Magnesia bricks are high-performance refractory materials with excellent alkaline slag resistance and high-temperature stability (1600℃-1800℃), widely used in steel, cement, metallurgy, and glass industries. We specialize in supplying high-quality magnesia bricks with flexible specifications, competitive pricing, and global logistics support — this guide covers all details for bulk buyers and project procurement.
As a trusted magnesia brick supplier, we prioritize product consistency and customer-centric supply terms. Supplied magnesia brick types include ordinary magnesia bricks, high-purity magnesia bricks, and magnesia-alumina spinel bricks; minimum order quantity (MOQ) 500 pieces, bulk discounts available, 7-15 days global delivery. Whether you’re sourcing for steelmaking furnaces, cement kilns, or non-ferrous smelting equipment, our tailored solutions meet industrial-grade performance requirements while optimizing procurement costs.
We offer three core types of magnesia bricks, each engineered to match specific industrial conditions, with standard sizes and custom options to fit diverse equipment needs.
Our ordinary magnesia brick is a cost-effective solution for medium-heat and medium-corrosion environments, with core parameters that balance performance and affordability: MgO content ≥90%, maximum service temperature 1600℃-1700℃, compressive strength ≥70MPa, apparent porosity ≤18%, and slag erosion rate ≤0.2mm/h. Standard sizes include 230×114×65mm, 200×100×50mm, and 150×150×75mm — the most widely used dimensions in general industrial furnaces. For custom equipment, we support CAD drawing-based customization (minimum order 1000 pieces) to ensure perfect fit. This brick excels in scenarios where extreme high-temperature resistance is not required but alkaline slag resistance and structural stability are essential, making it a popular choice for small to medium industrial projects.
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For harsh industrial environments demanding ultra-high performance, we supply high-purity magnesia brick with exceptional temperature resistance and corrosion resistance. Core parameters include MgO content ≥95% (up to 98% for premium grades), maximum service temperature 1700℃-1800℃, compressive strength ≥85MPa, apparent porosity ≤15%, and slag erosion rate ≤0.12mm/h. Standard sizes are 230×114×65mm, 230×114×76mm, and 250×125×65mm, while curved and wedge-shaped options are available for furnace linings and irregular equipment profiles. The high MgO purity forms a dense, corrosion-resistant matrix, making this brick ideal for steel converters, blast furnace hearth zones, and other high-heat, high-slag-intensity applications.
Our magnesia-alumina spinel brick combines the advantages of magnesia and alumina, balancing thermal shock stability and slag resistance for temperature-fluctuation scenarios. Key parameters: MgO content 15-25% + Al₂O₃ content 70-80%, maximum service temperature 1650℃-1750℃, thermal shock cycles ≥35 times (1100℃→20℃), and compressive strength ≥80MPa. Standard sizes include 230×114×65mm and 200×100×50mm, with custom sizes available for special equipment like cement rotary kilns and glass melting furnace regenerators. The spinel crystal structure reduces thermal expansion mismatch, preventing cracking from rapid heating and cooling, making it a reliable choice for intermittent or batch-operated industrial equipment.
We offer transparent, competitive pricing and flexible supply terms to meet bulk procurement needs, with tiered discounts and global logistics support to streamline your purchasing process.
Our pricing is based on product type and order volume, with no hidden fees: ordinary magnesia brick ranges from $4.0-$5.5 per piece; high-purity magnesia brick (95% MgO) is $6.5-$8.0 per piece, while the 98% MgO premium grade is $8.5-$10.0 per piece; magnesia-alumina spinel brick is $8.0-$10.5 per piece. All prices include standard packaging, with additional costs only for custom packaging or urgent delivery requests.
The minimum order quantity (MOQ) is 500 pieces for standard sizes and 1000 pieces for custom sizes. We reward bulk purchases with generous discounts: orders ≥1000 pieces receive a 10% discount, orders ≥5000 pieces get 15% off, and orders ≥10,000 pieces qualify for a 20% discount plus free shipping to major global ports. Samples are available for $50 per piece, with the sample fee fully refundable when placing a bulk order of ≥1000 pieces — allowing you to verify quality before large-scale procurement.
