Steel Grit G25 Sand Blasting Abrasives

G25 Steel Grit

G25 Steel Grit is a medium-size angular abrasive used for standard shot blasting, rust removal and metal surface preparation. With controlled cutting action, stable particle size and good cleaning efficiency, G25 steel grit can create a moderate surface profile without excessive roughness. It is suitable for steel parts, castings, forgings, machinery components, welded structures and surfaces that need reliable preparation before painting, coating or finishing.

 

  • Payment :

    T/T, L/C
  • Product Origin :

    Shandong, China
  • Shipping Port :

    Qingdao
  • Lead Time :

    15-30 Days
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Product Introduction

 

G25 Steel Grit is a medium-size angular abrasive suitable for standard shot blasting and metal surface preparation. With controlled cutting action, stable particle size and reliable cleaning efficiency, G25 steel grit can remove rust, light scale and surface contaminants while producing a moderate surface profile. It is suitable for steel parts, fabricated metal components, castings, forgings, machinery parts and workpieces that require balanced cleaning performance before painting, powder coating or finishing.

Manufacturing Process

 

Steel grit is produced by melting high-quality steel, atomizing it into steel shot, crushing the shot into angular particles, and then screening and heat-treating the material according to required hardness and size.

During production, the steel grit is classified by sieve analysis and inspected for chemical composition, hardness, density and particle size distribution. This helps ensure stable cutting performance and consistent surface roughness during blasting.

Advantages

  • Medium-size angular abrasive for standard blasting applications
  • Provides controlled cutting action and stable surface profile
  • Suitable for general rust removal and surface cleaning
  • Helps avoid excessive roughness on medium workpieces
  • Good choice for balanced cleaning efficiency and surface quality

Specifications

Item Available Range
Product Type Cast Steel Grit
Common Sizes G25
Chemical Composition C, Si, Mn, P, S controlled
Hardness Commonly HRC 40-52, other hardness available
Density High-density metallic abrasive
Microstructure Tempered martensite
Shape Angular
Customization Size, hardness and packaging available upon request
SUBJECT GP GL GH
Chemical Composition C 0.80 - 1.20%
Mn 0.60 - 1.20%
Si 0.40% min.
S 0.05% max.
P 0.05% max.
Hardness (HRc) 40 - 51 54 - 60 60 min.
Microstructure Uniform Tempered Martensite
Density (g/cm³) 7.0 Min.
ISO 11124.3 SG-2.4 SG-2.0 SG-1.7 SG-1.4 SG-1.2 SG-1.0 SG-0.7 SG-0.5 SG-0.3 SG-0.2 SG-0.1 SG-0.05
mesh mm Steel Grit Size Specifications- Max&Min Cumulative Percentages Allowed on Corresponding Test Sieves
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                        
40 0.425           80%Min 70%Min   All Pass      
45 0.355                        
50 0.300             80%Min 65%Min   All Pass    
80 0.180               75%Min 65%Min   All Pass  
120 0.125                 75%Min 60%Min   All Pass
200 0.075                   70%Min 55%Min  
325 0.045                     65%Min 20%Min
SAE J444-2017 G-10 G-12 G-14 G-16 G-18 G-25 G-40 G-50 G-80 G-120 G-200 G-325

Applications

G25 steel grit is commonly used for medium-duty shot blasting, metal surface preparation, casting cleaning, machinery part cleaning and welded component treatment. It is suitable for steel parts, forgings, fabricated metal parts and workpieces requiring a moderate surface profile before coating or finishing.

Packaging

 
steel drums

Steel Drums

Packed in steel drums or palletized packaging.

 
bags

Bags

25 kg bags or jumbo bags.

Private-label packaging and customized package weight are available upon request.

Frequently Asked Questions

What is G25 steel grit used for?

G25 steel grit is a medium-size angular abrasive used for general shot blasting, rust removal, descaling and surface preparation before painting or coating. It provides a good balance between cleaning efficiency and surface profile control.

G25 steel grit is commonly used for steel plates, steel structures, castings, forgings, machinery parts and welded components. It is suitable for removing rust, mill scale, oxide scale and surface impurities while creating a clean anchor profile for coating adhesion.

What is the difference between G18 and G25 steel grit?

G18 steel grit has a larger particle size and provides stronger cutting power with a deeper surface profile. It is suitable for heavier rust, thicker scale and stronger surface contamination.

G25 steel grit is finer than G18. It provides more controlled cleaning performance and creates a more moderate surface roughness. It is suitable for general surface preparation where the workpiece needs effective cleaning without an excessively deep surface profile.

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