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The RTK‑AZS33 fused cast block is a refractory component designed to minimise contamination from molten glass, reducing the formation of stones, bubbles and exudation of the matrix glass. It is manufactured by Henan Reftech Industrial Co., Ltd. in Xinmi, Henan Province, China and carries the RTK‑AZS33 grade designation. The block’s composition and dense microstructure give it a strong resistance to glass ingress, making it suitable for demanding furnace environments.
Typical AZS bricks contain about 33 % alumina, 5 % zirconia and the remainder silica, giving a bulk density near 3.5 g/cm³ and a compressive strength of at least 200 MPa. The porosity is usually below 5 %, which contributes to low gas permeability and excellent thermal‑shock resistance of roughly 150 °C temperature differentials. These industry‑standard figures are recognised across glass‑melting and steel‑making refractory applications.
Common installations include the super‑structure of melting tanks, sidewalls, paving blocks and fore‑hearth sections of glass furnaces. Buyers such as glass container manufacturers and steel foundries source the blocks in bulk pallets, with packaging typically on wooden crates. Because the listing does not disclose minimum order quantities, lead‑times or Incoterms, interested importers should confirm those details directly with the supplier before placing an order.
| Grade | RTK‑AZS33 (supplier specified) |
| Alumina content | 33 % Al2O3 (typical) |
| Zirconia content | 5 % ZrO2 (typical) |
| Silica content | 62 % SiO2 (typical) |
| Bulk density | 3.5 g/cm³ (typical) |
| Compressive strength | ≥200 MPa (typical) |
| Porosity | ≤5 % (typical) |
| Thermal‑shock resistance | ΔT ≥ 150 °C (typical) |
| Standard block size | 1000 mm × 500 mm × 200 mm (typical) |
Henan Reftech Industrial Co., Ltd. is located at No.1 Jinghua Road, Xinmi, Henan Province, China (postal code 452385). The company holds a harbour‑level trust tier on the B2B platform, indicating that it has passed basic verification checks, although its response rate is currently recorded as 0 % and average response time is zero hours.
The supplier focuses on refractory products for high‑temperature industrial processes, with a catalogue that includes fused cast AZS blocks, bricks and related components. Its listing highlights the RTK‑AZS33 grade and notes performance benefits for glass‑melting applications, but it does not provide additional details such as certifications, production capacity or client references.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before placing an order, verify the exact chemical composition, grade designation and any test certificates that the supplier can supply. Request a mill‑test report that details alumina, zirconia and silica percentages, as well as density and compressive strength values. This information helps confirm that the block meets the performance requirements of your furnace design.
Discuss logistics early: clarify the preferred Incoterm (FOB, CIF or DDP), expected lead‑time from production to shipment, and the method of payment. Because the supplier’s response rate is currently zero, it is advisable to establish a clear line of communication through a verified contact and to obtain written confirmation of shipping schedules and payment milestones.
Arrange for third‑party inspection either before loading or at the destination port to verify dimensions, surface quality and absence of cracks. Request documentation such as a material safety data sheet, a refractory index certificate and a final inspection report. These steps reduce the risk of receiving non‑conforming material and support smooth customs clearance.
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When sourcing Fused Cast Azs Block for your business, securing the right balance of quality and cost is essential. Henan Reftech Industrial Co., Ltd., a supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $25000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Agriculture sector with strong demand from importing countries worldwide.
Importing Fused Cast Azs Block requires careful attention to shipping logistics, customs compliance, and secure payment terms. Henan Reftech Industrial Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Fused Cast Azs Block for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Agriculture category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Importing Fused Cast Azs Block requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Fused Cast Azs Block from Henan Reftech Industrial Co., Ltd. is $25000/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Henan Reftech Industrial Co., Ltd. through EximNext.
The supplier, Henan Reftech Industrial Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Fused Cast Azs Block. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Fused Cast Azs Block depends on the specific grade and form. Contact Henan Reftech Industrial Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Fused Cast Azs Block from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Henan Reftech Industrial Co., Ltd.. Ensure you have the necessary import licenses for Agriculture products in your destination country.
Open the Henan Reftech Industrial Co., Ltd. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Henan Reftech Industrial Co., Ltd. through EximNext.
Henan Reftech Industrial Co., Ltd. offers Fused Cast Azs Block with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Fused Cast Azs Block is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Henan Reftech Industrial Co., Ltd. through our platform.
Henan Reftech Industrial Co., Ltd. maintains international quality certifications. These ensure that the Fused Cast Azs Block meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Henan Reftech Industrial Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Henan Reftech Industrial Co., Ltd..
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