One Plant, Four Systems, Full Coverage
From ironmaking to continuous casting — zonal lining architectures, product mapping and proven references for every furnace in the steel plant.
Ironmaking & Hot Metal Handling
The extended campaign life of blast furnaces and the thermal efficiency of hot-metal handling directly dictate a steel plant's profitability. XZK masters every extreme challenge of the ironmaking front end — from complex isotherm control in the hearth to severe high-temperature creep and violent mechanical scour.
- 15+ year BF campaign design
- 1150°C isotherm locked inside the lining
- Zero-subsidence stove checkerwork
- Maintenance-free ASC casthouse runners
Blast Furnace
Zonal lining from stack wear zones to the microporous carbon + ceramic cup hearth.
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Hot Blast Stove
Ultra-low creep bricks and high-capacity checkers for extreme blast temperatures.
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Casthouse & Torpedo Ladle
ASC castables, waterless taphole clay and ASC/AMC torpedo linings.
View 3D Lining ConfigurationCore Steelmaking Systems
Inside BOFs and EAFs, linings endure violent oxygen blowing, extreme arc radiation and heavy scrap impact — extreme thermal shock and aggressive basic-slag attack at the same time. XZK's magnesia-carbon composite technology and high-purity basic matrices build indestructible campaign defenses while keeping the steel free of refractory-borne contamination.
- Synchronized zonal wear design
- High-purity fused magnesite MgO-C
- Corundum-spinel roof deltas
- Long-life EBT tapping systems
Secondary Refining & Casting
At the refining and casting stage, refractories evolve from passive insulation into functional media for fluid control and steel purification. XZK develops low-carbon and carbon-free lining systems for ladles, RH/VD degassers and tundishes — blocking inclusions at the source and holding precise, constant flow through ultra-long casting sequences.
- Ultra-low-carbon slag line systems
- Carbon-free tundish dry linings
- Anti-clogging flow-control components
- Isostatic shrouds, stoppers & SENs
Auxiliaries & Maintenance
Campaign life is decided as much by maintenance as by the original lining. XZK's auxiliary systems — high-efficiency insulating bricks, hot repair mixes, filler sands and injection materials — keep furnaces online longer, while our EPC team delivers design, procurement, construction and heat-up as a single turnkey package.
- High-efficiency insulating linings
- Fast hot-repair & gunning systems
- Full EPC turnkey delivery
- 7×24 technical support hotline
Refractory Mortar
XZK refractory mortar covers ten families — fireclay, high-alumina, andalusite, corundum, silica, magnesia, magnesia–spinel, carbon, SiC and corundum–SiC — in heat-setting, air-setting and phosphate-bonded systems, matched to the brick being laid.
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Refractory Cement
XZK calcium aluminate refractory cement in nine grades across three families — CA50 (A600/A700/A900), CA70 (CA70/CA70W/CA70S) and CA80 (CA75/CA80/CA80S) — tested to GB/T 201-2015, for castables, mortars, gunning mixes and precast shapes.
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Magnesia Hot Repairing Mass
XZK magnesia hot repairing mass (MgO ≥80%) is placed on the hot face of BOF and EAF linings and sintered in situ, graded by repair zone for fettling campaigns between relines.
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Magnesia Gunning Mix
XZK magnesia gunning mix restores worn slag lines and hot spots between planned relines, levelling the wear profile so the vessel stops being taken out of service by a single zone.
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Ladle Filler Sand
XZK ladle filler sand is graded for reliable free opening, preventing the costly and disruptive event of a ladle that will not open on its own at the caster.
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Water-Free Injection Mix
XZK water-free injection mixes are pumped into voids behind blast furnace linings and cooling elements without adding water, restoring thermal contact and sealing gas paths.
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High-Conductivity Carbon Ramming Mass
XZK high-conductivity carbon ramming mass fills the gap between the hearth carbon and the cooling system, completing the thermal path that keeps the 1150 °C isotherm inside the lining.
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High-Alumina Runner Brick (Teeming Hollow Ware)
High-alumina teeming runner bricks (65–75% Al₂O₃) for bottom-pour ingot casting, with diamond-finished internal flow channels, low iron content and ≥ 8 thermal shock cycles at 1100 °C.
View ProductWhy Steel Plants Choose XZK
Every proposal is a zone-by-zone material schedule matched to your furnace profile and operating practice — so all zones reach end-of-life together.
Fully automatic CNC batching and zero-defect quality control keep batch-to-batch variation at laboratory level.
Supplied to Baosteel, Shougang, Hyundai Steel, JSW, Severstal, MMK and 400+ furnace projects across 60+ countries.
Lining design, masonry supervision, heat-up curves and failure analysis — plus EPC turnkey delivery for new builds and relines.
Send Us Your Furnace Drawing
Our engineers will return a zonal lining proposal with material schedule and quotation within 48 hours.
Strict ISO 9001 Process Control Across All 6 Workshops
Every batch of raw materials is chemically assayed. Finished refractory shapes undergo density, ultrasonic non-destructive testing, and pre-assembly gap verification prior to global packaging.
- Raw material ICP chemical assay on every incoming batch
- Density, porosity and cold crushing (CCS) tests per ASTM / ISO
- Ultrasonic non-destructive testing of finished shapes
- Pre-assembly gap verification before seaworthy packaging