Stainless steel ball bearings might not be a stranger to most, as they are present in many aspects of everyday life, though often overlooked. Today, I'll introduce you to the stainless steel ball and delve into the quality inspection process for stainless steel ball forgings.

The purpose of quality inspection for stainless steel ball forgings is to ensure that the forgings meet the technical standards for forgings, thus satisfying the design and usage requirements of the product. The inspection encompasses several aspects, including forging dimensions, shape, surface quality, and internal quality, with a focus on the latter.

Forgings are inspected according to their stress conditions, importance, working conditions, as well as the materials and metallurgical processes involved. Different industrial sectors have varying classifications, inspection items, and quality requirements for forgings; some sectors categorize forgings into three types, while others divide them into four or five categories. Carbon 1-8 specifies the inspection requirements for the classification of structural sodium and heat-resistant stainless steel forgings.

A brief introduction to the quality inspection content and meaningful measures for forgings of different materials and specifications:

For general forging parts, samples are typically cut from the pre-heat treatment state and then tested for mechanical properties, fracture surfaces, and grain boundaries after the specified heat treatment. In the case of Austenitic steel, high-temperature alloys, aluminum alloys, magnesium alloys, tungsten alloys, and copper alloys, samples are directly taken from the forging in the final heat treatment state for testing their mechanical properties and low magnification features.

For general steel and silver components, only tensile and impact tests at room temperature are conducted. As for high-temperature alloy parts, high-temperature alloys, aluminum alloys, magnesium alloys, and copper alloys, impact tests are generally not performed.