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Tungsten Carbide Rod from Zhuzhou Jinxin

Publication date:

2026-05-29

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Cemented carbide round bars, also known as tungsten steel round bars or tungsten steel bars, are rod-shaped materials manufactured through powder metallurgy processes using tungsten carbide as the matrix and binders such as cobalt and nickel. This material features high hardness (HRA 86.5–92.5), excellent wear resistance, and high-temperature stability (maintaining performance at 1000°C). The production process includes steps such as powder preparation, wet grinding, mixing, cold isostatic pressing, and vacuum sintering at 1400–1500°C. Extrusion has become the primary method for forming cemented carbide rods. The product diameter ranges from Φ0.3 to 60 mm, with lengths under 400 mm. The raw materials consist of ultrafine tungsten carbide (particle size 0.3–2.0 μm) and cobalt powder, formed using a low-pressure sintering furnace imported from Germany and vacuum high-temperature, high-pressure technology. The product range includes various grades such as YG6, YG8, K10–K50, YG10X, and YG15, corresponding to different machining applications (hardwood, cast iron, stainless steel, etc.).

Tungsten carbide rod used in the manufacture of CNC cutting tools, molds, precision wear-resistant parts, electronic micro-drills, and automotive-specific cutting tools. Extruded vanadium carbide cemented carbide rods for PCB micro-drilling can be used to process PCBs for smart vehicles and 5G/6G communication systems.

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