Steel Plant Solves Furnace Corrosion with Laser Cladding and Colmonoy® 625.

Laser cladding of furnace skid posts with Colmonoy® 625 to Prevent Hot Gas Corrosion

Wall Colmonoy provides advanced laser cladding solutions for skid posts, helping UK steel manufacturers extend equipment life and reduce costly downtime. By applying Colmonoy® 625, a high-performance nickel-based alloy, skid posts gain superior protection against hot gas corrosion in reheat furnaces.

Key Benefits of Laser Cladding with Colmonoy® 625

• Excellent resistance to high-temperature hot gas corrosion
• Substantial cost savings compared to full component replacement
• Reduced maintenance frequency and downtime in steel production
• Extended service life of critical furnace components

Solving Reheat Furnace Challenges

The reheat furnace environment is extremely demanding. Furnace skid posts are continuously exposed to:

• High operating temperatures
• Corrosive gases (including sulfur compounds)
• Mechanical stress and fatigue

These harsh conditions often lead to premature failure of skid posts, exposing internal water-cooling systems and increasing maintenance costs. Unplanned downtime in this stage can disrupt the production and supply of hot rolled coil, impacting downstream processes.

Colmonoy® 625 Protects Against Corrosion

Laser cladding skid posts with Colmonoy® 625 creates a durable protective layer that resists sulfur-induced hot gas corrosion. Its enhanced composition, including higher levels of chromium and molybdenum, provides outstanding resistance to multiple corrosion mechanisms—outperforming conventional alloys in high-temperature environments.

Proven Results for Steel Manufacturers

A leading UK steel producer partnered with Wall Colmonoy to address ongoing furnace component failures.

Coating skid posts with Colmonoy® 625 significantly increases component lifetime in extremely challenging conditions while improving process stability. Colmonoy® 625 can be applied using a range of techniques tailored to the application.

Learn More

Explore more steel industry applications or contact us to discuss how laser cladding can improve your equipment performance and reliability.