Steel shot and high carbon steel shot:
The hardness range is generally HRC 40~50.
If used to process hard metal, the hardness can be increased to HRC 57~62.
The hardness range of some special-purpose steel shots also includes HRC 42~50, HRC 56~60, HRC 63~66, etc.
The hardness deviation range is usually ±3.0HRC.
Cast iron shot:
The hardness is HRC 58~65.
Cast iron shot has a higher hardness, but it is very brittle, easy to break, and has a short service life.
Reinforced steel shot:
The hardness range is 640±30 Vickers hardness (HV).
The hardness deviation range is ±25 Vickers hardness.
In addition, the microhardness range of some high carbon steel shots is between 390HV~530HV.
Summary:
The hardness range of steel shot is relatively wide, ranging from HRC 40~50 to HRC 63~66, depending on the type, composition and purpose of the steel shot. Hardness is one of the important performance indicators of steel shot, which directly affects the service life and cleaning effect of steel shot. When selecting steel shot, the appropriate hardness range should be selected according to the specific processing requirements and workpiece material.
Steel shot is widely used for descaling and rust removal treatment
How are steel shot and grit used to treat steel surfaces?
Steel shot is widely used for descaling and rust removal treatment
What are the unique characteristics of steel shot?
