Import 500mm Graphite Electrode — Buy in wholesale FOB from Supplier in China

The 500mm graphite electrode is a large-diameter consumable used in electric arc furnaces for steelmaking and ferroalloy production. This electrode measures 500mm in nominal diameter and is manufactured from petroleum coke and needle coke with coal tar pitch binder, materials specified by Hebei Ben Hong New Material Technology Co., Ltd. The production process involves calcination, ingredient blending, kneading, moulding, baking, and high-temperature graphitisation, followed by precision machining to final dimensions. The resulting product offers low electrical resistivity, uniform and compact structure, and the thermal shock resistance demanded by intensive arc furnace operations.

Petroleum coke provides the carbonaceous base, while needle coke contributes the anisotropic structure that enhances thermal expansion resistance and current-carrying capacity. Coal tar pitch serves as the binder, carbonising during baking to lock the aggregate into a cohesive matrix. Standard grades for electrodes of this diameter include regular power (RP), high power (HP), and ultra-high power (UHP), each distinguished by raw material selection, graphitisation temperature, and final resistivity values. Typical bulk density for HP and UHP grades in this diameter range falls between 1.63 and 1.72 g per cubic centimetre, though buyers should confirm the grade offered by this supplier.

Steel mills and alloy foundries operating EAFs with shell diameters of 6 to 10 metres represent the primary buyers, as the 500mm diameter supports current loads of 50,000 to 80,000 amperes in ultra-high power applications. The electrode is consumed through oxidation at the tip and sidewall, plus mechanical breakage during joint-making, so consistent diameter tolerance and thread integrity are critical to furnace productivity. Packaging is typically wooden pallets with steel strapping to prevent transit damage. Importers should verify the specific grade, exact resistivity, and thread specification (4 threads per inch or 3 threads per inch nipple) directly with Hebei Ben Hong New Material Technology Co., Ltd before finalising orders.

Hebei Ben Hong New Material Technology Co., Ltd is located in Shijiazhuang, Hebei Province, China, with its registered address at Room B2506, Huahai Global Plaza in Xinhua District. The company operates from a commercial office setting rather than a disclosed production facility, which is common for trading entities or technology-focused suppliers in the region. Its trust tier is classified as harbour, and the response rate stands at 0.00% with an average response time of zero hours recorded. These signals suggest limited or no recent engagement through the platform's inquiry system, so buyers should expect to initiate contact directly and allow time for response.

The company's product focus centres on graphite electrodes for electric arc furnace applications, with explicit material sourcing from petroleum coke, needle coke, and coal tar pitch. The listing provides a custom specification outlining manufacturing stages from calcination through machining, but it does not state annual production capacity, number of production lines, in-house versus outsourced manufacturing, or specific furnace sizes served. No certifications such as ISO 9001, environmental management, or product-specific standards are mentioned. Buyers are advised to request a company profile, factory audit report, or reference list to assess production capability and quality management before committing to volume orders.