Japan’s Nippon Kinzoku Introduces STA 
(Special Tension Annealing) Finish for Stainless Steel

Japan’s Nippon Kinzoku Co., Ltd. has introduced a new STA (Special Tension Annealing) finish stainless steel product, part of its eco-product series, designed specifically for microfabrication and high-precision applications. This launch not only strengthens the company’s role in advanced manufacturing but also reflects its commitment to sustainability and net-zero emissions by 2050.
 

🌱 Environmentally Friendly Stainless Steel Innovation

The new STA finish builds upon Nippon Kinzoku’s proven TA (Tension Annealing) stainless steel, widely known for its flatness and dimensional stability. The upgraded STA version further reduces warping during etching processes, delivering higher accuracy in microfabrication.

By refining crystal grain size, the STA finish also ensures smoother etched surfaces, critical for components requiring precise detail and surface integrity. This improvement aligns with Nippon Kinzoku’s “Near Net Performance” strategy, which emphasizes minimizing processing steps, reducing material waste, and cutting energy consumption.
 

📌 Applications in High-Tech Industries

The STA finish stainless steel is expected to play a vital role in precision-driven industries, including:
    •    5G communications – for advanced, reliable components
    •    Semiconductors – requiring ultra-flat and smooth etched surfaces
    •    Mobile devices – precision stainless steel parts for compact designs
    •    Metal masks and smartphone parts – where stability and high-quality finish are essential
 

🔍 Why STA Matters for the Stainless Steel Industry

With global stainless steel markets shifting toward sustainability and innovation, Nippon Kinzoku’s STA finish represents a step forward in eco-friendly manufacturing solutions. By reducing waste, cutting energy usage, and supporting precision applications, the product not only benefits high-tech industries but also contributes to Japan’s green transformation goals.

As stainless steel demand grows in electronics, semiconductors, and mobile technology, products like STA are positioned to become essential materials in the supply chain.