The national standard for steel grit GB/T18838.3 "High Carbon Cast Steel Shot and Sand" has the following specific requirements for the hardness, particle size and impurity content of steel grit: Hardness: GH steel grit has high hardness, grayish white color, Rockwell hardness 60-65; GP steel grit is black-blue in color, Rockwell hardness 40-50; GL steel grit is blue in color, Rockwell hardness 50-55.
-Particle size: Steel sand of different particle sizes should meet the specified particle size range. The specific requirements are as follows:|Particle size|Specified particle size range||--|--||1#|0.8mm-1.2mm||2#|0.4mm-0.8mm||3#|0.2mm-0.4mm||4#|0.1mm-0.2mm||5#|0.05mm-0.1mm|-
Impurity content: The impurity content in steel sand should not exceed 0.8%, of which the sulfur and phosphorus contents should not exceed 0.05% respectively.
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?
