Bearing Steel Grit is processed to the high quality,with strict quality control at every stage of processing,packaging and transportation.Compared with traditional steel grit made by crushing steel shot, bearing steel grit is crushed directly from cut-off bearing steel into grit. It has the better resistance due to it has higher metallic cr composition than normal casting steel grit.
STEEL GRIT CAPABILITY INTRODUCTION:
Raw material is non casting bearing steel, it is crushed after quenching, then it is tempered. Product features with wear resistance and high impact toughness. According to different application, steel grit is devided into below 3 types:
Type A: Hardness>60HRC
This type is specially developed for granite cutting with stable performance, uniform grain size and high wear resistant. It has been approved by our customers that angular steel grit are sharper, faster cutting speed than arc steel grit and sawing surface finished is flatter and smoother.
Type B: Hardness>53-60HRC
It is angular shape in the originals and is gradually ground round, especially applicable to removing the oxygenated surface, cleaning of metal parts and shot peening
Type C: Hardness> 40-50HRC
The hardness is lower than type B, In the process of the abrasives blasting. Its edges are removed slowly, especially applicable to removing the oxygenated surface, cleaning of metal parts and pre-treatment.
We strictly according to GB "GB/T18838.3-2008 high carbon steel shot and sand", American steel casting association "SFSA20-66 cast steel abrasive standard", American motorcar engineer association "SAE standards," J827 cast steel shot in Chinese
Black people republic of metallurgical industry "YB/T5149-93 cast steel shot", the U.S. army standard "MIL - S - 851 cleaning and strengthen with metal kind steel grit and steel shot standards" and "international organization for standardization ISO11124-3 standard high carbon steel shot cast.
Steel grit plastic woven sack packaging, packaging bags which steel grit, steel grit wood pallet packaging, paper bag steel grit packaging, bucket type steel bolus packaging.
Made of bearing steel material with special technology, the bearing angular steel grit has fine and homogeneous microstructure. With advantages of higher efficiency, longer life-cycle and less consumption than normal steel grit, it will obviously reduce the comprehensive cost. Such an excellent steel grit is recommended for blast cleaning and surface preparation.
Products steel grit
Chemical compositionc0.70~1.20%
Mn0.6~1.20%
Si0.40~1.20%
Sless than 0.05%
Pless than 0.05%
Microhardnessnormal: 40~50hrc (377~509hv)
Special: 52~56hrc (543~620hv)
Special: 56~60hrc (620~713hv)
Hardness deviationmax deviation ± 3.0hrc, ± 40hv
Microstructureeven tempered martensite and dispersed carbon
Density7.2g/cm3
Steel grit types:
Gp:angular when new, this grit rapidly rounds off in use and its particularly suited descaling applications.
Gl:although harder then gp steel grit, also loses its sharp edges during shto basting and is particularly suited to descaling and surface preparation applications.
Gh:having maximum hardness, gh always remains angular in its operating mix. These abrasive are particularly effective in surface treatment processes and produce a uniform, etched finish, gh angular grit should only be used in wheel machines where working requirements take precedence over cost price considerations (for example with rolling mill cylinders or when a special finish is needed). For use mainly with compressed air equipment.
Product origin:china
Brand name:taa
Price terms:fob cif
Payment terms:t/t or l/c at sight
Supply ability:20, 000mt/year
Steel grit is made from broken cast steel shot after heat treatment and
Then is heat-treated again.
Excellent material and proper heat treatment make it of high hardness, big density and compact microscopic structure, so it is of fast cutting speed,
Less abrasion and flat cutting surface when cutting stone material.
We can make most suitable product schemes according to the customer's
Actual situation because different stone processing enterprises have
Different cutting equipment, cutting speeds, cutting pressure ability to
Cut granite, etc.
We can supply customers with special steel sand on request, such as special
Hardness, sizes and combinations of steel shot.
Types available:
Gp steel grit is angular when new. It rapidly rounds off in use and is
Particularly suited to removing sand from casting and scaling oxides
Gl steel grit, although harder than gp steel grit, loses its sharp edges
During shot blasting and is particularly suited to de-scaling and
Surface preparation applications
Gh steel grit, having maximum hardness, always remains angular in its
Operation mix. These abrasives are particularly effective in surface
Treatment processes and produce a uniform, etched finish.
Specifications: g12, g14, g16, g18, g25, g40, g50, g80 and g120.
Product feature
Chemical composition of the products:
C 0.85-1.20% mn 0.60-1.20%, si 0.60-1.20%. Sf_0.05% pf_0.05%.
Hardness:
Steel grit(gp):46-50hrc
Steel grit(gl):56-60hrc
Steel grit(gh):63-65hrc
Density:
Steel shot: fª7.4g/cucm
Microstructure: homogeneous tempered martensite and baintite.
