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High-carbon steel balls are spherical products made from carbon steels with a carbon content ranging from 0.60% to 1.70%. Their mechanical properties differ significantly from those of low-carbon steel balls, with the defining characteristics being “high hardness and excellent wear resistance.”
AUSI 1010/1015 low-carbon steel
Low-carbon steel balls are spherical products made from carbon steel with a carbon content ranging from 0.0218% to 0.25%. They exhibit good toughness, excellent weldability, easy machinability, and low cost.
Bearing steel balls are used in high-speed, low-noise bearings, as well as in bicycles, motorcycles, automobiles, slide rails, universal joints, luggage, and the electronics industry; they can also be employed for grinding other media.
Chromium steel balls are used in high-speed, low-noise bearings, as well as in bicycles, motorcycles, automobiles, slide rails, universal joints, luggage, and the electronics industry; they can also be employed for grinding other media.
304 stainless steel balls are among the most widely used types of steel balls on the market, suitable for applications in medical devices, the chemical industry, aerospace, and plastic‑metal hardware—such as perfume bottles, sprayers, valves, nail polish containers, electric motors, switches, electric irons, washing machines, refrigerators, air conditioners, pharmaceuticals, automotive parts, bearings, precision instruments, and baby bottles.
316 stainless steel is primarily used in medical devices, food-processing machinery, cosmetic components, body jewelry, and instrumentation. 316 stainless steel balls are a high‑performance product, typically employed in specialized industries such as medical equipment, chemical processing, and aerospace—applications include perfume bottles, atomizers, valves, nail polish containers, body jewelry, and mobile phone circuit boards.
As a representative of martensitic stainless steels, 420 stainless steel balls exhibit high hardness, excellent wear resistance, and moderate toughness. After heat treatment (quenching and tempering), they also achieve superior corrosion resistance and polishability. With favorable machinability, they are well suited for manufacturing components that endure heavy loads and require outstanding wear resistance.
440C steel balls are spherical components manufactured from high-carbon, high-chromium martensitic stainless steel. Their distinctive characteristics stem entirely from the intrinsic properties of 440C steel, while their spherical geometry—suited to applications such as bearings, grinding, and precision transmission—further enhances three key advantages: hardness, wear resistance, and corrosion resistance.
The microstructure is martensitic, and the manufacturing process is demanding. Few domestic manufacturers are capable of producing stainless steel 440C, which is why companies that do so are often regarded as specialists in this material. The heat‑treatment process is complex, prone to cracking, and requires high precision. As a result, 440C is one of the hardest stainless‑steel ball grades, with a Rockwell hardness (HRC) of ≥58. Its hardness is comparable to that of bearing steel balls, yet it offers superior resistance to rust and corrosion.
Stainless steel balls are used in a wide range of hardware industries, as well as in crafts and plastic products, such as lighting fixtures, switches, motorcycle parts, luggage, bearings, and die-cast components.
A brass ball is a spherical component made from an alloy of copper and zinc, characterized by excellent electrical and thermal conductivity. Its density typically ranges around 8.4–8.5 g/cm³, and it exhibits moderate strength and wear resistance, though these properties are lower than those of materials such as stainless steel. Brass also boasts good machinability; being relatively soft, it lends itself readily to processes like casting, forging, and machining.
A brass ball is a spherical component made from an alloy of copper and zinc, characterized by excellent electrical and thermal conductivity. Its density typically ranges around 8.4–8.5 g/cm³, and it exhibits moderate strength and wear resistance, though these properties are lower than those of materials such as stainless steel. Brass also boasts good machinability; being relatively soft, it lends itself readily to processes like casting, forging, and machining.
The core material of glass spheres is glass, primarily composed of silica as the base ingredient, with sodium carbonate added to lower the melting point and calcium carbonate to enhance stability. A small amount of colorants—such as metal oxides like iron, cobalt, or chromium—are sometimes incorporated to produce hues like red, blue, or green. Glass spheres exhibit excellent light transmission, a brittle texture (prone to shattering upon impact), moderate hardness, low cost, and no specialized functional properties.
Slingshot carbon steel balls G1000 6mm
EN - DIN standard steel grades: 1.413, 1.4318, 1.4307, 1.4306, 1.4311, 1.4301, 1.4948, 1.4303, 1.4541, 1.4878, 1.4404, 1.4435, 1.4401
Steel balls with a hardened surface and low core hardness; surface hardness; poor resistance to corrosive attack.
Plastic balls of various specifications
The acrylic resin is a colorless, cylindrical granule with a smooth surface; the particle size ranges from 2 mm to 5 mm in any direction, and it contains no mechanical impurities. The powder is an off-white, free of agglomerates;合格品 may exhibit a slight yellowish tint. Polypropylene resin is non‑toxic, with a density of 0.90–0.91 g/cm³, making it one of the lightest among general‑purpose plastics. It exhibits excellent mechanical and heat‑resistance properties, with a service temperature range of –30°C to 140°C. Additionally, it boasts superior electrical insulation and chemical stability, virtually non‑hygroscopic, and chemically inert when exposed to most chemicals. However, it is corrosive when in contact with fuming sulfuric acid, fuming nitric acid, chromic acid solutions, halogens, benzene, carbon tetrachloride, chloroform, and similar substances.
Zirconia balls exhibit excellent corrosion resistance and can withstand the attack of a wide range of acidic and alkaline solutions; however, they may degrade under strongly alkaline conditions.
It is widely used in demanding applications such as high-speed machine tool spindles, aerospace engines, and new-energy vehicles. Standard grades ranging from 0.4 to 63.5 mm are suitable for precision mechanical components like bearings, valves, and pumps, offering high strength, excellent wear resistance, and superior high-temperature performance. Grades from 1.588 to 50 mm meet the requirements of complex manufacturing processes, such as high-precision bearings and specialized equipment. Grades from 3.0 to 20 mm are employed in grinding operations, including surface finishing of electronic components.
