stainless Steel “L-DieL Finish” as an “Eco-Product”

original Difference in Wear Range between L-DieL Finish and General Materials *Base material: SUS304, 1/2H, 0.1mm, Clearance: 5µm, Stroke: 600spm

Difference in Wear Range between L-DieL Finish and General Materials *Base material: SUS304, 1/2H, 0.1mm, Clearance: 5µm, Stroke: 600spm

TOKYO--(BUSINESS WIRE)--NIPPON KINZOKU CO., LTD. (Headquarters: Minato-ku, Tokyo) will strengthen sales of its environmentally friendly product, L-DieL (Long Die Life) finish stainless steel, which reduces die wear. L-DieL Finish modifies (softens) the passive oxide film on the surface of stainless steel, thereby reducing die wear during pressing operations and contributing to improved productivity and cost savings for our customers.

The passive oxide film that maintains the corrosion resistance of stainless steel is mainly composed of chromium oxide and is extremely hard. Although the film thickness is only about 10 nanometers, it has a detrimental effect (accelerated wear) on press dies that come into repeated contact. To soften this film and reduce die wear, we have developed the L-DieL finish as a surface treatment.

We have certified our L-DieL finish as an “Eco-Product,” which improves productivity and reduces costs for our customers. Our goal is to achieve net zero CO₂ emissions by 2050, and we are committed to sustainable manufacturing through the widespread use of environmentally friendly materials.

Additionally, this product aligns with our 11th management plan, "NIPPON KINZOKU 2030," and is a unique product that meets customer needs based on the "Near Net Performance" keyword (achieving the required performance of the final product with the material).

Features of L-DieL Finish

  1. Reducing die wear during press processing, expected to extend die life.
  2. Compatible with most stainless steels, including SUS304, SUS430, and various surface finishes.
  3. Chemical composition and mechanical properties comply with JIS standards.
  4. Appearance and corrosion resistance are equivalent to those of general-purpose stainless steel.

L-DieL Finish Structure
Our unique surface treatment technology softens the passive oxide film. This reduces die wear and decreases the frequency of maintenance.
https://www.nipponkinzoku.co.jp/assets/images/2025/03/l-diel_en_main-620x350-1.jpg

Manufacturing Range
Steel Types: SUS304, SUS430, etc.
Finish: Spring, BA
Thickness [mm]: 0.08–0.50
Width [mm]: 600 or less

Click here for more details.
https://www.nipponkinzoku.co.jp/assets/images/2025/07/525b3b21fd450afefd516123f0400db3.pdf

About NIPPON KINZOKU Group
Our products have been used in a range of areas from the precision field to the construction industry. https://www.nipponkinzoku.co.jp/en/

Contacts

Production Process & Support Dept.
NIPPON KINZOKU CO., LTD.
Email: sisaku-sc@nipponkinzoku.co.jp
https://www.nipponkinzoku.co.jp/en/inquiry

Industry:

NIPPON KINZOKU CO., LTD.

TOKYO:5491
Release Versions
EnglishChinese TraditionalChinese Simplified

Contacts

Production Process & Support Dept.
NIPPON KINZOKU CO., LTD.
Email: sisaku-sc@nipponkinzoku.co.jp
https://www.nipponkinzoku.co.jp/en/inquiry

More News From NIPPON KINZOKU CO., LTD.

NIPPON KINZOKU Accelerates Global Sales of Ultra-Thin Electrical Steel Strips "GT Series" and "ST Series" as "Fine Eco Metal" Environmentally Friendly Products

TOKYO--(BUSINESS WIRE)--NIPPON KINZOKU CO., LTD. (Headquarters: Minato-ku, Tokyo; President: Yasushi Shimokawa; TOKYO: 5491) and its subsidiary, NIKKIN DENJI KOGYO CO., LTD. (Headquarters: Kawaguchi, Saitama; President: Akira Nishimura), are launching a strategic sales initiative for their ultra-thin Grain-Oriented (GT Series) and Non-Oriented (ST Series) electrical steel strips under the brand name "Fine Eco Metal". "Fine Eco Metal" is a brand name for our proprietary "Eco-Product" series, cer...

NIPPON KINZOKU Introduces New “Decorative Stainless Steel Finishes for Exterior Use” Achieving Diverse Metallic Designs from Mirror-Like to Jet Black

TOKYO--(BUSINESS WIRE)--NIPPON KINZOKU CO., LTD. (Headquarters: Minato-ku, Tokyo; President: Yasushi Shimokawa; TOKYO: 5491), a leading manufacturer of cold-rolled stainless steel, today introduced its new "Decorative Stainless Steel Finishes for Exterior Use." These premium cold-rolled stainless steel strips—extensively used in automotive moldings and telecommunications enclosures—are engineered to help manufacturers eliminate post-processing steps such as polishing and painting, while signifi...

NIPPON KINZOKU’s “FINE PIPE” Series Welded Drawn Pipes Outperforming Seamless Pipes

TOKYO--(BUSINESS WIRE)--NIPPON KINZOKU CO., LTD. (TOKYO:5491) (Headquarters: Minato-ku, Tokyo) has commercialized its “FINE PIPE” series *1, -welded drawn pipes that outperform traditional seamless pipes. By leveraging its unique expertise as a material manufacturer and proprietary processing technologies (welding, drawing, and annealing), the company delivers high-quality, eco-friendly, and cost-effective solutions. FINE PIPE is already widely adopted across various sectors, including automoti...
Back to Newsroom