Import Fused Cast Azs 33# Blocks — Buy in wholesale FOB from Supplier in China
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The fused cast AZS 33# block offered by Zhengzhou Smien Refractories Co., Ltd. is a refractory composed of aluminium oxide, zirconia and silica in a graded formulation known as AZS grade 33. The dense microstructure provides strong resistance to glass liquid erosion at temperatures commonly exceeding 1300 °C. According to the supplier, the block can be produced in various shapes such as feeder channel bricks, crown pieces and void‑free sidewall units. It is marketed for use in the superstructure, working pool side walls and paving areas of glass melting furnaces.
Typical AZS 33 formulations contain about 95 % Al2O3, 3 % ZrO2 and 2 % SiO2 (typical) and meet the standard refractory density of 3.0 - 3.5 g cm‑3. Industry standards call for porosity below 6 % and a compressive strength of at least 28 MPa (standard). The material’s thermal conductivity usually lies between 1.4 and 1.9 W m‑1 K‑1 (typical). These values ensure the block can withstand repeated thermal cycling without cracking.
Glass manufacturers, especially those producing high‑quality container glass, are the primary buyers of AZS 33# blocks because the material minimizes contamination of molten glass. Zhengzhou Smien typically ships the blocks in metric‑tonne batches, packed in reinforced crates suited to the chosen shape. Prospective buyers should confirm the preferred Incoterm, payment schedule and any required pre‑shipment testing directly with the supplier. As the public listing does not disclose a minimum order quantity, the exact MOQ must be verified during the quotation process.
| Material | Fused Cast Al2O3‑ZrO2‑SiO2 (AZS) |
| Grade | 33 |
| Typical Al2O3 content | 95 % (typical) |
| Typical ZrO2 content | 3 % (typical) |
| Typical SiO2 content | 2 % (typical) |
| Typical bulk density | 3.0 - 3.5 g cm‑3 (standard) |
| Typical porosity | ≤ 6 % (standard) |
| Typical compressive strength | ≥ 28 MPa (typical) |
| Typical thermal conductivity | 1.4 - 1.9 W m‑1 K‑1 (typical) |
| Common shapes | feeder channel bricks, crown pieces, void‑free sidewall units (standard) |
The company is located on Zhongzhou Avenue in the Guancheng District of Zhengzhou, Henan Province, China. It carries a harbor‑level trust tier, and its public response metrics show a 0 % response rate with an average response time of 0 hours. Zhengzhou Smien Refractories Co., Ltd. specialises in high‑temperature refractories, including fused cast AZS blocks and alumina‑based products. Its product range is aimed at glass furnace construction and related industrial applications.
The current listing emphasises the ability to produce AZS 33# blocks using electric‑furnace melting and casting, offering variants such as void‑free (WS), oriented cavity (QX) and normal filling (PT) forms. No details on annual output, certified quality systems or export licences are provided, so buyers should request those documents directly. Pricing, lead time and minimum order quantity are not disclosed, requiring direct communication to obtain complete trade terms.
Fused cast AZS 33 blocks are premium refractory blocks composed of aluminum oxide, zirconia, and silica, designed for glass furnace applications where corrosion resistance and thermal stability are critical. These AZS 33 blocks are widely used in the superstructure, working pool side walls, and paving areas of glass melting tanks, offering superior resistance to glass liquid erosion at high temperatures. As a key import-export commodity in the global refractory market, AZS blocks are traded in metric tons and subject to standard refractory material certifications for quality assurance in industrial furnace construction.
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Sourcing Fused Cast AZS 33# Blocks from Zhengzhou Smien Refractories Co., Ltd. - China Import Guide
Before finalising a purchase, importers should verify Zhengzhou Smien’s corporate registration in Henan and obtain copies of any quality management or environmental certificates the company holds. Request a recent mill test report that confirms the Al2O3, ZrO2 and SiO2 percentages as well as density and porosity values. A small sample can be inspected for micro‑structural integrity and dimensional accuracy prior to a full order.
