Published 2 days ago • loading... • Updated 2 days ago

FZE Manufacturing Showcases ISO-Certified Stainless Steel Passivation Services

On March 11, 2026, FZE Manufacturing Solutions LLC announced ISO 9001:2015–certified stainless steel passivation services from its North Fond du Lac, Wisconsin facility, employing a citric acid–based method.
Passivation removes free iron and surface contaminants, forming a protective chromium oxide layer that improves corrosion resistance—essential for medical device, pharmaceutical, food and beverage, aerospace, and military applications.
FZE's process begins with alkaline cleaning, proceeds through citric acid immersion and deionized rinses, and concludes with salt spray and copper sulfate testing. Dimensional and visual inspections verify tolerances before shipment.
Processing equipment and storage vessels gain extended service life and reduced contamination risk. FZE pairs passivation with just-in-time and quick-turn options, reporting consistent on-time delivery to meet urgent customer schedules.
Founded in 1974, FZE integrates CNC machining, metal fabrication, welding and assembly services alongside passivation, positioning the company to serve end-to-end production for regulated sectors including aerospace and military applications.

Insights by Ground AI