Mullite‑Silicon‑Carbide‑Carbon Brick: Composite Refractory for Hot‑Metal Handling Systems

TY Refractory’s premium Mullite‑Silicon‑Carbide‑Carbon Brick is compound‑sintered from high‑purity mullite, silicon carbide and graphite‑carbon materials. It combines mullite’s high‑temperature structural stability, SiC’s superior thermal conductivity and abrasion resistance, plus carbon’s non‑wetting property against molten iron, to resist severe thermal shock, slag corrosion and high‑velocity metal scouring.

This composite brick delivers stable key performance: bulk density 2.65‑2.85 g/cm³, apparent porosity ≤16%, cold crushing strength ≥45 MPa, refractoriness‑under‑load above 1650°C, and it survives over 30 water‑cooling thermal‑shock cycles. Its low‑porosity dense matrix effectively blocks slag penetration, reaching a service life of 800‑1200 heats under regular torpedo‑car operating conditions.

It is widely adopted for torpedo ladle cars, hot‑metal ladles and blast furnace runners in steel mills. Custom‑shaped bricks can be manufactured strictly in accordance with customer drawings for special lining geometries.

Backed by over 30‑year refractory manufacturing experience, our factory holds complete ISO triple‑system certifications and 21 proprietary technical patents. Strict multi‑batch laboratory inspection guarantees consistent product quality. Global steel plants select our composite bricks to extend furnace campaign cycles and cut frequent relining expenses. Contact our engineering team for full test datasheets and competitive bulk quotations.