Logistics for the AZS 33# blocks are usually arranged in bulk containers, with the product loaded in reinforced crates that accommodate the selected shape. Because the listing does not state a lead time, buyers should ask the supplier for an estimated production and dispatch schedule, which typically ranges from three to eight weeks for standard orders. Clarify the preferred Incoterm - such as FOB Zhengzhou or CIF Shanghai - and agree on payment terms, commonly a 30 % advance with the balance payable upon presentation of shipping documents.
Quality control often involves a third‑party inspection either at the factory or at the port of loading. Importers are advised to request a pre‑shipment inspection report covering dimensions, density, compressive strength and surface condition. Required documentation includes the mill test report, material safety data sheet and a certificate of conformity to the specified AZS grade. Keeping these documents on file eases customs clearance and supports future quality audits.
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30 suppliersBuy Fused Cast Azs 33# Blocks in Bulk — Verified Supplier in China
When sourcing Fused Cast Azs 33# Blocks for your business, securing the right balance of quality and cost is essential. Zhengzhou Smien Refractories Co., Ltd., a verified supplier based in China, offers this product with key specifications including AZS 33# (33% ZrO2 content), Al2O3 50-53%, ZrO2 32-34%, SiO2 12-15%, and Standard 400x115x75mm; custom sizes available per buyer specification. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1700/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 6902.90, making it a staple in the Abrasives sector with strong demand from importing countries worldwide.
Fused Cast Azs 33# Blocks Specifications, Trade Terms & Pricing
Importing Fused Cast Azs 33# Blocks requires careful attention to shipping logistics, customs compliance, and secure payment terms. Zhengzhou Smien Refractories Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 6902.90 in their destination country. 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 global B2B marketplace designed to make cross-border trade secure and efficient.
About Zhengzhou Smien Refractories Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Fused Cast Azs 33# Blocks has been verified on our platform. 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 verified manufacturers and exporters across 200+ countries. Explore similar products in the Abrasives category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Fused Cast Azs 33# Blocks — Shipping, Logistics & Customs
Importing Fused Cast Azs 33# Blocks 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 for HS Code 6902.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Fused Cast Azs 33# Blocks
What is the wholesale price of Fused Cast Azs 33# Blocks?
The current listed wholesale price for Fused Cast Azs 33# Blocks from Zhengzhou Smien Refractories Co., Ltd. is $1700/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 Zhengzhou Smien Refractories Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Fused Cast Azs 33# Blocks?
The supplier, Zhengzhou Smien Refractories Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Fused Cast Azs 33# Blocks. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Fused Cast Azs 33# Blocks?
For international shipping and customs clearance, Fused Cast Azs 33# Blocks is classified under HS Code 6902.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Fused Cast Azs 33# Blocks from China?
To import Fused Cast Azs 33# Blocks from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Zhengzhou Smien Refractories Co., Ltd.. Ensure you have the necessary import licenses for Abrasives products in your destination country.
Is Zhengzhou Smien Refractories Co., Ltd. a verified supplier?
Yes, Zhengzhou Smien Refractories Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Fused Cast Azs 33# Blocks?
The key specifications for Fused Cast Azs 33# Blocks supplied by Zhengzhou Smien Refractories Co., Ltd. include AZS 33# (33% ZrO2 content), Al2O3 50-53%, ZrO2 32-34%, SiO2 12-15%, and Standard 400x115x75mm; custom sizes available per buyer specification. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Fused Cast Azs 33# Blocks?
Zhengzhou Smien Refractories Co., Ltd. offers Fused Cast Azs 33# Blocks with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Fused Cast Azs 33# Blocks the most?
Fused Cast Azs 33# Blocks is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Zhengzhou Smien Refractories Co., Ltd. through our platform.
What certifications does this Fused Cast Azs 33# Blocks supplier hold?
Zhengzhou Smien Refractories Co., Ltd. maintains international quality certifications. These ensure that the Fused Cast Azs 33# Blocks meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Fused Cast Azs 33# Blocks on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Zhengzhou Smien Refractories Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Zhengzhou Smien Refractories Co., Ltd..
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