To ensure product integrity during transportation, standard packaging includes 200 pieces per pack (moisture-proof plastic bag + wooden pallet) to prevent humidity damage and physical impact. For sea shipping or long-distance transportation, we offer custom waterproof and shock-proof packaging upon request. We provide global supply to major ports including Shanghai, Ningbo, Rotterdam, Houston, and Dubai. Delivery time is 7-15 days for bulk orders of standard sizes, 15-25 days for custom size orders, and 3-5 days for sample orders via express delivery. Free shipping is available for orders ≥10,000 pieces to major ports in Asia, Europe, and North America; shipping costs for other regions are quoted based on destination and order volume.
Our magnesia bricks are tailored to diverse industrial sectors, leveraging their high-temperature resistance and corrosion resistance to meet sector-specific challenges.
The steel industry is the largest consumer of our supplied magnesia brick, as its excellent alkaline slag resistance and high-temperature stability perfectly match steelmaking equipment conditions. It is widely used in blast furnace linings, steel converters, ladles, and electric arc furnace (EAF) slag lines — critical zones exposed to molten iron, slag erosion, and continuous high heat (1500℃-1700℃). A global steel mill reported a 30% extension in furnace lining service life after switching to our high-purity magnesia brick, reducing maintenance downtime and replacement costs.
Cement rotary kilns operate at 1400℃-1600℃, with alkaline clinker and high-temperature gas scouring causing severe refractory wear. Our supplied magnesia brick resists these challenges, making it ideal for cement rotary kiln burning zones, tertiary air ducts, and lime kiln linings. The brick’s low porosity and strong corrosion resistance prevent clinker penetration, extending kiln service life by 25-40% compared to conventional refractories. A Southeast Asian cement plant using our magnesia-alumina spinel brick reduced refractory replacement frequency from twice a year to once every 18 months.
Non-ferrous smelting (copper, aluminum, nickel) involves molten metal corrosion and high-temperature operation (1600℃-1750℃), demanding refractories with robust chemical stability. Our high-purity magnesia brick and magnesia-alumina spinel brick are used in copper/aluminum smelting furnaces, holding pots, and nickel refining equipment — resisting molten metal wettability and slag erosion. A South American copper smelter reported a 40% reduction in refractory consumption after adopting our products.
In the glass industry, our magnesia brick is used in glass melting furnace regenerators, where low contamination and high-temperature resistance are critical to avoiding glass defects. It also finds applications in waste incinerator high-temperature zones and industrial boilers, where it withstands corrosive combustion byproducts and continuous heat. The brick’s non-toxic, stable chemical composition ensures compliance with environmental and product quality standards.
We’ve streamlined the procurement process to ensure efficiency and transparency, supporting bulk buyers and project teams with quick responses and tailored services.
- Inquiry: Provide details including magnesia brick type, size (standard or custom), quantity, destination port, and delivery time requirements via email or WhatsApp.
- Quotation: Our sales team will send a customized quote within 24 hours, including unit price, total cost, discount eligibility, and logistics details.
- Sample Confirmation (optional): Order samples to test performance — the $50 sample fee is refundable when placing a bulk order of ≥1000 pieces.
- Order Placement: Confirm the quote, sign the supply contract, and pay a 30% deposit to initiate production.
- Production & Delivery: We provide regular production updates, and once completed, arrange shipping and share the tracking number.
- Final Payment & After-Sales: Pay the balance upon receiving the goods; our technical team offers free consultation on installation, storage, and maintenance to maximize product service life.
To get a customized quotation for supplied magnesia bricks, confirm supply capacity, or discuss custom specifications, contact our sales team directly via email/WhatsApp — we respond to all inquiries within 24 hours. We also offer value-added services including free technical guidance, custom packaging design for long-distance transportation, and on-site support for large-scale projects.
As a reliable partner for industrial refractory supply, we are committed to delivering high-quality magnesia bricks that meet your performance needs and procurement goals. Whether you’re upgrading existing equipment or building new facilities, our flexible supply terms and global logistics network ensure a seamless purchasing experience.
