AISI 1085 High-Carbon Steel Balls for Bearings and Wear Parts
REDHILL supplies AISI 1085 high-carbon steel balls for ball bearings, automotive components and mechanical parts. A carbon content close to 0.85% allows the steel to develop high hardness during heat treatment. As a result, the material suits applications that need resistance to surface wear.
Key Material Data
The following values provide reference data for the material. However, steel specification, ball size and heat treatment affect the final properties.
- Reference composition: C 0.80–0.94%, Mn 0.70–1.00%; iron balance.
- Structure: Tempered martensite after hardening and tempering.
- Heat treatment: Hardening and tempering to the required hardness profile.
- Reference hardness: 60–66 HRC, depending on ball size and heat treatment.
- Density: Approximately 7.85 g/cm³.
- Magnetic properties: Magnetic at room temperature.
Hardness, Wear Resistance and Precision
Hardening increases resistance to wear and contact deformation. Therefore, 1085 offers a practical option for many general mechanical parts. In addition, the chosen precision grade helps control fit and running accuracy.
However, 1085 has limited corrosion resistance. Therefore, select lubrication and any surface protection to suit the working environment. Proper storage also helps protect the ball surface before assembly.
Applications of AISI 1085 High-Carbon Steel Balls
For example, common uses include:
- Bearings: Rolling elements in ball bearings for general-purpose equipment.
- Automotive and bicycle components: Selected bearings and mechanical assemblies.
- Motion systems: Drawer slides, guide rails, casters and roller conveyors.
- Industrial equipment: Agitators and selected polishing and milling machines.
Grades and Sizes
- Precision grades: G10–G200. See our precision grade guide for tolerance details.
- Diameter range: 0.5–150.0 mm, subject to the required grade and material condition.
In addition, specify the surface finish and any core hardness requirement with your inquiry. Finally, send us your ball diameter, quantity and working conditions. We can then confirm the available specification and lead time.