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Steel Grit G18

Premium Quality Steel Grit G18 - Supplier from China

Looking for high-quality steel grit for your industrial needs? Look no further than Kangfeides! As a leading wholesaler in China, we are proud to offer Steel Grit G18, which meets the highest industry standards. Our grit is perfect for surface preparation, cleaning, and removing tough coatings. With our competitive wholesale prices, you can save big on your grit supply. Don’t miss out on this opportunity to level up your industrial processes. Contact us today to place your order and experience the Kangfeides difference!

  • Introducing Steel Grit G18 from Kangfeides

    Introducing Steel Grit G18 from Kangfeides

• Kangfeides’ Steel Grit G18 is a revolutionary innovation that offers superior hardness and tenacity.
• Its exceptional versatility makes it suitable for a variety of applications, from construction to automotive.
• The Steel Grit G18 is lauded by industry experts for its outstanding performance in terms of longevity, reliability, and cost-effectiveness.
• By choosing the Steel Grit G18, customers can benefit from increased productivity and reduced operational costs.
• Experience the cutting-edge technology of Kangfeides’ Steel Grit G18 today!

Steel Grit G18
Steel Grit G18

Specification sheet for the Steel Grit G18

Steel Grit /Metal Abrasives/ Cast Steel Grit/Chilled Steel Grit/Steel Sand
High Carbon Steel GritBearing Steel Grit
Hardness40-50HRC; 50-60HRC; 60-65HRC
  • Introducing Steel Grit G18 from Kangfeides

    Quality Control

We immense pride in our company’s robust in-house quality control system, which adheres to stringent standards for testing and maintaining our top-notch abrasives. Utilizing comprehensive testing techniques like chemical analysis, hardness assessment, density measurement, and fatigue life testing, we ensure the production of only the highest quality products. Additionally, through our partnership with SGS Qingdao branch, we expand our testing capabilities to include abrasive conductivity testing, allowing us to meet even the most specific requirements. With an unwavering commitment to excellence, we assure you that every step of our process is dedicated to delivering the utmost quality.

Steel Grit Size
Steel Grit Size
  • Introducing Steel Grit G18 from Kangfeides

    Steel Grit G18 Production Process

• Melting: Steel scrap is melted in an electric arc furnace (EAF) at temperatures exceeding 1600°C.
• Atomization: Molten steel is then forced through a high-pressure nozzle, forming small droplets.
• Heat Treatment: The steel grits are subsequently quenched and tempered, enhancing their hardness and durability.
• Screening: The steel grits are carefully screened into various sizes, with G25 (1.0 mm) being the optimal size for medium to heavy-duty blasting.

  • Introducing Steel Grit G18 from Kangfeides

    Steel Grit Application

– Removing rust and other surface impurities from steel structures, plates, billets, and construction materials.

– Prepping surfaces for painting, metallic plating, and metal spraying by etching.

– Utilizing gang-saws to cut granite blocks within the granite industry.

– Adding texture to stones and concrete blocks for surface roughness.

Steel Grit Application
Steel Grit Application
choose Steel Grit G18
  • Introducing Steel Grit G18 from Kangfeides

    Why Choose Our Steel Grit G18

Steel Grit G18 is an ideal blasting abrasive, boasting superior hardness (60-65 HRC) and durability.
• Advanced technology and processing techniques ensure consistent particle size, resulting in an even cleaning/peening process.
• Eco-friendly product made from recycled steel with a low carbon footprint; reduces waste and lowers costs.
• Cost-effective compared to other blasting abrasives due to long-lasting properties and less material needed per job.
• Wide range of applications such as automotive, aerospace, military, rust removal, and surface preparation for painting/coatings.

Related Product Recommendation

Steel Grit G18: The Perfect Blast Media for Cleaning and Blasting

Steel Grit G18 is a superior blast media that is redefining standards in the blasting and cleaning industry. It stands out from its competitors with its unparalleled hardness and tenacity, cost-effectiveness, and longevity. This discussion offers a comprehensive understanding of the product, including technical specifications, unique features, practical applications, and comparative analysis. Its history will be explored, as well as its versatile applications across diverse industries such as construction, manufacturing, and automotive.

Overview of Steel Grit G18

Overview of Steel Grit G18

Steel Grit G18 is a highly versatile and durable blast media, often employed in abrasive blasting and surface preparation processes. Composed of angular steel particles with a hardness of 40-50 HRC, it excels in quick and efficient removal of coatings, rust, and scale from a wide range of surfaces. Its sharp, angular profile facilitates aggressive surface etching, providing an ideal anchor pattern for coatings to adhere. The durability and recyclability of Steel Grit G18 make it both a cost-effective and environmentally friendly choice for industrial blasting operations.

