Key Information Summary
Secondary quenched steel shot offers an extremely long service life.
Its internal structure is tough, while the external structure is hard, providing exceptional resistance to impact and breakage. As a result, it is less prone to shattering and pulverization during repeated surface treatment of workpieces, thereby reducing consumption rates.
Stable Hardness and Excellent Toughness
The secondary quenching process gives it an ideal combination of hardness and toughness. The high hardness ensures efficient cleaning and cutting capabilities, while the high toughness prevents premature breakage under high-speed impact, maintaining consistent performance. This is unmatched by ordinary cast steel shot and single-quenched steel shot.
Clean Surface and High Safety
In shot blasting and peening cleaning processes, it produces a more uniform, dense, and aesthetically pleasing surface roughness and cleanliness. Its consistent and repeatable compressive stress field allows for precise control of the strengthening process, significantly improving the fatigue resistance of workpieces and ensuring the safety and reliability of critical components. Additionally, its extremely low breakage rate means less dust is generated in shot blasting equipment. This reduces wear on vulnerable parts such as blast wheel blades and protective liners, extends equipment service life, and lowers maintenance costs. It also improves the working environment, complying with environmental protection and occupational health and safety (EHS) requirements.
Shengxiang Secondary Quenched Steel Shot is manufactured from high-quality steel and processed through advanced industrial quenching technology, providing enterprises with unmatched ultra-long service life and exceptionally consistent processing results.
It significantly reduces comprehensive consumable costs, minimizes equipment wear, and improves the working environment for enterprises. Ultimately, it ensures the highest consistency and reliability in workpiece surface treatment quality, making it the most economical and efficient choice for high-end industrial surface treatment and strengthening applications.
Double Quenched Steel Shot Indicators
| Sample | Double Quenched Steel Shot | Chemical Elements | C\Si\Mn\S\P |
|---|---|---|---|
| Order | Result Percentage /% | --- | --- |
| C | 0.8–1.2 | --- | --- |
| Si | 0.5-1.2 | --- | --- |
| Mn | 0.6-1.2 | --- | --- |
| S | ≤0.03 | --- | --- |
| P | ≤0.03 | --- | --- |
| Hardness | 43–50HRC | --- | --- |
| Density | 7.4 g/cm³ | --- | --- |
| Metallographic Structure | tempered bainite | --- | --- |
| Fragmentation Rate* | ≤1.5% (after 1000 cycles of impact testing) | --- | --- |
*Tested in accordance with ISO 11124-2 standards.
Hardness vs. Application Matrix
| Hardness (HRC) | Typical Applications | Surface Finish (Ra, μm) |
|---|---|---|
| 50 | Heavy-duty descaling, shot peening of high-strength steel | 12.5–25 |
| 46 | General industrial blasting, automotive component strengthening | 6.3–12.5 |
| 40 | Delicate surface preparation, aerospace part finishing | 3.2–6.3 |
Secondary quenching steel shot index
|
SAMPLES |
Double Quenched STEEL SHOT |
CHEMICAL ELEMENTS |
C\Si\Mn\S\P |
||
|
ORDER |
% RESULT PERCENT |
||||
|
C |
Si |
Mn |
S |
P |
|
|
0.8-0.12 |
0.5-1.2 |
0.6-1.2 |
≤0.03 |
≤0.03 |
|
| HARDNESS |
43-50HRC |
||||
|
DENSITY |
7.4g/cm³ |
||||
|
METALLOGRPHICAL STRUCTURE |
tempered bainite |
||||
User Evaluation
Emma Reed
Quality Manager, PrecisioNex Engineering
Ben Carter
Production Supervisor, AutoDrive Components
Maria Flores
Site Supervisor, Summit Blasting Corp.
Certifications
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This industry
Shengxiang Secondary Quenched Steel Shot is widely used in the following industrial applications for its exceptional durability, consistent performance, and cost-saving advantages:
Surface Cleaning & Preparation
Descaling, rust removal, and paint stripping from metal surfaces
Pre-treatment before coating, plating, or welding
Produces a uniform surface profile with optimal roughness for better coating adhesion
Shot Peening & Surface Strengthening
Induces compressive stress on metal components to improve fatigue resistance
Enhances the service life and reliability of critical parts such as gears, springs, and turbine blades
Used in automotive, aerospace, and heavy machinery manufacturing
Deburring & Finishing
Removes burrs, sharp edges, and contaminants from machined parts
Delivers a smooth, clean, and uniform finish without causing dimensional changes
Foundry & Casting Cleaning
Efficiently removes sand, scale, and residues from castings
Suitable for iron, steel, and non-ferrous metal castings
FAQ
Q1: What is secondary quenched steel shot, and how is it different from ordinary steel shot?
A: Secondary quenched steel shot undergoes an advanced two-step heat treatment process that creates a hard outer layer and a tough inner core. This gives it higher durability, better fracture resistance, and longer service life compared to ordinary cast steel shot or single-quenched alternatives.
Q2: In which industries is Shengxiang Secondary Quenched Steel Shot commonly used?
A: It is widely used in automotive, aerospace, shipbuilding, foundry, and metal processing industries for applications such as surface cleaning, shot peening, descaling, deburring, and surface strengthening.
Q3: How does your steel shot help reduce operating costs?
A: Thanks to its extremely low breakage rate, our steel shot lasts longer and can be reused multiple times. This replaces consumable usage frequency, lowers blasting equipment wear, and reduces dust generation, thereby cutting material, maintenance, and disposal costs.
Q4: Does your product comply with environmental and safety standards?
A: Yes. Our steel shot generates minimal dust during operation, which improves air quality in the workplace and helps meet international environmental protection and occupational health (EHS) requirements.
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