About Zhuzhou Oc Precision Alloy Co. Ltd. - Tungsten Products Supplier in China

Zhuzhou Oc Precision Alloy Co. Ltd. is based in China and currently lists ten active products in its catalogue. The company focuses on tungsten products and welding & wire mesh machinery, as reflected in its top categories. Its product list includes items such as a Tungsten Carbide Tile Cutter Wheel (HS 6804.22), Customized Special Tools (HS 8207.90), and a Tungsten Carbide Round Valve Stem (HS 8101.94). Each entry specifies the material as a tungsten carbide composite, generally WC‑Co cermet, with grades indicated for certain tools. The catalogue also contains products without an HS code, such as a Vacuum Welding Press Die for brick production.

Product Range and Specialties of Zhuzhou Oc Precision Alloy Co. Ltd.

The current catalogue comprises ten tungsten carbide items, each identified with an HS code and material composition. Products include a tile cutter wheel (HS 6804.22) made from WC‑Co cermet, customized special tools (HS 8207.90) offered in grades K10, K20, P30, M40, and hard alloy shims for SNMA/SNMG inserts (HS 8202.39) using YG8/YG6 grades. Additional entries are a carbide straightening roller (HS 8101.99), anti‑seismic milling holder (HS 8207.13), customized carbide gripper inserts (HS 8209.00), crushing knives (HS 8202.39), injection moulding wear parts (HS 8209.00), and a round valve stem (HS 8101.94). The vacuum welding press die is listed without an HS code but is described as a carbide component for brick production. Materials are consistently described as tungsten carbide bound with cobalt, with WC percentages ranging from 90 % to 94 %.

Trade and Export Information - Zhuzhou Oc Precision Alloy Co. Ltd.

China is one of the world’s largest exporters of tungsten carbide components, and Zhuzhou Oc Precision Alloy’s product range aligns with global demand from automotive, aerospace, and precision‑machining sectors. The HS 6804 family for ceramic cutting wheels, HS 8202 for hard alloy shims and knives, HS 8207 for special tools and presses, HS 8101 for other carbide articles, and HS 8209 for inserts are routinely cleared through customs in Europe, North America, and Southeast Asia. Importers in Germany, the United States, Japan, and South Korea frequently require conformity to REACH and RoHS directives for cobalt‑containing alloys, as well as test reports confirming WC percentage and hardness. Typical Incoterms used by Chinese carbide exporters are FOB Shanghai or CIF major ports, with shipments consolidated in 20‑foot or 40‑foot containers depending on volume.

Regulatory checks often involve laboratory analysis under ASTM B777 (density) and ASTM B567 (hardness) standards, and buyers may ask for certificates of conformity to ISO 9001 or specific industry standards such as ISO 13399 for tool data representation. Packaging conventions include double‑wall wooden crates with internal cushioning and moisture‑proof liners, allowing safe transport of delicate wheels and precision inserts. Export documentation generally includes a commercial invoice, packing list, certificate of origin, and, when required, a material safety data sheet (MSDS) for cobalt‑bearing products. The supplier’s target markets are not listed, so buyers should confirm the intended destination country’s tariff rates for the relevant HS codes.

Sourcing from Zhuzhou Oc Precision Alloy Co. Ltd. - Buyer Guidance

When sourcing from Zhuzhou Oc Precision Alloy, buyers should request a recent material test report that details WC weight percent, cobalt binder content, grain size, and measured hardness (HV). In addition, confirming the supplier’s ISO 9001 certification or equivalent quality‑management system is advisable, as most importers of tungsten carbide require documented quality control. For custom‑grade tools, specify the exact grade (e.g., K10, YG8) and tolerance requirements in the purchase order, and ask for a dimensional drawing or CAD file if applicable.

Samples of the cutting wheel or insert can be requested before full‑scale production to verify surface finish and wear resistance. Verify that the packaging meets moisture‑control standards and that the shipment will be labeled with the correct HS code and country of origin for customs clearance. Finally, ensure that the supplier can provide REACH‑compliant MSDS and, if needed, a declaration of conformity with RoHS for cobalt content.

What tungsten carbide grades are available in the catalogue?

The catalogue lists grades K10, K20, P30, M40 for customized special tools and YG8, YG6, YG15 for hard alloy shims, knives and wear parts. These grades correspond to cobalt binder contents ranging from about 6 % to 15 % and WC percentages between 90 % and 94 %.

How can I obtain a material test report for a specific product?

Request a recent test report from the supplier that includes WC weight percent, cobalt binder content, grain size distribution, and measured Vickers hardness (typically 1500 - 2000 HV for the listed grades. The report should be signed by an accredited laboratory.

What certifications should I verify before placing an order?

Buyers normally ask for ISO 9001 quality‑management certification and, where applicable, ISO 14001 environmental certification. For tungsten carbide tools, compliance with ASTM B544 (cemented carbides) or EN 12437 (cutting wheels) is also commonly required.

Which packaging and shipping methods are typical for these carbide components?

The products are usually packed in sealed wooden crates or bulk pallets with moisture‑proof liners to protect the cobalt binder from oxidation. Shipments are commonly consolidated in 20‑ft or 40‑ft containers and shipped under FOB Shanghai or CIF terms.

What are the common applications for the Tungsten Carbide Tile Cutter Wheel?

Tile cutter wheels are used in ceramic and stone cutting, glass shaping, and precision machining where high wear resistance and a fine cut are required. The wheel’s WC‑Co composition provides hardness above 1500 HV and maintains dimensional stability under high speeds.

Is there a minimum order quantity (MOQ) for customized carbide inserts?

MOQs vary by product shape and grade, but suppliers typically require a batch of at least 100 units or a weight equivalent of 5 kg for customized inserts. The exact MOQ should be confirmed in the purchase inquiry.

What lead time should I expect for a custom tungsten carbide tool?

Lead times for custom‑grade tools generally range from 25 to 45 days after final design approval and receipt of a down‑payment, depending on the complexity of the geometry and the required heat‑treatment cycle.