About Gongyi Hongda Furnace Charge Co. Ltd - Construction Materials Supplier in China

Based in China, Gongyi Hongda Furnace Charge Co. Ltd lists twelve active products across construction materials, abrasives, bricks, cement and silica sand. The catalogue comprises refractory masses, castables and ramming compounds that fall under HS chapters 6903 (refractory products), 3816 (chemical products) and 2505 (silica). Products include Magnesia Ramming Refractory Mass, Corundum Dry Ramming Compound, Low Cement Castable and several high‑alumina and silicon‑carbide castables. Each entry specifies the primary material composition such as MgO ≥ 84 % or Al₂O₃ 60‑85 %. The supplier’s trust tier is listed as “harbor”, indicating a mid‑level verification status in trade platforms.

Product Range and Specialties of Gongyi Hongda Furnace Charge Co. Ltd

The supplier’s catalogue covers a spectrum of refractory products: magnesia ramming mass (MgO ≥ 84 %), corundum dry ramming compound (high‑Al₂O₃), low‑cement castables based on calcium aluminate cement, steel‑fiber reinforced castables, silicon‑carbide and mullite castables, as well as silica ramming refractory with 95‑99 % SiO₂ purity. In the refractory industry these grades are commonly benchmarked against standards such as ASTM C618 (for magnesia‑based materials), EN 12570 (high‑alumina castables) and ISO 13061 (silicon‑carbide refractories). Typical specifications include compressive strength of 30‑45 MPa after 24 h curing for magnesia and high‑alumina castables, SiC content of 30‑45 % in silicon‑carbide castables, and fiber content of 5‑10 % by weight in steel‑fiber variants. Particle size distributions are usually controlled between 0.1 mm and 5 mm to ensure proper flow and placement.

Trade and Export Information - Gongyi Hongda Furnace Charge Co. Ltd

China is one of the world’s largest exporters of refractory castables, supplying steel mills, glass furnaces and petrochemical plants in North America, Europe and the Middle East. The HS codes used by the supplier - 6903.20, 6903.90, 3816.00 and 2505.10 - correspond to the international customs classification for alumina‑based, silicon‑carbide and silica refractories. Buyers typically require certifications such as ISO 9001 quality management, ISO 14001 environmental management, and compliance with ASTM or EN testing standards. Common export logistics involve bulk packaging in 20 ft or 40 ft containers, with freight terms often quoted as FOB or CIF. Chinese exporters of refractory products also need to observe REACH registration for any hazardous additives and may provide conformity certificates for CE marking when destined for the EU market.

Sourcing from Gongyi Hongda Furnace Charge Co. Ltd - Buyer Guidance

When sourcing from this supplier, request a full material data sheet that lists chemical composition, MgO or Al₂O₃ percentages, binder type and any fiber reinforcement. Obtain test reports for compressive strength (ASTM C617), thermal shock resistance (EN 13823) and bulk density, and verify that the reported HS code matches the commercial invoice. Typical minimum orders are one metric ton or one full container, with lead times of 30‑45 days after purchase order confirmation. Samples of at least 5 kg are advisable for independent laboratory verification before committing to larger volumes.

What is the MgO content in the Magnesia Ramming Refractory Mass?

The product specification states MgO ≥ 84 % minimum. Buyers usually confirm this figure with an X‑ray fluorescence (XRF) analysis report.

Which HS code applies to the Corundum Dry Ramming Compound?

Corundum Dry Ramming Compound is classified under HS code 6903.20, which covers refractory products made of alumina and related materials.

What certifications should I request for the high‑alumina castables?

Typical certifications include ISO 9001 quality management, ISO 14001 environmental compliance, and test certificates to ASTM C618 or EN 12570. Ask the supplier to provide copies before finalizing the order.

How are the refractory castables packaged for export?

Export shipments are usually packed in bulk bags or wooden crates suitable for 20 ft or 40 ft containers. The packaging must protect the material from moisture and mechanical damage during transit.

What is the typical lead time for a full container order?

Lead times for Chinese refractory manufacturers range from 30 to 45 days after order confirmation, depending on production scheduling and required certifications.

Can I obtain a sample of the Silicon Carbide Castable before placing a larger order?

Yes, the supplier can provide a sample of at least 5 kg. The sample should be accompanied by a material test report covering SiC content, Al₂O₃ percentage and compressive strength.

What are the common quality tests for silica ramming refractory?

Silica ramming refractory is usually tested for SiO₂ purity (95‑99 %), bulk density, and thermal shock resistance according to ASTM C617. A certified laboratory report should be requested.