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Product Category

440C stainless steel ball

440C steel balls are spherical components made from high-carbon, high-chromium martensitic stainless steel. Their characteristics fully leverage the core performance of 440C steel and, combined with their “spherical shape,” make them ideal for applications such as bearings, grinding, and precision transmissions—resulting in three key advantages: hardness, wear resistance, and rust resistance.

Category:

AISI440C

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Keywords:

AISI440C

Detailed introduction

Product description:

Material: 440C stainless steel

Diameter: 0.5 mm – 100 mm

Accuracy grades: G5, G10, G16, G20, G28, G40, G100;

Hardness: HRC 55-58

Features: The 440C steel ball is a spherical component made from high-carbon, high-chromium martensitic stainless steel. Its characteristics are entirely derived from the core performance of 440C steel and are further enhanced by its “spherical shape,” making it ideal for applications such as bearings, grinding, and precision transmissions. This combination results in three key advantages: hardness, wear resistance, and rust resistance.

Applications: 440C steel balls are primarily used in environments with moderate to low corrosion, medium temperatures, and high demands for hardness, wear resistance, operational precision, and service life—such as precision bearings (for motors, machine tools, and automobiles), small-scale fine grinding equipment, precision valve spools, and transmission components for medical devices.

Physical properties:

Hardness: High

Corrosion-resistant: Good

Corrosion resistance: Good

Wear resistance: Good

Chemical composition: