Factory Steel Grit Abrasive for Polishing and Sandblasting

• Customization: Available
• Natural Abrasive Type: Grit Blasting
• Artificial Abrasive Type: Steel Grit
• Model NO.: Steel Grit
• Application: Auto Parts
• Function: Surface Finish
• Source: Natural Abrasives
• Particle Size: Abrasive
• Shape: Angular
• Color: Black, Blue, Gray
• Cr: 0.26%
• C: 0.8-1.2%
• Mn: 0.6-1.2%
• Si: 0.4-1.2%
• S: Less Than 0.05%
• P: Less Than 0.05%
• Fatigue Life Time: 3000 Times
• Certificate: ISO
• Business: Manufacturer
• Standard: SAE
• Samples: Within 500g Free
• Customers: All Over The World
• Transport Package: 25kg/Bag, 40bags in One Big Bag. 1 Ton in 1 Bag
• Specification: 1.0MM
• Trademark: junda
• Origin: China
• HS Code: 720510
• Production Capacity: 3000tons/Month

Product Description

Product Description

Factory Price Bearing Steel Grit for Marble Cutting

update:January 20th, 2026

Specification

Hardness	Wear Characteristic	Primary Application
GP Steel Grit	Standard	New: pointed and ribbed. Edges round quickly during use.	Ideal for steel surface pretreatment, especially for oxide removal.
GL Steel Grit	Higher than GP	Harder than GP, but still loses edges/corners during blasting.	Especially suitable for removing oxide scale on steel surfaces.
GH Steel Grit	Very High	Maintains sharp edges and corners throughout blasting operation.	Effective for creating a uniform, anchor-profile (dense, regular roughness).

 General Product Information

Production Process: Junda Steel Grit is manufactured by crushing steel shot into angular particles, which are then tempered to achieve different hardness levels for various applications. The grit is sized according to SAE standard specifications.
Material Structure: It features a tight structure and uniform particle size.
Primary Use: A common abrasive material for processing metal workpieces.

Key Advantages of Using Steel Grit/Shot

Increases Surface Stress: Treating metal surfaces with steel grit/shot enhances the surface compressive stress, thereby improving the workpiece's fatigue resistance.
Fast Cleaning Speed: Enables rapid cleaning of surfaces.
Excellent Rebound & Coverage: Good recyclability and ability to clean internal corners and complex-shaped workpieces uniformly and quickly.
Improves Efficiency: Shortens surface treatment time and boosts overall work efficiency.

Bearing Steel Grit
Type	G120       G80         G50        G40         G25      G18        G16         G14        G12         G10
Diameter	0.2mm    0.3mm    0.5mm   0.7mm    1.0m     1.2mm    1.4mm    1.6mm    2.0mm     2.5mm
Chemical composition%	Cr	1.0-1.5
	C	0.8-1.2
	Si	0.4-1.2
	Mn	0.6-1.2
	S	<0.05
	P	<0.05
Hardness	GP (40-51HRC)                    GL (50-55HRC)                      GH(60-68HRC)
Density	7.4g/cm3
Appearance	Spherical                              Hollow particles<5%                 Crack particle<3%

Steel grit meet American SAE standard, have Moderate hardness, toughness, impact resistance, long lifetime, good elasticity and adhesion, low consumption, good technical effect.

(1)Sandblasting for Shipbuilding

 With grit blasting, oxygenated surface of ship hull is descaled,then improved the coating quality.

(2)Castings Surface Pre-treatment

Steel grit can also be used for surface pre-treatment,cleaning and descaling for casting parts.

(3)Bridge and Steel Construction

 Pre-treatment and descaling for metal surface,increasing coating quality and antisepsis ability.

(4)Cleaning 

 Blast cleaning, forging, casting deoxidization, cleaning H section steel, stainless steel structure.

(5)Derusting 

 Casting rust, forgings, rust removing, iron removal, steel derusting, h-steel derusting, steel structure derusting.