Explanation of the G18 specification

The ‘G18’ in Steel Grit G18 is a specification that denotes the average grit size of the particles. The ‘G’ stands for ‘grit,’ while ’18’ corresponds to the approximate number of particles per inch when the grit is sifted through a sieve. The smaller the number, the larger the grit size. Hence, G18 represents a relatively large, coarse grit size, ideal for heavy-duty blasting and cleaning applications. This larger size ensures a higher impact force upon collision with the surface, providing comprehensive and aggressive surface treatment. By choosing G18, users can achieve quicker, more thorough results in their blasting and cleaning operations.

Applications of steel grit G18

Steel Grit G18 finds wide applications in various industries due to its robustness and efficiency. In the shipbuilding industry, it is commonly used for cleaning and conditioning metal surfaces before the application of paints and coatings. In the auto industry, G18 is employed to remove old paint and rust from car frames and components, preparing them for repainting or welding. In the oil and gas sector, it is used for surface treatment of pipelines and storage tanks, ensuring a clean and corrosion-free surface for coating application. G18 is also utilized in the structural steel industry for blasting and cleaning large steel structures before painting. Its high impact force makes it a popular choice for heavy-duty cleaning and restoration tasks, such as removing graffiti or cleaning stone and brickwork in construction and restoration projects.

Advantages of Steel Grit G18

Advantages of Steel Grit G18

Durability and longevity

Steel grit G18 offers numerous advantages that make it exceptional for industrial use. Its durability and longevity stand out, with the grit maintaining its abrasive properties even after multiple services, which translates into long-term cost savings. The high durability also means less time spent on replacing worn-out abrasive materials, enhancing operational efficiency.

High impact resistance

Another critical advantage of G18 is its high impact resistance. This grit can withstand the rigors of heavy-duty blasting operations, maintaining its shape and size despite the high-speed impact with rigid surfaces. This characteristic ensures consistent performance and results, particularly in tasks that require a high degree of surface cleanliness and roughness.

Effectiveness in removing coatings

G18’s effectiveness in removing coatings is also noteworthy. Whether it’s stripping off old paint, rust, or other coatings, G18 performs exceptionally well due to its coarse size and high impact force. It provides thorough and efficient removal, preparing surfaces perfectly for subsequent treatments such as repainting, coating, or welding. In conclusion, Steel Grit G18’s durability, impact resistance, and effectiveness in coating removal make it an excellent choice for various industries.

Different Variants of Steel Grit

Different Variants of Steel Grit

There are several variants of steel grit available in the market, with G18, G25, and G40 being among the most commonly used. Each of these variants offers unique benefits and is suited for different applications.

Comparison between G18, G25, and G40 Grit Sizes

G18, G25, and G40 differ primarily in their grit sizes. G18 has the coarsest size, followed by G25 and then G40. This size directly affects the impact force and the surface finish after blasting. G18, with its rough size, delivers the highest impact force, making it ideal for aggressive cleaning and coating removal. G25, being moderately rough, offers a balance between cleaning speed and surface finish. G40, having the finest size among the three, provides the smoothest finish but with a relatively lower impact force.

Benefits of Using G18 and G25 Combinations

Combining G18 and G25 can provide a more versatile solution for cleaning and surface preparation tasks. While G18 excels in removing tough coatings, G25 can help smooth the surface finish, preparing it better for further treatments. This combination allows businesses to achieve both efficiency and quality in their blasting operations.

Applications of G40 Steel Grit

The fine size and lower impact force of G40 make it perfect for applications requiring a smooth surface finish with minimal roughness. This includes preparing surfaces for painting or coating in industries like automotive, aerospace, and machinery, where a high-quality finish is crucial. Its lower impact force also means less wear on the blasting equipment, potentially extending its lifespan.

Using Steel Grit G18 for Shot Blasting

Using Steel Grit G18 for Shot Blasting

Overview of Shot Blasting Process

Shot blasting is a surface treatment process that propels small, spherical media at high velocity toward a targeted surface. This process is utilized extensively to clean, strengthen, or polish metal surfaces, preparing them for subsequent operations like coating, painting, or welding.

Importance of Steel Grit in Shot Blasting

Steel grit plays a critical role in the shot-blasting process. The size, shape, and hardness of steel grit can be manipulated to achieve desired surface finishes, from roughened textures for improved paint adhesion to smooth finishes for delicate components. G18 steel grit, with its coarse size and high impact force, is particularly effective for aggressive cleaning and coating removal. Its application in the shot blasting process can significantly improve cleaning efficiency and surface quality, making it an essential tool in surface preparation tasks.

