Steel Grit
Aceblast has its own production line for high quality steel grit abrasivewith an excellent durability. In our warehouse we keep an extensive stock ofsteel shot and steel grit.
Steel grit is a very cost economic blasting media in shot blastingmachines and blast rooms, because it can be recycled many times. There arethree different hardness’, steel grit GP, steel grit GL and steel grit GH.
Steel grit blasting in surface preparation is used for cleaning rust, oldcoating layers and creating an anchor profile for the coating system to adhere.Steel grit blasting media are also used to remove mill scale and in the foundryindustry for removal of the sand from the work pieces.
Specifications
Chemical composition | (C): 0.80 – 1.20% | (Mn): 0.60 – 1.20% | (Si): ≥ 0.40 | (S): ≤ 0.05% | (P): ≤ 0.05% |
Hardness | GP: 42 – 52HRC, GL: 53 – 60HRC, GH: 60 – 64HRC | ||||
Hardness deviation | Max. deviation ±3.0 HRC | ||||
Microstructure | Tempered martensite or sorbite | ||||
Density | 7.6 g/cm³ | ||||
Bulk density | 4.2 g/cm³ | ||||
Grain sizes and hardness
High carbon steel grit produces an etched or angular surface profile and is well suited for cleaning, descaling, etching and desanding applications. Our high quality steel grit has a long service life and is used in both wheel blast machines and blast rooms. The steel grit is available in various sizes of grain and hardness.
Steel grit GH12 / GL12 / GP12 | 1,70 – 2,40 mm |
Steel grit GH14 / GL14 / GP14 | 1,40 – 2,00 mm |
Steel grit GH16 / GL16 / GP16 | 1,00 – 1,70 mm |
Steel grit GH18 / GL18 / GP18 | 0,70 – 1,40 mm |
Steel grit GH25 / GL25 / GP25 | 0,40 – 1,20 mm |
Steel grit GH40 / GL40 / GP40 | 0,30 – 1,00 mm |
Steel grit GH50 / GL50 / GP50 | 0,20 – 0,70 mm |
Steel grit GH80 / GL80 / GP80 | 0,10 – 0,40 mm |
Steel grit GH120 / GL120 / GP120 | 0,10 – 0,30 mm |
Steel grit GP
Has the lowest hardness in the range of 42 to 52 HRC and is also referred to as angular shot, because the grit will get a round shape during its lifetime. It Is mainly used in wheel blast machines and it has good results in the foundry industry because it cleans faster with little increase in maintenance costs and machine parts wear. Steel grit GP is used for cleaning, descaling and desanding.
Steel grit GL
Has a medium hardness in the range 53 to 60 HRC. It is used in wheel blast machines and blast rooms and is particularly suited to heavy descaling and surface preparation requirements. Although GL is of medium hardness, it also loses its angular shape during shot blasting.
Steel grit GH
The maximum hardness ranging from 60 to 64 HRC. It stays angular in the operating mix and is therefore ideally suited for surface etching requirements. GH is often used in blast rooms and pressure sandblasting cabinets for quick cleaning and to achieve an anchor profile prior to coating.
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