Why Are More Foundries Switching to Calcium Silicon Cored Wire? A Look Into the Industry Trend

In recent years, Calcium Silicon (CaSi) cored wire has gained widespread adoption in steel plants and foundries across the globe. With its precise alloy addition, superior inclusion modification, and stable metallurgical performance, CaSi cored wire is quickly becoming an industry-standard refining material.

As a leading manufacturer, Anyang Hongshun Industrial Co., Ltd. has been at the forefront of this transition, supplying high-quality CaSi cored wire that meets the evolving needs of modern steelmaking.

The Rising Demand for Smarter Refining Solutions

Growing Expectations for Clean Steel

The demand for cleaner steel continues to rise in high-end sectors such as automotive, aerospace, and energy. Calcium treatment is essential for modifying inclusions and improving steel flow.

CaSi cored wire delivers consistent calcium recovery, enabling steel plants to meet stricter quality requirements with greater reliability.

Comparison of Alloy Feeding Methods

CaSi Cored Wire vs Traditional Feeding Methods

Key Advantages Driving the Industry Shift

1. Improved Inclusion Modification

Calcium converts solid alumina inclusions into liquid or semi-liquid calcium aluminates more effectively when introduced through CaSi cored wire, resulting in smoother steel flow, fewer clogging issues, improved surface quality, and more stable mechanical properties.

2. Higher Calcium Recovery Rates

The steel-strip sheath of CaSi cored wire prevents premature oxidation and enables the calcium to be released at the optimal depth, giving significantly higher recovery rates compared with conventional lump or powder feeding and improving overall alloying efficiency.

3. Lower Overall Production Costs

Although CaSi cored wire may seem more expensive initially, its metallurgical benefits—such as reduced nozzle blockage, shorter tundish downtime, lower defect rates, and decreased alloy consumption—translate into substantial cost savings and improved plant productivity.

4. Enhanced Casting Performance

CaSi treatment contributes to better castability, particularly in continuous casting, providing more stable steel flow, fewer interruptions, higher process reliability, and increased output per heat.

Why Foundries Are Switching Now

1. Industry-Wide Shift Toward Automation

Automated wire feeding systems integrate seamlessly with modern refining technologies. As more plants upgrade their equipment, cored wire becomes the natural choice.

2. Greater Focus on Sustainability

Better calcium utilization leads to:

• Less alloy waste

• Reduced emissions in the refining process

• Improved energy efficiency

Sustainability initiatives are pushing many foundries toward more efficient solutions like CaSi cored wire.

3. Rising Competitiveness in Global Steel Markets

To stay competitive, foundries must deliver consistent, high-performance products. CaSi cored wire helps them meet international quality standards while keeping production cost-effective.

With the rapid modernization of steel plants worldwide, CaSi cored wire is poised to become standard practice. Hongshun, with its strong manufacturing capacity, customization options, and export experience, is committed to supporting this global shift.

As industries demand higher cleanliness standards and better metallurgical consistency, Anyang Hongshun Industrial Co., Ltd. will continue providing reliable materials and technical support to help customers achieve cleaner steel, greater efficiency, and long-term cost advantages.