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China Steel Grit Suppliers | High-Quality Cast Steel Grit Factory - GP/GL/GH Sizes G12-G120

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As a leading China manufacturer, we are dedicated to producing high-quality cast steel grits that meet international standards. Our product line includes a variety of types such as GP, GL, and GH, available in sizes ranging from G12 to G120.

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Our factory utilizes advanced technology and premium raw materials to ensure superior performance. Through processes like centrifugation, tempering, and double quenching, we guarantee that our steel grits receive meticulous attention during production. This commitment to quality has earned us a strong reputation among global suppliers and customers.

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We also offer customization options for size and hardness, making our cast steel grits versatile for various applications. Trust our expertise as we deliver top-notch products that exceed your expectations.

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    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.

    Product packaging

    Frequently Asked Questions

    What are the available hardness grades for steel grit?
    We provide three hardness types to meet various surface preparation needs: GP (40-50 HRC), GL (50-60 HRC), and GH (60-66 HRC).
    What sizes of steel grit can I order?
    Our available steel grit sizes range from coarse to fine specifications, including G12, G14, G16, G18, G20, G25, G40, G50, G80, and G120 (corresponding to SAE G-10 through G-120).
    What are the primary applications of steel grit?
    Steel grit is widely used in shipyard hull sandblasting, rust removal of steel structures, forgings and castings cleaning, and pre-coating surface preparation for section steel and steel plates.
    What is the chemical composition and structure of the steel grit?
    The steel grit contains Carbon (0.85-1.20%), Manganese (0.60-1.20%), Silicon (0.40-1.20%), Sulfur (≤0.05%), and Phosphorus (≤0.05%), with an even tempered martensite metallographical structure.
    What is the minimum density of this steel grit?
    The minimum density is 7.4 g/cm³, which can be determined via alcoholic displacement testing.
    How does steel grit benefit surface pretreatment?
    It efficiently creates the optimal surface cleanliness and roughness required for industrial coatings, improving paint adhesion while minimizing abrasive consumption and overall processing costs.

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