Benefits of Steel Grit G18 for Shot Blasting

Benefits of Steel Grit G18 for Shot Blasting

Efficient removal of rust and old coatings

G18 steel grit offers significant advantages in the shot blasting process, which contribute to its widespread adoption in the industry. Its primary benefit lies in its efficient removal of rust and old coatings. The coarse size and high impact force of G18 grit allow for aggressive cleaning, effectively stripping away corroded layers and aged coatings to expose the clean, raw metal surface beneath.

Enhanced surface preparation

Moreover, G18 steel grit plays a crucial role in enhancing surface preparation. It creates a uniform, roughened texture on the metal surface, thereby promoting better adhesion for subsequent coating or painting. This is especially beneficial in industries where maintaining the longevity and aesthetic appeal of the coated or painted surface is of utmost importance. Therefore, incorporating G18 steel grit into shot blasting operations can lead to significant improvements in productivity, surface quality, and finished product lifespan.

Successful Applications of Steel Grit G18 in Shot Blasting

G18 Grit for Granite Gang Saw

The application of G18 steel grit extends from the metal industry to the stone industry, particularly in the cutting of granite slabs. By employing G18 grit in granite gang saws, the cutting process becomes more efficient and precise. The hardness and sharp edges of G18 grit contribute to clean and well-defined cuts, reducing wastage and resulting in a smoother surface that requires less polishing.

Utilizing G18, G25, G30 Bearing Steel Grit

In addition to G18, G25, and G30 bearing steel, grits are also widely used in shot blasting processes for their unique benefits. G25, being slightly finer than G18, is ideal for the removal of light rust or for achieving a finer surface finish. G30, the finest among the three, is perfect for precision blasting, where a smooth finish is required. By strategically choosing the appropriate grit size, operators can optimize their shot blasting processes, improve the quality of their finished product, and maximize efficiency.

Tips for Effective Shot Blasting with Steel Grit G18

When using Steel Grit G18 for shot blasting, the following tips can help to optimize the process:

Proper Equipment Selection

Choosing the right blasting equipment is crucial to the success of the operation. Ensure that the equipment is compatible with G18 steel grit and can handle its hardness and size. An incorrect choice of equipment can lead to reduced efficiency, damage to the machine, and sub-optimal surface finishes.

Optimal Blasting Parameters

To maximize efficiency and achieve the desired surface finish, it is essential to set the correct blasting parameters. These include the air pressure, grit flow rate, and the angle of the blast. Experimenting with different settings within the manufacturers’ recommended parameters can help find the optimal configuration for each specific application.

Safety Precautions

Shot blasting with G18 steel grit can generate dust and noise, which are potential health hazards. Therefore, it is essential to follow safety precautions such as wearing protective clothing, using dust extraction systems, and ensuring adequate noise control. Regular maintenance of equipment and periodic health and safety training for operators can also contribute to a safer working environment.

Manufacturing and Selection of Steel Grit G18

Manufacturing and Selection of Steel Grit G18

Manufacturing Process

The production of Steel Grit G18 begins with the selection of high-quality steel sourced from reputable suppliers. This is followed by a heat treatment process where the steel is heated to a specific temperature before it is rapidly cooled. This process changes the steel’s structure, enhancing its hardness and durability.

The heat-treated steel is then crushed into grit particles, which are subsequently screened to separate them into different sizes. The particles that fall within the scope range for G18 are selected and further heat treated to achieve the optimal hardness for shot blasting.

The final step in the manufacturing process is tempering, where the grit is heated again but at a lower temperature to relieve any internal stresses. This process improves the grit’s durability and longevity, making it suitable for repeated use in shot-blasting operations.

Quality Control Measures

Quality control is fundamental to the production of Steel Grit G18. Rigorous testing is conducted at every stage of the manufacturing process, including hardness testing after each heat treatment and size grading after crushing.

Furthermore, periodic sampling and testing are performed to ensure consistency in quality throughout the production run. The final product is tested for hardness, size, shape, and density against established standards before it is packaged for shipping.

By ensuring stringent quality control measures, we can guarantee that every batch of Steel Grit G18 meets the highest standards of quality and delivers optimal performance in shot blasting applications.

Factors to Consider in Steel Grit G18 Selection

When selecting Steel Grit G18 for your shot blasting needs, there are a number of crucial factors to consider.

Hardness Properties: The hardness of the grit directly influences the speed and efficiency of the blasting process. A higher hardness level offers faster cleaning but may lead to quicker wear of the blasting equipment. Therefore, it’s essential to select a grit with an optimal hardness rating that balances efficiency and equipment longevity.

