Alloy Series

Ferrosulfur (FeS) Wire
– Precision Sulfur Alloying and Machinability Enhancement Solution

Ferrosulfur (FeS) Wire is a specialized cored‑wire additive designed for accurate and controlled introduction of sulfur into molten steel and cast iron. With high‑purity FeS as the core material, it enables precise sulfur adjustment, excellent yield, and uniform distribution, effectively improving machinability, promoting chip‑breaking, and enhancing the performance of free‑cutting steels and high‑sulfur special alloys.

Produced using high‑integrity steel strip and tightly controlled filling technology, this cored wire ensures consistent sulfur content, smooth feeding, and minimal fume generation, allowing clean and efficient sulfur addition in ladle treatment, tundish feeding, or casting stream applications. It helps achieve target sulfur levels with high repeatability while reducing slag formation and minimizing environmental impact.

We provide steel mills and foundries with customizable sulfur content (20–35% S), various wire diameters, and tailored feeding‑system recommendations to meet the specific needs of free‑cutting steel, gear steel, stainless steel, and high‑sulfur cast iron production. Backed by technical expertise and reliable supply, we are committed to being your strategic partner in achieving superior machinability, optimized alloying costs, and consistent process control.