Trusted Chinese Refractory Manufacturer Since 2000

Zonal Refractory Lining Systems for Iron & Steel Plants

From blast furnace hearth to continuous caster — MgO-C, corundum, SiC-carbon, low-creep and flow-control refractories engineered for synchronized wear.

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Trusted Chinese Refractory Manufacturer Since 2000

Magnesia Carbon Brick for BOF, EAF & Steel Ladles

Zonal grade matrix from 4% to 19% carbon and 72–89% MgO, tested per ASTM C830 / C133 / C583 — with a free 48-hour lining schedule.

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Trusted Chinese Refractory Manufacturer Since 2000

48-Hour Zonal Lining Proposal, Straight From the Factory

Send your vessel tonnage, slag basicity and wear photos. Our metallurgical engineers return a grade-by-grade lining drawing and consumption forecast.

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20+ Years Heritage

60+ Export Countries

100Kt Annual Capacity

400+ Furnace Projects

90+ National Patents

XZK Group engineers zonal refractory lining systems for iron and steel plants — from the blast furnace hearth through the casthouse, converter, electric arc furnace, ladle metallurgy and continuous casting. We are a source manufacturer in Xinmi, Henan: six workshops, 100,000 metric tons of annual capacity, 93 core patents, and ISO 9001 / 14001 / 45001 / 50001 certification.

We do not sell one brick for every position. We assign a specific grade to every wear zone of your vessel so that all zones reach end-of-campaign together — because a lining is only as long-lived as its weakest zone.

$XZK Group refractory production — 1$

$XZK Group refractory production — 2$

$XZK Group refractory production — 3$

$XZK Group refractory production — 4$

Product Portfolio

Engineered Refractories by Material Chemistry

Comprehensive range of shaped bricks, functional continuous casting parts, and monolithic castables.

$Magnesia Carbon & Basic Refractories$

Magnesia-Carbon & Basic Series

High-purity fused MgO + graphite with antioxidant additives for BOF, EAF slag lines, and steel ladles.

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Corundum & High-Alumina Series

Dense corundum, corundum-mullite, and low-creep high-alumina bricks for high-temp furnace zones.

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$Monolithic Refractories$

Monolithic Refractories

Eco-friendly waterless taphole clay, high-alumina castables, corundum-spinel mixes, and gunning repair mass.

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$Continuous Casting Refractories$

Continuous Casting Functional Parts

Al-Zr-C slide gate plates, submerged entry nozzles (SEN), stopper rods, and purging plugs for clean steel flow control.

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Turnkey Packages

Full Steelmaking Process Refractory Solutions

Click through our comprehensive refractory lining solutions engineered for each critical operational stage.

Ironmaking System

Blast furnace hearth carbon bricks, hot blast stove andalusite checkers, casthouse taphole clay.

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Core Steelmaking

BOF converter high-purity MgO-C linings, EBT taphole assemblies, and electric arc furnace (EAF) delta roofs.

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Secondary Refining

Steel ladle slag line MgO-C, bottom impact pads, corundum-spinel castables, and RH snorkel bricks.

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Auxiliaries & Maintenance

Insulating linings, hot repair mixes, filler sands and injection materials — plus full EPC turnkey delivery.

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Certifications & Honors

Certified, Awarded and Technically Audited

The documents international buyers ask for first — management-system certificates, national honors, patents and an in-house laboratory, all verifiable before you place an order.

**ISO 9001:2015** Quality Management System

**ISO 14001:2015** Environmental Management

**ISO 45001:2018** Occupational Health & Safety

**National High-Tech Enterprise** Recognised Refractory Innovator

**Green Factory** Cleaner Refractory Production

Honors

Recognised by Industry & Government

National High-Tech Enterprise
Green Factory — cleaner refractory manufacturing
90+ national patents granted
5+ industry standards co-authored

Certifications

Audited Management Systems

ISO 9001:2015 quality management system
ISO 14001:2015 environmental management
ISO 45001:2018 occupational health & safety
Certificate of Analysis (COA) issued per shipment

Technical Strength

In-House R&D & Testing

40-strong R&D team led by Prof. Shi Gan
Independent lab: chemical assay, CCS, RUL, hot MOR
Density & porosity tested to ASTM / ISO / YB-T
3 specialised production bases, one quality system

See Full Company Credentials → Request Certificate Copies

Global References

Proven Steel Mill Project References

Delivering documented campaign life increases and lower refractory consumption to heavy metallurgy clients across 60+ countries.

$Altos Hornos de México (AHMSA) — 150 t Torpedo Car Full Refractory Package - Zhengzhou XZK Refractory Group$

Mexico · Monclova

Altos Hornos de México (AHMSA) — 150 t Torpedo Car Full Refractory Package

Furnace: 150 t torpedo car — complete refractory supply

📈 Single-source package removed boundary failures; engineered throat shape extended torpedo car campaign

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$Saint-Gobain — Refractory Supply Partnership (France & Brazil) - Zhengzhou XZK Refractory Group$

France & Brazil

Saint-Gobain — Refractory Supply Partnership (France & Brazil)

Furnace: Refractory supply across furnace insulation and wear-face applications

📈 Shell temperature targets met across multiple sites with lining life held — energy gain not bought with campaign length

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$Colakoglu Metalurji — 180 t BOF Single-Strand Slab Caster Flow Control - Zhengzhou XZK Refractory Group$

