About Sichuan Burray Cemented Carbide Co., Ltd. - Tungsten Products Supplier in China

Sichuan Burray Cemented Carbide Co., Ltd. is located in China and lists 31 active products across tungsten carbide and related hard material categories. The catalogue includes milling cutters, die and mould components, sealing rings, bushing sleeves, and indexable inserts, each linked to HS code families such as 8207, 8208, 8209, 8480, 8483, 8484, 8101, 8103 and 6804. Materials are described as tungsten carbide (WC) with cobalt binders, grades YG8, YG15, and tungsten‑heavy alloys with purity 95‑99.95 %. The product set also contains silicon carbide seal rings and various PVD‑coated carbide inserts. The supplier’s trust tier is listed as “harbor” in the source data.

The listed items cover tooling and instrument applications, bearing components, and industrial machinery parts. Products such as the OME Tungsten Carbide Milling Cutter Mould (HS 8208.90) and the Tungsten Carbide Metal Stamp Die (HS 8207.19) illustrate the focus on precision‑cutting and stamping solutions. Additional offerings include anti‑friction metal moulds, magnetic material moulds, and a range of indexable inserts identified by standard CNC designations (CNMG, TNMG, etc.). All items are manufactured from cemented carbide or silicon carbide and are intended for high‑wear, high‑temperature environments.

Product Range and Specialties of Sichuan Burray Cemented Carbide Co., Ltd.

From the catalogue, Sichuan Burray offers milling cutter moulds (HS 8208), die‑press tablets (HS 8209), metal stamp dies (HS 8480.41), sealing rings (HS 8484.20), bushing sleeves (HS 8103, 8483), and a full line of indexable carbide inserts (HS 8207, 8208.31). In the tungsten‑carbide industry, common grades include YG8 (≈92 % WC/8 % Co), YG15 (≈85 % WC/15 % Co), and YG6, each measured by grain size (typically 0.5 µm to 5 µm) and hardness between 1500 - 2100 HV. Silicon carbide seal rings are usually supplied to ASTM C711 specifications with porosity below 2 % and bulk density around 3.2 g/cm³. Indexable inserts follow ISO 13399 geometry and are often coated with TiAlN or TiN to achieve surface hardness >3000 HV and a coating thickness of 2 - 5 µm.

Trade and Export Information - Sichuan Burray Cemented Carbide Co., Ltd.

China is a major exporter of cemented carbide tooling, supplying automotive, aerospace, and general machining sectors in Europe, North America, and Southeast Asia. HS chapters 82 (tools, dies and moulds) and 84 (machinery) dominate shipment statistics, with typical Incoterms of FOB Shanghai or CIF Hamburg. Buyers usually require ISO 9001 quality management certification, ISO 14001 environmental compliance, and product‑specific test reports such as ASTM B775 for cemented carbide hardness and grain size distribution. Packaging for 20‑ft or 40‑ft containers often involves wooden crates with internal dunnage, moisture‑proof liners for silicon carbide parts, and compliance with IMDG for any coated inserts. Chinese exporters of tungsten‑carbide components commonly work with freight forwarders experienced in handling heavy, high‑value items, ensuring weight limits per container (up to 28 t) are respected.

Sourcing from Sichuan Burray Cemented Carbide Co., Ltd. - Buyer Guidance

Importers should request a mill‑test report showing WC percentage, cobalt content, grain size, and Rockwell hardness for each grade. For coated inserts, a coating analysis (e.g., X‑ray fluorescence) confirming TiAlN/TiN layer thickness and adhesion (ASTM B571) is standard practice. Verify that the supplier can provide ISO 9001 certification and, where required by the destination market, CE marking or ASTM compliance documentation. Clarify minimum order quantities, which for standard inserts often start at 5 000 pieces, and confirm lead times that typically range from 30 to 45 days for bulk production. Ask about packaging options - individual inserts may be supplied in anti‑static bags, while larger bushing or die components are crated with protective padding.

What material grades are available for the tungsten carbide milling cutter moulds?

The milling cutter moulds are supplied in WC‑Co grades YG8, YG15 and YG6, with WC content ranging from 85 % to 92 % and cobalt binder between 6 % and 15 %, matching the specifications commonly required for high‑speed steel replacement.

Which certifications should a buyer request for the tungsten‑heavy alloy sealing rings?

Buyers should ask for ISO 9001 quality management certification, a material test report confirming W purity of 95‑99.95 % as stated, and compliance with ASTM C711 for silicon carbide‑based seals if applicable.

How are the indexable carbide inserts identified and what standards apply?

Inserts are labeled with ISO 13399 designations such as CNMG, TNMG, and CCMT. They are typically coated with TiAlN/TiN via PVD, and the coating thickness and composition should be verified against ISO 2082.

What are the typical packaging and shipping methods for the bushing sleeves?

Bushing sleeves (HS 8103/8483) are usually packed in wooden crates with internal foam inserts, wrapped in moisture‑resistant film, and shipped in 20‑ft or 40‑ft containers under FOB terms.

What documentation is needed for customs clearance of HS 8207‑90 metal‑stamp dies?

Required documents include a commercial invoice, packing list, certificate of origin, and a product test report showing WC‑Co composition and hardness (≥1500 HV). If the destination country requires it, a CE declaration may also be needed.

Are sample pieces available for the silicon carbide seal rings?

The supplier can provide limited sample quantities of the sintered SiC seal rings (HS 6804.22) upon request, typically packaged in anti‑static bags and shipped as air freight.

What is the usual lead time and MOQ for bulk orders of tungsten carbide bearing bushings?

Bulk orders of bearing bushings (HS 8483.30) generally have a minimum order of 1 tonne and a lead time of 30 - 45 days from order confirmation, depending on the grade and machining tolerances.