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High-Quality Steel Grits from China Suppliers - Durable Cast Steel Grits Manufacturer & Factory for Custom Sizes

We are a leading China factory specializing in the manufacturing of high-quality cast steel grit. Our products include various types of steel grits such as GP, GL, and GH, available in sizes ranging from G12 to G120. As reputable suppliers, we adhere to SAE standard specifications, ensuring our steel grits are produced using top-notch raw materials and cutting-edge technology. Our production process incorporates advanced techniques like centrifugation, tempering, double quenching, and updated screening to meet the needs of our global clientele. Additionally, we offer customization options for size and hardness, ensuring that our customers receive precisely what they require for their applications. Trust our China factory for durable and reliable steel grit solutions that are widely accepted by customers around the world

    Product Details

    Steel grit is crushed from good quality of steel shot, so quality of our steel grit is also very good. Basis on almost 20years manufacturing experience and good team works, we have already upgraded our quality to provide more value-added products to our customers. Sizes available of steel grits are G12, G14, G16, G18, G20, G25, G40, G50, G80, G120. As per different hardness, 3 types including GP 40-50HRC, GL 50-60HRC, GH 60-66HRC are available accordingly.

    Particle size distribution range table

    mesh mm Specification
    SG,H,L,P-2.5 SG,H,L,P-2.0 SG,H,L,P-1.7 SG,H,L,P-1.4 SG,H,L,P-1.2 SG,H,L,P-1.0 SG,H,L,P-0.7 SG,H,L,P-0.4 SG,H,L,P-0.3 SG,H,L,P-0.2
    7 2.80 all pass
    8 2.36 all pass
    10 2.00 80%min all pass
    12 1.70 90%min 80%min all pass
    14 1.40 90%min 80%min all pass
    16 1.18 90%min 75%min all pass
    18 1.00 85%min 75%min all pass
    20 0.850
    25 0.710 85%min 70%min all pass
    30 0.600
    35 0.500 80%min
    40 0.425 70%min all pass
    45 0.355 all pass
    50 0.300 80%min 65%min
    80 0.180 75%min 65%min
    120 0.125 75%min 60%min
    200 0.175 70%min
    325 0.075
    SAE G-10 G-12 G-14 G-16 G-18 G-25 G-40 G-50 G-80 G-120

    Technical indicators

    Name/Chemical composition GP Steel Shot GL Steel Shot GH Steel Shot
    C 0.85-1.20
    Mn 0.60-1.20
    Si 0.40-1.20
    S ≤0.05
    P ≤0.05
    Hardness HRC42-50 HRC 56-60 HRC 63-66
    Hardness Deviation Max Deviation±3.0HRC
    Metallogrphical structure Even tempered martensite
    Min Density(Can be determined by alcoholic displacement) 7.4g/cm³

    Product Application

    Surface sandblasting and secondary surface sandblasting of hull in shipyard, rust removal cleaning, as well as sandblasting and rust removal cleaning of the pretreatment line of production of hull steel plate.

    The section steel and steel plate accessories used in the steel structure are sandblasted and rust removed by the through shot blasting machine. Only suitable for the workpiece surface requirements of cleanliness and roughness, is conducive to the next process of painting etc. Therefore, for customers, we have to use high-quality and cost-effective steel shots to minimize production costs and reduce the loss of steel shots in sandblasting.

    Rust removal: Including shot blasting, shot peening, casting rust removal, forgings rust removal steel plate rust removal, forgings rust removal, steel rust removal, H steel rust removal, steel structure rust removal.

    Shot blasting: section steel shot blasting, section steel sandblasting, ship plate shot blasting, steel plate shot blasting, steel shot blasting.

    Pretreatment: coating pretreatment, surface pretreatment, ship plate pretreatment, steel pretreatment, steel plate pretreatment, steel structure pretreatment.

    Steel Grit (2)
    Steel Grit (1)
    Steel Grit (9)

    Product Packaging

    Steel Grit (8)
    Steel Grit (6)
    Steel Grit (7)

    Frequently Asked Questions

    What is steel grit and how is it produced?
    Steel grit is an angular abrasive media produced by crushing high-quality steel shot. It is heat-treated to achieve specific hardness levels (GP, GL, GH) and screened into various standard particle sizes to meet different surface cleaning requirements.
    What are the differences between GP, GL, and GH hardness grades?
    GP (40-50 HRC): Softer and loses its sharp edges quickly, making it ideal for general descaling. GL (50-60 HRC): Slightly harder, loses angularity during blasting, and is suitable for most surface preparation. GH (60-66 HRC): Maximum hardness, remains angular during operation, and is ideal for deep etching and rapid rust removal.
    Which industries commonly use steel grit?
    Steel grit is widely used in shipyards, steel structure fabrication plants, foundry shops, and metal pretreatment facilities for heavy-duty rust removal, paint stripping, descaling, and surface profiling before coating.
    Can steel grit be recycled?
    Yes, steel grit is highly durable and can be recycled and reused hundreds of times in closed-loop blasting systems. This makes it highly cost-effective and environmentally friendly compared to disposable blasting media.
    How do I select the right steel grit size for my project?
    Larger grit sizes (e.g., G12, G14) are suited for heavy rust removal and creating a deep surface profile. Smaller grit sizes (e.g., G80, G120) are ideal for lighter cleaning, finer finishes, and thinner coating applications.

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