Steel Grit

Production of various steel grit sizes in different dimensions, with guaranteed quality, competitive pricing, and fast nationwide delivery.

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What is

What is Steel Grit?

Steel grit is a highly durable industrial abrasive made from high-carbon steel. Due to its angular shape and high hardness, it provides excellent cutting and cleaning performance. This material is widely used in shot blasting, surface preparation, sandblasting, rust removal, and stripping of old coatings.

Comparison

Types of Steel Grit

Steel grit is available in the following sizes (common industrial standards):

Size

Applications

G12 – G14

Severe surface roughening and removal of thick coatings

G16 – G18

Cleaning heavy and steel components

G25 – G40

Surface preparation before painting, medium profile

G50 – G80

Delicate cleaning of sensitive industrial components

Production

How is steel grit manufactured?

Steel grit is typically produced using two main methods, each with its own advantages and applications. The casting method (Cast Steel Shot Production) is the most common technique for manufacturing steel grit.

1

Steel Shot Production

The raw material for steel grit is high-carbon steel. First, the molten steel is converted into spherical steel shots using atomizer or centrifugal equipment.

2

Crushing

In this stage, the steel shots are placed in industrial mills and crushed by grinding equipment into angular pieces. This process transforms the spherical shots into sharp, multi-sided particles, which are the primary characteristic of steel grit.

3

Screening / Sieving

After crushing, the steel particles are passed through precise sieves and screens to ensure each size falls within its standard range.

4

Heat Treatment

This is the most critical stage. Steel grit undergoes heat treatment to achieve standard hardness and durability:

  • Quenching to increase hardness

  • Tempering to control brittleness

  • Hardness adjusted between 40 to 65 HRC depending on the application

This process ensures that the grit breaks less during shot blasting and has a longer service life.

5

Impurity Removal (Purification)

Fine particles, iron powder, chips, and out-of-standard particles are removed using:

  • Magnetic separators

  • Air systems

  • Vibrating screens and sieves

This ensures high product purity.

6

Quality Control

At this stage, the following are inspected:

  • Precise hardness (HRC)

  • Angular shape of particles

  • Size uniformity

  • Density

  • Resistance to breakage

Applications

Where is steel grit used?

Steel grit is a strong, angular abrasive used across various industries for shot blasting, derusting, surface stripping, and preparation. Due to its high hardness and excellent cutting power, it is ideal for removing rust, oxide scales, old paint, and stubborn deposits from metal components. Steel grit is widely applied in the steel, oil and gas, petrochemical, shipbuilding, component manufacturing, metal structures, tanks, and pipeline industries. By creating a standardized surface profile, it significantly improves the adhesion of paint and industrial coatings. For projects requiring fast, uniform, and cost-effective cleaning, steel grit is often the first choice.

Steel grit is a highly durable industrial abrasive used in various applications, including:

  • Severe surface roughening and removal of thick coatings

  • Cleaning heavy and steel components in foundries and manufacturing

  • Surface preparation before painting or coating, providing medium to high-profile textures

  • Delicate cleaning of sensitive industrial parts

  • Derusting of steel structures, machinery, and automotive components

  • Shot blasting to increase surface adhesion for coatings

  • Preparation for thermal or wear-resistant coatings

  • Industrial maintenance to improve performance and extend the lifespan of equipment

Its angular shape, high hardness, and long service life make steel grit ideal for aggressive cleaning and surface preparation tasks across multiple industries.

FAQ

Frequently Asked Questions

What is the difference between steel grit and steel shot?

Steel shot is round and is used in shot blasting for smooth surfaces and polishing, whereas steel grit is angular and used for removing layers and roughening surfaces.

Depending on the equipment and conditions, steel grit can be reused between 30 and 100 times.

Typically, grit sizes G25 to G40 are suitable for surface preparation before painting.

Due to its metallic nature, it produces very little dust and is suitable for industrial environments.