Cleaning and Recycling Capabilities: Steel Grit G18 is known for its recyclability, thanks to its high durability. Its ability to be used multiple times before replacement significantly reduces operational costs. Evaluating the grit’s cleaning efficiency and recyclability is critical to optimizing your shot blasting process and ensuring cost-effectiveness.

Price and Availability: The cost of the grit and its availability in the market are also significant factors. While the initial cost might be high, the long-term savings achieved through recycling can result in overall cost-effectiveness. Ensuring a reliable supply is also critical to avoid operational disruptions. Therefore, selecting a supplier who can consistently provide high-quality Steel Grit G18 at a reasonable price is crucial.



In the realm of abrasive blasting, Steel Grit G18’s durability and efficiency stand unparalleled. Its exceptional hardness properties not only enhance the speed and proficiency of the blasting process but also ensure its broad applicability across a variety of industrial applications. The selection of the right Steel Grit is paramount, steering the effectiveness, cost efficiency, and overall performance of the blasting operation. The long-term version of Steel Grit G18 and the high-quality surface finish it delivers further testify to its superiority as an abrasive medium. Its recycling capabilities confer operational cost savings, making it an economically viable choice that doesn’t compromise on performance. Thus, Steel Grit G18 emerges as a cost-effective yet high-performing grit selection, providing sustainability and quality in your abrasive blasting needs.


  1. Member, A. W. (2008). Blast Cleaning Technology. Springer Science & Business Media.
  2. Van Der Wegen, L. (2005). Steel Abrasives: Properties, Production, and Applications. Industrial Minerals and Their Uses: A Handbook and Formulary, 173-185.
  3. Gupta, B. (2010). Abrasive Blasting. ASM Handbook, 5, 263-270.
  4. Lewis, P. (2002). The effect of shot blasting on substrate profile and coating performance. Journal of Protective Coatings & Linings, 19(6), 42-58.
  5. Kikuchi, M. (2012). Effects of Abrasive Recycling in Steel Grit Blasting. Journal of Japan Society for Abrasive Technology, 56(6), 275-279.
  6. Van Der Wegen, L., & Kikuchi, M. (2013). Steel Grit: A Cost-Effective and High-Performance Blasting Medium. Proceedings of the 7th International Symposium on Steel Surface Treatment Technologies.
  7. Khanna, R., & Singh, P. (2009). An insight into abrasive blasting processes. Journal of Materials Processing Technology, 209(6), 2884-2893.
  8. Weir, D. (2005). The application of shot peening and abrasive blasting to the treatment of concrete surfaces. Cement and Concrete Composites, 27(10), 917-924.
  9. Momber, A. W., & Kikuchi, M. (2010). Advances in Abrasive Technology XII. Proceedings of the 12th International Symposium on Advances in Abrasive Technology.
  10. González, R., & Torres-Sánchez, J. C. (2013). Effectiveness and cost analysis of abrasive blasting materials. Journal of Cleaner Production, 46, 280-285.
  11. Roane, J. (2003). Abrasive blasting: efficient and environmentally friendly. Environmental Science & Technology, 37(7), 134A-137A.
  12. Wypych, G. (2016). Handbook of Abrasives Technologies. ChemTec Publishing.

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Frequently Asked Questions

A: Steel grit g18 is a specific size classification within the steel grit family. It is coarser than g25 and g40 but finer than larger sizes such as g12 or g14.

A: The price of steel grit g18 can vary depending on factors such as quantity, manufacturer, and location. It is best to contact suppliers or check online for current pricing.

A: Steel grit g18 is typically recommended for use on carbon steel surfaces. For blasting stainless steel, it is advisable to use stainless steel shot or other specialized blasting media to avoid contamination or damage.

A: Steel grit g18 is primarily made from high-carbon steel, which typically has a chemical composition of around 0.7-1.2% carbon, 0.3-0.9% manganese, and trace amounts of other elements such as silicon and sulfur.

A: Yes, steel grit g18 can be used for sandblasting applications. Its sharp edges and high hardness make it effective in removing rust, scale, and paint from various surfaces.

A: The recommended blast machine size for steel grit g18 can vary depending on the specific application. It is best to consult the manufacturer’s guidelines or seek advice from an expert in blasting equipment.

A: Steel grit g18 is not typically recommended for blasting granite gang. It is advisable to use specialized blasting media such as garnet or other abrasives designed explicitly for this application.

A: Steel grit g18 is made by crushing specially heat-treated high-carbon steel into angular particles. These particles are then screened and classified according to size to create the desired grade.

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