Türkiye

Colakoglu Metalurji — 180 t BOF Single-Strand Slab Caster Flow Control

Furnace: 180 t BOF, single-strand slab caster — stoppers, SENs, shrouds & plates

📈 Grade-matched flow control cut mid-sequence interventions in exactly the grade blocks that previously caused them

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$JSW Steel — 180 t BOF Working Lining & 400 t Torpedo Car Lining - Zhengzhou XZK Refractory Group$

India

JSW Steel — 180 t BOF Working Lining & 400 t Torpedo Car Lining

Furnace: 180 t BOF converter + 400 t torpedo car

📈 Matched machined purging assembly removed a forcing position — campaign now set by the lining, not the plug

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$Tata Steel Kalinganagar — 5873 m³ BF Hot Blast Stove Insulation & Lining - Zhengzhou XZK Refractory Group$

India · Kalinganagar / KPO

Tata Steel Kalinganagar — 5873 m³ BF Hot Blast Stove Insulation & Lining

Furnace: 5873 m³ BF hot blast stove — dome, checkerwork & full insulation

📈 Density-graded insulation brought shell temperature inside design target; stove geometry held with no channel closure

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$Nippon Steel — Torpedo Ladle & BOF Working Lining Supply - Zhengzhou XZK Refractory Group$

Japan

Nippon Steel — Torpedo Ladle & BOF Working Lining Supply

Furnace: Torpedo ladle & BOF working linings

📈 Batch chemistry held campaign to campaign; frozen grade map made wear data cumulative instead of re-learned

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$JFE Steel — RH Degasser Snorkel & Ladle Flow Control Package - Zhengzhou XZK Refractory Group$

Japan

JFE Steel — RH Degasser Snorkel & Ladle Flow Control Package

Furnace: RH degasser snorkel & lower vessel + ladle slide gate system

📈 Chrome corundum extended snorkel interval until snorkel and lower vessel come due together; plate life matched to sequence length

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$Azovstal — 350 t BOF Lining with Ladle Shroud & SEN Flow Control - Zhengzhou XZK Refractory Group$

Ukraine · Mariupol

Azovstal — 350 t BOF Lining with Ladle Shroud & SEN Flow Control

Furnace: 350 t BOF, 2-strand slab caster — lining, shrouds & SEN

📈 Preheat-free shrouds and SENs removed a step from caster turnaround; grade-matched consumables cut mid-sequence interventions

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$ArcelorMittal Kryvyi Rih — 300 t BOF Full Working Lining & Bottom Purging - Zhengzhou XZK Refractory Group$

Ukraine · Kryvyi Rih

ArcelorMittal Kryvyi Rih — 300 t BOF Full Working Lining & Bottom Purging

Furnace: 300 t BOF — working lining, taphole & bottom purging

📈 Bottom purging assembly life aligned with campaign length — converter no longer forced down for the plug

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$MMK Magnitogorsk — No.10 BF Stack Lining & 375 t Ladle Full Set - Zhengzhou XZK Refractory Group$

Russia · Magnitogorsk

MMK Magnitogorsk — No.10 BF Stack Lining & 375 t Ladle Full Set

Furnace: No.10 BF (1800 m³) stack & hearth + 375 t steel ladle

📈 Consolidated BF + 375 t ladle supply removed grade-mismatch downtime; hearth isotherm held inside the cup

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$Baosteel Zhanjiang — No.3 Blast Furnace Hot Blast Stove Full Lining Package - Zhengzhou XZK Refractory Group$

China · Zhanjiang

Baosteel Zhanjiang — No.3 Blast Furnace Hot Blast Stove Full Lining Package

Furnace: No.3 BF hot blast stove — dome, combustion chamber & checkerwork

📈 Course-graded stove package cut material cost 15–25% while holding the design campaign life

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$Hyundai Steel Dangjin Works — 300 t BOF Zonal Lining & 320 t Torpedo Car Package - Zhengzhou XZK Refractory Group$

South Korea · Dangjin Works

Hyundai Steel Dangjin Works — 300 t BOF Zonal Lining & 320 t Torpedo Car Package

Furnace: 300 t BOF converter + 320 t torpedo car fleet

📈 Boundary groove eliminated — BOF campaign extended past 12,000 heats, reline date now schedulable

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View All 15 Project References

Quality & Traceability

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

100,000+ Metric Tons Annual Capacity

60+ Countries Export Footprint

6 Fully-Equipped Workshops

100% ISO 9001:2015 Certified

News & Insights

Refractory Know-How From the XZK Engineering Team

Technical guides, project deliveries and company updates for iron & steel plants.

$Be an Agent - Zhengzhou XZK Refractory Group$

9 月 15, 2026

Be an Agent

Join the XZK global pa…

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$Ceramic Cup and Microporous Carbon: Blast Furnace Hearth Bottom Design Notes - Zhengzhou XZK Refractory Group$

9 月 9, 2026

Ceramic Cup and Microporous Carbon: Blast Furnace Hearth Bottom Design Notes

Pore throat diameter, …

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$What to Send for a Zonal Lining Proposal — and What Comes Back in 48 Hours - Zhengzhou XZK Refractory Group$

9 月 9, 2026

What to Send for a Zonal Lining Proposal — and What Comes Back in 48 Hours

A free 48-hour zonal p…

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Plan Your Furnace Relining with XZK Technical Experts

Send us your furnace operating conditions, wear zone sketches, or CAD drawings. We will deliver a complete refractory package solution within 24 hours.

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