Selecting stainless steel balls requires considering the application scenario and focusing on three core factors: material, specification, and quality. In terms of material, 201 stainless steel balls offer high cost-effectiveness but relatively weak corrosion resistance, making them suitable for general scenarios with dry conditions and no acid or alkali exposure. 304 stainless steel balls have strong rust resistance and are commonly used in food machinery and medical equipment. 316 stainless steel balls resist acids, alkalis, and seawater corrosion, making them ideal for harsh environments such as chemical and marine equipment.
Specifications should match specific needs. Diameters range from 0.5mm to 100mm. For precision instruments, high-precision models (with a tolerance of ±0.001mm) are recommended, while for grinding and polishing purposes, regular-precision models can be selected based on the size of the workpiece. Quality inspection can be done through three steps: check the surface for no cracks or burrs; test with a magnet—201 stainless steel balls have strong magnetism, 304 have weak magnetism, and 316 have almost no magnetism; if necessary, test the hardness using professional equipment to ensure it meets the required strength for the application.
In summary, first clarify the usage environment and requirements, then select the appropriate material and determine the specification accordingly, and finally inspect the quality. By following these steps, you can choose the right stainless steel balls.
