Information

Information
Hardness Analysis of Tungsten Cemented Carbide Balls 25

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: I. Hardness Range and Performance Advantages 1. Core Hardness Index The hardness of tungsten cemented carbide balls generally ranges from HRA 86-93. Some high-performance products (such as YG6x and YT15) can reach…

Information
Tolerance Requirements for Tungsten Cemented Carbide Balls 45

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: 1. Tolerance Grades for tungsten Cemented Carbide Balls The tolerances for tungsten cemented carbide balls are typically categorized into different grades according to international standards (such as ISO 3290 or AFBMA).…

Information
Dimensional Accuracy of Tungsten Cemented Carbide Balls 26

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. I. Key Indicators of Dimensional Accuracy Dimensional accuracy is not limited to diameter alone; it generally encompasses the following interrelated aspects: 1. Diameter Tolerance This is the most basic accuracy indicator, representing the…

Information
Density and Weight Characteristics of Tungsten Carbide Balls 44

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: I. Density Characteristics 1. Typical Density Range The density of tungsten carbide balls is typically between 14.5-15.0 g/cm3, with the specific value depending on the composition (e.g., the cobalt content…

Information
Hardness Standards and Test Methods for Tungsten Carbide Balls 50

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…

Information
Chemical Composition of Tungsten Carbide Balls 29

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: I. Core Components: High-Hardness Refractory Metal Carbides 1. Tungsten Carbide (WC) Content Range: Typically 75% to 97% of the total mass of the tungsten carbide ball, it is the primary component. Function: Provides extremely high hardness and wear resistance, forming the foundation for the high…

Information
Main Components and Structure of Tungsten Carbide Balls 43

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. I. Main Components of Tungsten Carbide Balls Tungsten carbide balls are not composed of a single metal, but rather a two-phase composite material. 1. Hard…

Information
Material Selection for Tungsten Carbide Balls 45

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: I. Hard Phase Material Selection: The Synergistic Effect of Tungsten Carbide (WC) and Titanium Carbide (TiC) 1. Tungsten Carbide (WC) Core Advantages: WC is the primary hard phase in tungsten carbide balls, boasting a microhardness of 2000-2500 HV and…

Information
Material Composition of Tungsten Cemented Carbide Balls 79

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”: 1. Hard Phase – Carbide This is the core component that provides ultra-high hardness and wear resistance, typically comprising 70% to 97% of the total composition. 1. Tungsten…

Information
Materials for Tungsten Cemented Carbide Balls 32

I. Main Materials for Tungsten Cemented Carbide Balls 1. Tungsten Carbide (WC): This is the primary component of tungsten cemented carbide balls. It possesses extremely high hardness and wear resistance, and serves as the core material providing the ball’s strength. 2. Binder (usually cobalt or nickel): Cobalt (Co): The most commonly used binder, used to bind tungsten carbide particles together and enhance the material’s toughness. The cobalt content typically ranges from 6% to 20%, depending on the application. Nickel (Ni):…

1 … 9 10 11 12 13 … 391