| Quantity: | |
|---|---|
GH
72051000
Introduction
GH series steel grit is a premium high-carbon and high hardness angular cast steel grit. It is the highest hardness grade product in GP and GL series steel grit. Manufactured with precise alloy proportion plus deep quenching & cryogenic tempering, its naturally multi-angular grain delivers exceptional cutting power. Designed for heavy-duty rust stripping, deep anchor profiling, high-adhesion substrate pre-treatment and shot peening strengthening of hard workpieces, applicable for hook-type blast machines, trolley blast equipment and enclosed high-pressure blast rooms.
Typical Specification
Main Size (GH Series) | |||||
| G16 | G18 | G25 | G40 | G50 | G80 |
| Chemical Composition | |||||
| C | Si | Mn | P | S | / |
| 0.7-1.2 | ≥0.4 | 0.35-1.2 | ≤0.05 | ≤0.05 | / |
| Hardness | Denisty | Apparent Density | |||
| HRC60-64 | ≥7.6g/cm3 | 4.2g/cm3 | |||
Key Advantages
1. Outstanding cutting capacity: Super-high hardness plus permanent angularity strips heavy scale, thick rust and aged coating over 30% faster than GL grade;
2. Ideal anchor pattern: Forms uniform 2.0~4.5mil anchor texture to maximize coating adhesion for heavy-duty anti-corrosion coatings such as high-build epoxy and glass flake;
3. Dual blasting compatibility: Suitable for high-pressure air blasting as well as full-automatic steel plate pre-treatment lines for bulk plates and heavy irregular castings;
4. Eco-friendly low dust: Much less airborne dust than natural mineral sand to satisfy environmental regulations.
Application Fields
1. Heavy industry & shipbuilding: Pre-blasting for wind tower, bridge steel, container and hull structure for heavy anti-corrosion projects;
2. Mechanical component peening: Shot peening on auto gears, leaf springs and heat-treated high-strength parts to release surface stress and improve fatigue resistance;
3. Pressure vessel & pipeline: Descaling internal & external surfaces of storage tanks and oil & gas transmission pipelines to meet pressure-resistant anti-corrosion anchor requirements;
4. Stone & roller processing: Bush-hammer finish for granite, surface dressing of cold rolling rollers and mold texturing;
5. Locomotive industry: Rust removal for train frames and engineering machinery chassis.
Selection Tip:
Coarse GH10/GH12 for ultra-thick steel plate & heavy casting with deep anchor demand;
Medium GH14~GH25 as mainstream for steel structure, ship and pressure vessel;
Below GH40 for precision parts, molds and thin sheet fine blasting.
