+86-15527482889
Leave Your Message
-
CONTACT SENGKUN
-
CONTACT SENGKUN -
CONTACT SENGKUN
Strategic thermal engineering requirements across the industrial clusters of Marinha Grande, Aveiro, Sines, Setúbal, and Porto.
Portugal’s manufacturing base has undergone a substantial technological transformation over recent decades. With world-renowned concentrations of container and tableware glass production in Marinha Grande and Alcobaça, heavy ceramic tile and sanitaryware manufacturing across Aveiro and Leiria, steel recycling and foundry operations in Setúbal and Maia, and petrochemical refining at the Sines Industrial Complex, the operating parameters for high-temperature equipment have grown increasingly demanding.
As Portuguese industrial operators advance towards decarbonization goals and adopt oxygen-fuel combustion, hydrogen-enriched firing, and electric boosting, furnace refractory linings face severe chemical aggression, volatile alkali vapors, and mechanical wear. Standard fireclay or intermediate alumina refractory bricks can no longer survive the harsh thermo-chemical atmospheres generated in these upgraded Portuguese kilns.
High-purity Corundum Refractory Bricks (featuring alumina content ranging from 85% up to 99% Al2O3) deliver exceptional load-bearing strength at elevated temperatures (refractoriness under load > 1700°C), microscopic lattice stability, and superior resistance to molten slag penetration, making them the indispensable cornerstone of modern Portuguese industrial thermal infrastructure.
Direct logistical corridors serving mainland Portugal via the Port of Leixões (Porto) and Port of Sines, guaranteeing seamless maritime container transport with minimum turnaround times.
Micro-crystalline α-Al2O3 matrix provides impenetrable resistance against alkali vapors (Na2O, K2O), acidic fluxes, and molten borosilicate or soda-lime glass liquid.
Fused and tabular corundum grains engineered with optimized grain boundary sintering offer exceptionally low high-temperature creep (
Zhengzhou SK Refractory Co., Ltd. (SK) located in Xinmi, Zhengzhou China. For over twenty years, SK Refractories dedicated to delivering high-performance, reliable solutions that redefine durability and efficiency for our clients worldwide. Founded on the principles of innovation, quality, and sustainability, serving key sectors including steelmaking, cement production, non-ferrous metallurgy, glass manufacturing, and petrochemical processing.
SK Refractories’ quality is embedded in every aspect of our operations, from raw material sourcing to production and delivery. We partner with trusted suppliers to secure premium-grade raw materials, leveraging advanced manufacturing processes—such as automated pressing, and controlled sintering—to ensure consistency and reliability. Our quality management system is certified to ISO 9001, reflecting our dedication to maintaining the highest standards of excellence.
SK Refractories main refractory products for industry furance are zircon bricks, corundum brick, mullite bricks, sillimanite bricks, silica bricks, magnesia bricks, low porosity fireclay blocks, insulation bricks and etc. SK Refractories has the annual production capacity of 20000+ tons. With scientific management, advanced technology and equipment, and strict quality control process, SK Refractories can ensure the high quality of the refractory bricks for industry furnace.
Contact Our Engineering Team
Engineered refractory configurations designed to resolve specific thermal and chemical erosion challenges across Portuguese manufacturing hubs.
The Portuguese glass packaging and crystal tableware sector requires refractory materials capable of resisting molten batch attack and alkali vapor condensation. SK Corundum and Chrome Corundum bricks serve in doghouse corners, forehearth channels, burner blocks, and feeder expendables, preventing glass defect coloration and stone formation.
In high-speed ceramic roller kilns and tunnel kilns producing porcelain and sanitaryware, fused corundum-mullite bricks and sillimanite refractory supports provide superior creep resistance, high hot modulus of rupture, and zero sagging under heavy kiln furniture loads at 1350°C–1450°C.
In electric arc furnace (EAF) roofs, ladle working linings, and non-ferrous aluminum melting furnaces across central and northern Portugal, SK high-density corundum bricks prevent steel slag erosion, withstand mechanical scrap impact, and eliminate molten metal infiltration.
