DZNS Refractory Metal 1800

Supercritical refractory concrete for metallurgy. DZNS Refractory Metal 1800 is a supercritical high-temperature refractory concrete in the form of a dry packaged mixture, designed for the most heavily loaded areas of metallurgical production with temperatures up to 1800 °C. The material is designed for stable and long-term operation in conditions of extreme thermal stress, aggressive slags, intense heat radiation and continuous production cycles.

Temperature resistance

• Maximum operating temperature: up to 1800 °C
• Recommended operating temperature: up to 1700 °C

Scope of application (metallurgy)

Used for:

• Lining blast furnaces, smelting and steelmaking furnaces;
• Areas of direct contact with flames and melts;
• High-temperature melting chambers;
• Continuous metallurgical units;
• Ladles, chutes and heat chambers;
• Particularly critical industrial areas.

Features of the metallurgical environment:

The material is specially adapted to:

• Extremely high temperatures;
• Aggressive effects of metallurgical slags;
• Intense heat radiation;
• Thermal shocks;
• Long continuous operating cycles.

Main advantages

• Supercritical heat resistance up to 1800 °C
• Exceptional mechanical strength after hardening
• High resistance to aggressive slags
• Minimal shrinkage even at extreme temperatures
• Stable microstructure without cracking
• Long-term operation in metallurgical conditions

Technical features

• Material type: dry concrete mix;
• Structure: dense, optimised for ultra-high temperatures;
• Binder: special supercritical mineral;
• Filler: high-purity refractory filler of a special grade;
• Heating behaviour: stable under prolonged exposure to temperatures up to 1800 °C.

Recommendations for use

1. Mix with clean water until a homogeneous plastic mass is obtained;
2. Apply to a thoroughly prepared and cleaned surface;
3. Avoid rapid drying after application;
4. Perform the first heating in stages and in a controlled manner, with a slow increase in temperature.

Packaging

• Bag — 25 kg
• BigBag — 1000 kg (with polypropylene liner for moisture protection)