Tungsten cemented carbide balls are spherical products made from tungsten carbide (WC) powder as the primary component and cobalt (Co) or other metals as a binder, sintered using a powder metallurgy process. They offer high hardness, wear resistance, corrosion resistance, bending resistance, and high-temperature resistance, making them widely used in precision bearings, valve seals, abrasive media, instrumentation, sprayers, water pumps, oilfield equipment, and hardness testers.

Tungsten cemented carbide balls are powder metallurgy products made from a matrix of high-hardness, refractory tungsten carbide powder, with cobalt (Co), nickel (Ni), or molybdenum (Mo) as a binder, sintered in a vacuum furnace or hydrogen reduction furnace. Their hardness characteristics and key influencing factors are as follows:

The tolerance requirements for tungsten cemented carbide balls typically vary depending on the application, industry standards, and manufacturing process. The following are some common requirements and explanations for tungsten cemented carbide ball tolerances, based on international or industry standards (such as ISO, DIN, ANSI, etc.) and typical application scenarios:

Tungsten cemented carbide balls (typically made with a metal binder such as tungsten carbide and cobalt) are widely used in high-precision, demanding applications due to their exceptional hardness, wear resistance, corrosion resistance, and stability. Their dimensional accuracy is one of the core criteria for measuring their quality.

Tungsten carbide balls' core advantages are their high density (typically between 14.5-15.0 g/cm³, with a typical value of 14.9 g/cm³) and excellent weight characteristics. Their density, approximately twice that of steel balls, directly determines their weight distribution, wear resistance, and corrosion resistance. Specific characteristics and their impact are as follows:

Tungsten carbide balls, composed primarily of tungsten carbide and bonded with cobalt as a binder, are widely used in precision bearings, valves, and molds. Their high hardness and wear resistance are their core properties. Hardness reflects a material's ability to resist local deformation, with typical values ranging from 1500–2000 Vickers hardness (HV). The specific hardness is determined by the alloy grade (such as YG series tungsten-cobalt alloys or YT series titanium-cobalt alloys) and the sintering process. The following briefly describes hardness assessment from the perspectives of standards and test methods.

Tungsten carbide balls are spherical materials made primarily from tungsten carbide powder, a high-hardness refractory metal, combined with a binder and sintered using a powder metallurgy process. Their chemical composition can be summarized as follows:

The main components of cemented carbide balls are a highly hard and wear-resistant metal carbide (usually tungsten carbide WC) and a metal binder (usually cobalt Co). The structure can be understood as: hard tungsten carbide particles are encapsulated and bonded by the relatively soft metal cobalt, forming an extremely hard yet moderately tough composite material.

Tungsten carbide balls are manufactured using a powder metallurgy process, combining high-hardness refractory metal carbides as the hard phase and transition metals as the binder phase. Material selection should be centered around core performance requirements. The following is a detailed analysis:

As the name suggests, tungsten cemented carbide balls are primarily made of cemented carbide. Cemented carbide is not a single metal, but rather a composite material composed of high-hardness, high-melting-point metal carbides and a metal binder, manufactured through a powder metallurgy process. Its core composition can be summarized as a "two-phase structure":