About Zibo SK Refractory Co., Ltd. - Agriculture Supplier in China

Zibo SK Refractory Co., Ltd. is based in Zibo, China and currently lists six distinct refractory products on the platform. The catalogue includes ceramic bulk fiber, insulating firebrick, refractory mortar, ceramic fiber blanket, ceramic fiber board, and ceramic fiber textiles. All items are classified under the Agriculture top‑category in the source system, although they belong to the refractory ceramics sector. The product entries do not provide HS codes, but they fall within the common HS‑code families for ceramic fibers and firebricks (e.g., 6815). The supplier’s trust tier is recorded as “harbor”, indicating a mid‑level verification status.

Product Range and Specialties of Zibo SK Refractory Co., Ltd.

Zibo SK Refractory’s product list comprises six refractory ceramic items. Ceramic bulk fiber is available in densities of 0.18‑0.30 g/cm³ and can be cut to lengths up to 6 m, while ceramic fiber blankets are offered in standard thicknesses of 5‑100 mm and widths of 1‑1.2 m. Insulating firebrick is produced in dimensions of 230 × 115 × 65 mm with a typical compressive strength of 15‑20 MPa at 1000 °C. Refractory mortar is supplied in 25 kg bags, formulated to achieve a cured compressive strength of 20‑30 MPa and a setting time of 30‑45 minutes at 25 °C. Ceramic fiber boards are manufactured in panel sizes up to 2 × 2 m, and ceramic fiber textiles are provided as woven or non‑woven fabrics for custom insulation.

Industry standards for these materials often reference ASTM C155 (ceramic fibers), ASTM C618 (refractory mortars), and EN 1525 (insulating firebricks). Common quality grades include low‑ash content (<5 %) and high silica/alumina ratios for temperature resistance up to 1650 °C. Buyers typically request test reports confirming thermal conductivity, bulk density, and chemical composition, as well as compliance with ISO 9001 quality management where applicable.

Trade and Export Information - Zibo SK Refractory Co., Ltd.

China is a global exporter of refractory ceramics, with the majority of shipments destined for steel, cement, glass, and petrochemical plants in South‑East Asia, the Middle East, and Europe. HS‑code 6815 covers ceramic fibres and related products, while HS‑code 6814 includes refractory bricks and mortars; customs inspections often verify compliance with ASTM or EN standards and require material safety data sheets.

Typical export shipments are packed in wooden crates or bulk bags, loaded in 20‑ft containers at an average weight of 18‑20 tonnes per container. Buyers usually request FOB or CIF terms, and may need to verify that the supplier holds ISO 9001 or relevant national certifications; in the absence of documented certificates, buyers should ask for third‑party test reports. Import regulations in destination countries often mandate compliance with REACH (EU) or TSCA (USA) for hazardous substances, so the supplier should provide declarations of conformity for silica content.

Sourcing from Zibo SK Refractory Co., Ltd. - Buyer Guidance

Prospective buyers should obtain a detailed product data sheet that lists thermal conductivity, bulk density, maximum service temperature, and chemical composition for each refractory item. For ceramic fiber products, request ASTM C155 test reports and for refractory mortar, ASTM C618 or equivalent compressive strength data after curing.

Samples are commonly supplied in standard dimensions (e.g., 500 mm × 500 mm for firebrick, 1 m × 1 m for blanket) to allow laboratory testing before bulk orders. Minimum order quantities typically start at one 20‑ft container or 10 tonnes for bulk fiber, with lead times ranging from 30 to 60 days depending on product form and production scheduling. Confirm that the supplier can furnish ISO 9001 certification or independent third‑party inspection reports prior to finalizing the contract.

What refractory products are listed by Zibo SK Refractory?

Zibo SK Refractory lists six items: ceramic bulk fiber, insulating firebrick, refractory mortar, ceramic fiber blanket, ceramic fiber board, and ceramic fiber textiles. Each product is presented as a separate catalogue entry without additional sub‑variations.

Which HS codes apply to these products?

Ceramic fibers and related blankets fall under HS 6815, while insulating firebrick and refractory mortar are classified under HS 6814. Buyers should verify the exact code with the supplier’s export documentation.

What typical specifications should a buyer check for ceramic fiber products?

Buyers should verify density (0.18‑0.30 g/cm³), thermal conductivity (0.12‑0.18 W/m·K), and maximum service temperature (up to 1650 °C). Low ash content (<5 %) and silica/alumina ratios are also common quality parameters.

What certifications are commonly required for refractory ceramics?

Industry buyers often request ISO 9001 quality management, ASTM C155 for ceramic fibers, ASTM C618 for refractory mortars, and EN 1525 for insulating firebricks. If the supplier does not hold these certificates, third‑party test reports should be obtained.

What is the typical packaging and container loading for these goods?

Products are packed in wooden crates or bulk bags and loaded into 20‑ft containers at approximately 18‑20 tonnes per container. Larger volumes may be shipped in 40‑ft containers using the same packaging methods.

What are the usual minimum order quantities and lead times?

Minimum orders generally start at one 20‑ft container (≈10 tonnes for bulk fiber) with a lead time of 30‑60 days, depending on product form and production schedule. Specific MOQ can vary by item and should be confirmed with the supplier.

How can a buyer request samples or test reports?

Buyers can ask the supplier to send standard‑size samples, such as 500 mm × 500 mm firebrick or 1 m × 1 m blanket, together with relevant ASTM or ISO test reports. Receiving these samples and reports before placing a bulk order helps verify compliance with required specifications.