FAQ

Castables are monolithic refractories formed by casting or gunning on site, ideal for complex shapes and integral linings with fast installation. Refractory bricks are pre-fired shaped products for regular structures requiring high erosion resistance. We offer integrated solutions for both, please share your service conditions (temperature, media, zone) for selection advice.

Castables typically cover 900℃ to 1800℃: lightweight insulating 900-1400℃, high-alumina 1400-1600℃, corundum grades up to 1700-1800℃. Selection depends on the zone, atmosphere and expected service life.

Key points: strictly control water addition, use forced mixers with proper mixing time, secure formwork, vibrate to full density without over-vibration, keep the cast moist during curing, and follow the drying curve during first heat-up to avoid explosion. We provide free installation guidance and on-site service.

Precast blocks are formed, cured and pre-fired in factory: consistent quality, high dimensional accuracy, much faster on-site installation that shortens outage time, and no site curing or baking needed. Ideal for tight outage schedules and complex furnace geometries.

Yes. We have mature formulations for steel, cement, glass, non-ferrous, power, petrochemical and waste-to-energy industries, and can tailor aggregate, binder and additive systems to your specific conditions, including sample testing.

Low-cement castables use micro-powder technology to reduce CaO below 2.5% (ultra-low-cement ≤1%), producing less liquid phase at high temperature, giving superior hot strength, slag resistance and wear resistance for demanding zones like ladles and runners, though water control during installation is more critical.

Standard packaging is double-layer woven bags (25kg/50kg); jumbo bags or moisture-proof wooden cases available on request. Located in Xuanhua Town Industrial Park, Henan, we ship nationwide and overseas with dedicated trucks for large orders.

Our main runner castables achieve 180,000-250,000 tonnes per campaign depending on maintenance and service conditions, with hot-repair capability that significantly cuts refractory consumption per tonne of iron. Provide your BF volume and slag ratio for recommendations.

Yes. Free samples with physical & chemical test reports are available for standard products; new formulations or large orders can start with small trial batches before signing long-term supply agreements.

We offer selection consulting and formulation customization, free installation guidance, heat-up curve recommendations, service follow-ups with failure analysis, fast replenishment and on-site support to ensure stable lining performance throughout its life cycle.