Alternative fuel firing in Portuguese cement plants causes intense chlorine and sulfur cycling. SK Magnesia-Alumina Spinel and high-alumina corundum composites deliver exceptional coating adhesion and resist severe alkali peeling in burning and transition zones.
Secondary reformers, gasifiers, and carbon black reactors require ultra-pure corundum bricks with low SiO2 and low Fe2O3 (
With Portugal’s strong focus on renewable biomass and municipal waste energy recovery, Silicon Carbide (SiC) and Chrome-Corundum linings prevent severe slag buildup and hot gas abrasion in combustion chambers and fluid beds.
Comprehensive physical and chemical performance standards meeting and exceeding European EN and ISO specifications.
| Property Parameter | High Purity Corundum Brick (SK-98) | Chrome Corundum Brick (SK-Cr20) | Corundum Mullite Brick (SK-CM75) | Fused Re-Sintered Brick (SK-FRC) |
|---|---|---|---|---|
| Al2O3 Content (%) | ≥ 98.5 | ≥ 75.0 | ≥ 75.0 - 85.0 | ≥ 90.0 |
| Cr2O3 Content (%) | — | 18.0 - 22.0 | — | — |
| Bulk Density (g/cm³) | ≥ 3.10 - 3.25 | ≥ 3.20 - 3.45 | ≥ 2.80 - 2.95 | ≥ 3.15 |
| Apparent Porosity (%) | ≤ 16.0 | ≤ 15.0 | ≤ 17.0 | ≤ 15.5 |
| Cold Crushing Strength (MPa) | ≥ 100 - 120 | ≥ 120 - 140 | ≥ 80 - 100 | ≥ 110 |
| Refractoriness Under Load (0.2MPa, °C) | ≥ 1700 | ≥ 1700 | ≥ 1650 | ≥ 1720 |
| Service Application in Portugal | Metallurgy, Reformers, High-Temp Kilns | Glass Forehearths, Slag Melters | Ceramic Roller Kilns, Support Piers | EAF Roofs, Glass Tank Burners |
SK Refractories is well known in domestic markets and abroad for the quality of refractory bricks. The refractory materials produced by SK Refractories have been exported to more than 35 countries such as America, Spain, Germany, Italy, Brazil, Belgium, India, Japan, Korea, etc. The main products include Silica Brick, low porosity fireclay blocks, Sillimanite Brick, Corundum Brick, Zircon Brick, Mullite Brick, Insulating Bricks, refractory castables and refractory mortar of related materials.
Every consignment dispatched to Portuguese industrial clients undergoes rigorous raw material spectrometer testing, cold crushing strength verification, dimensional laser checks, and strict seaworthy fumigated wooden pallet packing to ensure zero breakage upon arrival at Port of Leixões or Port of Sines.
Learn more our service
Our obligation is to supply high quality refractory materials and service to achieve long lifetime of high temperature furnaces. SK Refractories will always improve himself to provide better refractory products and service to the customers all over the world.
Explore our complete spectrum of electro-fused, sintered corundum, mullite, sillimanite, and basic refractory solutions available for direct export to Portugal.
High purity Al2O3 ≥98%, extreme refractoriness up to 1800°C for metallurgy and reformers.
View Details →
Enhanced slag corrosion and thermal shock resistance for Marinha Grande glass tanks.
View Details →
High temperature stability and dense structure for heavy ceramic and petrochemical kilns.
View Details →
Low thermal conductivity and high mechanical strength for Portuguese kiln backup linings.
View Details →
Superior thermal stability and load-bearing performance for hot blast stoves and glass feeders.
View Details →
High thermal conductivity, abrasion resistance, and non-wetting properties for incinerators.
View Details →
Engineered for cement rotary kiln burning and transition zones with superior alkali protection.
View Details →
Tailor-made burner blocks, orifice rings, skimmer blocks, and customized furnace masonry.
View Details →We sincerely welcome both new and existing international customers in Portugal and across Europe to cooperate with us in a friendly manner and work together to create a bright future! Request a competitive quote, technical datasheet, or custom kiln lining design today.
Request Quotation & Technical Proposal