Steel Shot
High quality steel shot solutions for shot blasting and shot peening applications
Shot Classes
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Standard Steel Shot
Standard hardness (40-51 HRC) steel shot for general purpose surface cleaning and shot peening applications.
Size and Hardness Table
| Grade | Nominal Size (mm) | Hardness (HRC) | Density (g/cm³) |
|---|---|---|---|
| S110 | 0.3 | 40-51 | ≥7.0 |
| S170 | 0.4 | 40-51 | ≥7.0 |
| S230 | 0.6 | 40-51 | ≥7.0 |
| S280 | 0.7 | 40-51 | ≥7.0 |
| S330 | 0.8 | 40-51 | ≥7.0 |
| S390 | 1.0 | 40-51 | ≥7.0 |
| S460 | 1.2 | 40-51 | ≥7.0 |
| S550 | 1.4 | 40-51 | ≥7.0 |
| S660 | 1.7 | 40-51 | ≥7.0 |
| S780 | 2.0 | 40-51 | ≥7.0 |
Key Features
- Hardness: 40-51 HRC
- Spherical form (90%+ sphericity)
- Homogeneous particle distribution
- Low breakage rate
- Long service life
- Compliant with SAE J827 standard
Applications
- Casting cleaning
- Steel structure shot blasting
- Ship hull cleaning
- Automotive part surface preparation
- Pipe internal/external surface cleaning
- General industrial shot blasting
Technical Notes
- Sized according to SAE J444 classification.
- Operating mix formation is recommended.
- Machine speed and shot size must be compatible.
- Regular sieve analysis for size control is required.
- Moisture content should be kept below 0.1%.
Related Sectors
Useful Calculation Tools
Detailed Technical Information and Quotation
Contact our expert team for detailed technical documents, application recommendations, and custom size quotations regarding this product type.
Get Technical SupportWhat is steel shot?
Steel shot is a spherical cast steel abrasive used in shot blasting and shot peening. It is produced in sizes S110–S780 (roughly 0.3–2.0 mm); standard hardness is 40–50 HRC, with high-carbon hard grades reaching 55–62 HRC. Chemistry, hardness and microstructure follow SAE J827; size classification follows SAE J444.
Shot vs grit and size selection
Spherical steel shot works the surface by peening: it removes scale and sand, cleans without roughening, and in shot peening raises fatigue strength by inducing compressive stress. Angular steel grit cuts the surface instead — preferred where a coating anchor profile is needed before painting. Size selection follows the job: fine shot (S110–S230) gives more impact points and faster coverage; coarse shot (S330–S780) carries higher impact energy for thick scale and heavy parts. In wheel-blast machines steel shot is recycled for thousands of cycles; the operating mix is maintained by regular screening. Cast shot reaches its tempered-martensite structure by quench and temper and ships with fully traceable certificates.
Frequently Asked Questions
What is the difference between steel shot and grit?+
Shot is spherical and peens the surface (cleaning, peening); grit is angular and cuts, creating the anchor profile needed before painting or coating. The application goal decides which to use.
Which shot size for which job?+
Fine sizes (S110–S230) for fast coverage and delicate surfaces; medium (S280–S390) for general descaling; coarse (S460–S780) for thick scale, castings and heavy steel fabrication.
Which standards cover steel shot?+
Chemistry, hardness and microstructure per SAE J827; size distribution and screening classes per SAE J444. Standard-grade hardness is 40–50 HRC.
How many times can steel shot be reused?+
Thousands of cycles in wheel-blast machines — far lower consumption than mineral abrasives. Broken particles are screened out and the operating mix is balanced with fresh shot.
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