Stainless Steel Shot

Product Specification: Stainless Steel Shot

1. Product Overview
Stainless Steel Shot is a high-quality, non-ferrous metallic abrasive designed for the surface treatment of non-ferrous metals, stainless steel, and precision components. Unlike conventional cast steel shot, stainless steel shot offers superior corrosion resistance, ensuring that the workpiece remains rust-free and maintains its intrinsic metallic luster after blasting. It is widely used for cleaning, deburring, peening, and achieving a satin finish.

2. Key Characteristics
*   Appearance: Bright, lustrous, spherical or cylindrical (cut wire).
*   Materials: Primarily austenitic stainless steels, including grades 304, 316, 410, 430, and high-hardness martensitic stainless steel.
*   Corrosion Resistance: Excellent resistance to atmospheric corrosion and oxidation. Prevents "flash rust" on treated parts.
*   Hardness: Moderate to high hardness (typically 240-600 HV / 20-55 HRC), providing a balance between cutting ability and longevity.
*   Structure: Dense microstructure with low porosity, ensuring high durability and recyclability.
*   Surface Finish: Produces a uniform, matte (satin) finish that highlights the natural color of the metal.

3. Manufacturing Process
We produce Stainless Steel Shot using two primary methods to suit different application needs:

*   Cast Stainless Steel Shot:
    *   Raw stainless steel scrap is melted in an electric furnace.
    *   The molten metal is atomized using high-pressure water or air to form droplets.
    *   The droplets solidify into spherical shapes during free fall and are subsequently heat-treated and screened.
*   Cut Wire Shot (Conditioned Cut Wire Shot):
    *   High-quality stainless steel wire is cut into short lengths.
    *   The cylindrical pieces undergo a "conditioning" (abrasive tumbling) process to remove sharp edges and form spherical or sub-spherical shapes.
    *   This method results in a very dense, high-strength abrasive with no internal defects.

4. Available Grades and Specifications
We offer a comprehensive range of grades to meet international standards (SAE, ISO, DIN):

*   By Material Grade:
    *   304 Stainless Shot: General purpose, good corrosion resistance, cost-effective.
    *   316 Stainless Shot: Higher corrosion resistance due to Molybdenum content; ideal for marine environments and harsh chemical conditions.
    *   400 Series (410, 430): Magnetic grades with higher hardness, suitable for specific peening applications.
*   By Size (Diameter):
    *   Fine: 0.1mm - 0.3mm (for precision cleaning and polishing).
    *   Medium: 0.3mm - 1.0mm (for general deburring and descaling).
    *   Coarse: 1.0mm - 3.0mm (for heavy cleaning and shot peening).
    *   (Common designations: S0.3, S0.6, S1.0, S2.0, etc.)
*   By Shape:
    *   SSP (Spherical): For polishing and peening.
    *   SSC (Cut Wire): For aggressive cleaning and roughening.

5. Primary Applications
Stainless Steel Shot is the preferred media for:

*   Non-Ferrous Metal Cleaning:
    *   Aluminum, zinc, copper, and magnesium die-castings. It prevents the embedment issues often caused by cast steel shot.
*   Stainless Steel Fabrication:
    *   Cleaning and descaling of stainless steel welds, pipes, and plates without introducing iron contamination.
*   Precision Engineering:
    *   Deburring and edge radiusing of precision hardware tools, molds, and medical devices.
*   Surface Peening:
    *   Improving the fatigue strength of springs, gears, and aircraft components.
*   Decorative Finishing:
    *   Creating a uniform, non-directional matte finish on architectural hardware and consumer electronics.

6. Advantages
*   Rust-Free Performance: Eliminates the need for post-blasting anti-rust treatment.
*   High Brightness: Leaves the workpiece surface bright and clean.
*   Long Life: High density and toughness result in a long service life and low consumption rates.
*   Environmental: Non-toxic and chemically stable; reduces the need for acid pickling processes.

7. Packaging and Storage
*   Packaging: 25kg kraft paper bags with moisture-proof liner, 1000kg Jumbo bags (FIBC), or steel drums.
*   Storage: Store in a dry, indoor warehouse. Protect from rain and direct contact with the ground to prevent moisture absorption.

For detailed technical data sheets (TDS), Material Safety Data Sheets (MSDS), or sample requests, please contact our sales department.