(6)Reinforcement

Heat treatment part shot shot strengthening, gear shot strengthening.

SAE	Application
G-12 G-14 G-16	Blasting/descaling medium-to-large cast steel, cast iron, forged pieces,steel plate and rubber adhered work pieces.
G-18 G-25 G-40	Cutting/grinding stone; Blasting rubber adhered work pieces; Descaling steel plate, container, ship hall before painting; Cleaning small-to-medium cast steel, cast iron, forged pieces, etc.
G-50 G-80 G-120	Blasting/descaling steel wire, spanner, steel pipe before painting process; Cleaning precision castings (eg. golf blocks)

Company Profile

What does Jinan Junda Industrial Technology Co., Ltd. do?

Jinan Junda Industrial Technology Co., Ltd. is a manufacturer and supplier specializing in sandblasting abrasives and equipment, as well as surface treatment solutions. Established in 2005, the company produces a range of products including Steel Shot, Steel Grit, Garnet Sand,Glass Beads,Copper Slag,Brown Fused Alumina, White Fused Alumina,Black Silicon carbide powder,Forged Steel Ball,Cast Steel Ball,Chrome Steel Ball,Carbon Steel Ball,Stainless Steel Ball,Paint Sprayer Machine,Air Compressor,Air Storage Tank,Sandblasting machines, and related spare parts. It also offers customized engineering support, OEM/ODM services, and holds international certifications such as ISO 9001 and CE. Serving clients worldwide across industries like surface preparation and corrosion control, Jinan Junda is recognized for its quality products, professional service, and competitive pricing.

In addition, we have obtained lS0 901 certification, CE certification, and KOC certification. Selling well in all cities and provinces around China,our products are also exported to clients in more than 100 countries and regions as the USA,Canada, Chile, Peru, Argentina, Australia, Germany, UK, Denmark, Norway,Russia,Saudi Arabia,Japan, Malaysia and South Africa. We also welcome OEM and ODM orders. Whether selecting acurrent product from our catalog or seeking engineering assistance for your application, you cantalk to our customer service center about your sourcing requirements.

What is the quality of service and support provided by Jinan Junda Industrial Technology Co., Ltd.?

We are located in Jinan with convenient transportation access.Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements to ensure full customer satisfaction in many different Sand Blasting,Surface Preparation, and Corrosion Control industries.

Adhering to the business principle of mutual benefits, we have a reliable reputation among ourcustomers because of our professional services, quality products and competitive prices. We warmly welcome customers from at home and abroad to cooperate with us for common success.

Certifications

Which certifications has our company obtained?

Our operations and products are backed by key international certifications, including ISO 9001 for quality management, CE for the European market, and KOC for South Korea. These credentials are not just badges of compliance but essential enablers of our global reach, supporting our exports to a network of over 100 countries and reinforcing our clients' trust in our professional standards.

Packaging & Shipping

FAQ

Q1. What is the mode of your payment?

T/T: 50% advance payment and the rest 50% payment oay us when you get the scanned B/L from our E-mail.
L/C:100% irrevocable L/C at sight.

Q2. What's the MOQ of your product?

As usual MOQ is 5TONS.Or as your require, we need to calculate the new price to you.

Q3. Can you provide the free samples?

Yes, we can send free samples less than 500g to you. Normally, we can send samples to customer by
express, such as DHL,TNT,Fedex,Aramex, etc.

Q4. What atandars you carring out for your products?

SAE standard and ISO9001, SGS.

If any need, please do not hesitate to contact us. 

We are well aware that a satisfactory shopping experience is not only dependent on excellent product quality, but also requires thoughtful and reliable after-sales service.
From the moment you chose us, we have embarked on a long-term commitment and protection.No matter what problems you encounter, our after-sales team will provide you with efficient and prompt solutions with a warm and patient attitude. Your satisfaction is our eternal pursuit.