Steel Grit
Steel Grit G12-G120 | High-carbon steel angular abrasive, hardness GP 46-50 / GL 56-60 / GH 63-65 HRC, SAE J444/ISO 1112
1 / 5Quick Product Summary
- Material: High Carbon Steel
- Hardness: HRC46-50(GP) / HRC56-60(GL) / HRC63-65(GH)
- Sizes: G12 - G120 (0.2mm - 3.5mm)
- Shape: Angular
- Density: 7.8 g/cm³
- Standards: SAE J444, ISO 11126
- •Shipbuilding & Repair
- •Bridge Maintenance
- •Steel Structure Cleaning
- •Pipeline Coating Prep
Product Description
Steel Grit G12-G120 | High-carbon steel angular abrasive, hardness GP 46-50 / GL 56-60 / GH 63-65 HRC, SAE J444/ISO 11126 compliant. Sharp edges deliver superior cleaning efficiency & surface profiling. For shipbuilding, bridges & heavy industry. 0.2-3.5mm, three hardness grades.
Steel grit is produced by crushing steel shot into angular particles. Its sharp edges provide excellent cleaning efficiency and surface profiling. Widely used in shipbuilding, bridge construction, and heavy industrial maintenance. Three hardness grades match different substrate requirements — GP for general cleaning, GL for high-strength steel descaling, GH for ultra-hard surface treatment.
Production Video
Applications
Core Technical Advantages
Secondary Quenching Process
After primary centrifugal quenching, we apply a second hardening cycle. This creates a denser microstructure, significantly inhibiting carbon deviation. The result: 1.3× longer service life, lower breakage rate, less dust, better elasticity and faster cleaning speed.
Cost Efficiency
Thanks to secondary quenching, our steel grit delivers 30% longer operational life than conventional cast grit. For high-volume blasting operations, this translates directly into lower media consumption, reduced downtime and significant total cost savings.
Manufacturing Process
8-step controlled production — from raw steel to finished abrasive media, every stage is engineered for consistency.
Smelting
Electric Arc Furnace
Adjust steel composition to reduce harmful sulfur and phosphorus content.
Refining
Ladle Refining
Further purify molten steel to ensure superior material quality.
Granulation
Centrifugal Casting
High-speed centrifugal forming controls shape quality and minimizes physical defects.
Selection
Defect Separation
Remove hollow or deformed particles to improve shot density and uniformity.
Quenching
Secondary Hardening
Double quenching refines grain structure, enhancing toughness and inhibiting carbon deviation.
Tempering
Precision Heat Treatment
Precise temperature and time control achieve optimal hardness uniformity across batches.
Crushing
Grit Production
Unique crushing process improves grit fullness and angularity while minimizing internal cracks.
Fine Sieve
SAE J444 Grading
Precision screening guarantees every batch meets American SAE-J444 standard.
Why Choose LuXing Metal?
Quality Assurance Laboratory
Every production batch is verified by 5 types of precision instruments before leaving the factory. Test standards aligned with ASTM E92, GB/T4340.2 and ISO 6507-2.
Hardness Tester
ASTM E92 · GB/T4340.2Friction-free spindle with automated testing. Precision micrometer system eliminates human error. Compliant with ASTM E92, GB/T4340.2 and ISO 6507-2.
Metallographic Microscope
MicrostructureIdentifies and analyzes the microstructure of metals and alloys. Validates raw material quality and verifies post-treatment microstructure integrity.
Multi-Element Analyzer
Si · Mn · P · Cr · NiDetects Si, Mn, P, Cr, Ni, Mo, Cu, Ti in cast iron, stainless steel, carbon steel and alloy steel. Fast and accurate multi-element screening.
Carbon & Sulfur Analyzer
High-Tech IntegrationOptical-mechanical-electrical-computer integrated system. Wide measuring range, strong anti-interference, accurate and reliable C/S determination.
Fatigue Testing Machine
80 m/s · 200g SampleSimulates real blasting conditions at 80 m/s centrifugal speed with 200g samples. Sieving-recycling loop measures actual shot durability under production stress.
Size Selection Guide
Match a model to your application at a glance
| Model | Nominal Size | Recommended Application |
|---|---|---|
| G120 | 0.2mm | Fine-grade surface profiling & cleaning |
| G80 | 0.3mm | General rust removal & coating prep |
| G50 | 0.5mm | Medium aggressive rust removal, water jet cutting |
| G40 | 0.7mm | Shipbuilding & steel structure treatment |
| G25 | 1.0mm | Heavy rust removal & profiling |
| G16 | 1.5mm | Thick coating stripping & heavy industrial cleaning |
| G12 | 2.0mm | Extra-large grit for maximum cutting power |
- G1200.2mm
Fine-grade surface profiling & cleaning
- G800.3mm
General rust removal & coating prep
- G500.5mm
Medium aggressive rust removal, water jet cutting
- G400.7mm
Shipbuilding & steel structure treatment
- G251.0mm
Heavy rust removal & profiling
- G161.5mm
Thick coating stripping & heavy industrial cleaning
- G122.0mm
Extra-large grit for maximum cutting power
Click to view detailed specifications for each model
Specification Size Gallery
From G12 to G80, full series angular steel grit overview. Sharp edges, aggressive cleaning — compare sizes at a glance.
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Specifications
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Frequently Asked Questions
What is the difference between steel shot and steel grit?›
Steel shot is spherical, ideal for precision cleaning and shot peening. Steel grit is angular with stronger cutting force, suitable for aggressive rust removal and surface profiling. Choose based on your workpiece requirements.
Steel Shot · Steel Grit · Deep-dive comparison
What is steel shot and what is it used for?›
Steel shot is a spherical metallic abrasive manufactured through atomization. It's primarily used for shot blasting, shot peening, and surface preparation. It removes scale, rust, and old coatings while enhancing metal surface fatigue strength.
→ View Steel Shot S70-S780 product specs & selection guide