| Quantity: | |
|---|---|
S170 S280 S330 S390
72051000
SEPPE Cast Steel Shot is a round metallic abrasive used for shot blasting, surface cleaning, oxide scale removal, foundry casting cleaning, shot peening and matte surface finishing. Compared with angular steel grit, steel shot cleans mainly by impact, helping achieve a uniform surface while reducing aggressive cutting scratches on the workpiece.
Product: High carbon cast steel shot for shot blasting and metal surface treatment
Other Names: Steel Shot, Cast Steel Shot, Shot Blasting Steel Shot, Metal Abrasive
Standard Reference: SAE J444 / SAE J827 / GB/T 18838
Typical Sizes: S70, S110, S170, S230, S280, S330, S390, S460, S550, S660, S780
Manufacturer of Material: SEPPE TECHNOLOGIES
▸ Steel shot is a spherical cast steel abrasive produced by melting selected steel raw material, centrifugal atomization, heat treatment, screening and classification.
▸ The round particle shape provides repeated impact cleaning, making it suitable for removing rust, oxide scale, casting sand and surface contamination.
▸ Steel shot is commonly used in wheel blasting machines, hook-type shot blasting machines, tumble belt machines, steel plate pre-treatment lines and shot peening equipment.
▸ Uniform Round Shape: Helps create a consistent matte surface and stable shot peening effect.
▸ Controlled Hardness: Regular steel shot is typically 40-50 HRC, with special hardness grades available for stronger cleaning or peening needs.
▸ Long Recycling Life: Tempered martensite / troostite microstructure supports repeated recycling and lower abrasive consumption.
▸ Low Dust Generation: Compared with disposable mineral abrasives, steel shot can be recycled in enclosed blasting systems with lower dust output.
▸ Wide Size Range: Fine sizes are used for small parts and thin plates; coarse sizes are used for castings, heavy plates and stronger impact cleaning.
| Size Range | Typical Application | Selection Logic |
|---|---|---|
| S70 / S110 / S170 | Small parts, thin plates, precision castings, light surface finishing | Fine surface, lower impact mark, better for delicate workpieces |
| S230 / S280 / S330 | General steel structures, common shot blasting lines, regular rust removal | Most universal range for balanced cleaning speed and surface finish |
| S390 / S460 | Foundry castings, medium-thick plates, machinery parts | Stronger impact energy for heavier workpieces |
| S550 / S660 / S780 | Large castings, heavy plates, strong shot peening or heavy cleaning | High impact cleaning where workpiece thickness allows |
| Chemical Composition | C: 0.80-1.20%; Mn: 0.35-1.20%; Si: >=0.40%; S: <=0.05%; P: <=0.05% |
| Average Hardness | Regular: 40-50 HRC; Special: 52-56 HRC / 56-60 HRC |
| Hardness Tolerance | +/- 3.0 HRC max |
| Ervin Life Cycle | Approx. 2000-2800 cycles, depending on grade and working condition |
| Microstructure | Uniform tempered martensite / troostite |
| Density | 7.4 g/cm3 |
| Apparent Density | 4.4 g/cm3 |
▸ Scrap steel management - induction furnace melting - centrifugal atomization - drying - screening - quenching - shot screening - tempering - final screening - packaging.
Raw material management Induction furnace operation Quenching line Screening & packaging line
▸ Intermediate stock is separated before final screening and packaging, helping keep different batches, sizes and processing stages traceable.
▸ Each production lot can be tested for chemical composition, hardness, density, microstructure, particle size distribution and Ervin life cycle.
▸ Testing equipment includes Ervin fatigue life testing machine, SPECTRO optical emission spectrometer, metallographic microscope, Vickers microhardness tester and carbon-sulfur analyzer.
▸ COA, sieve analysis report, retained sample support and SGS pre-shipment inspection can be arranged according to order requirements.
▸ Standard package: 25 kg PE/PP woven bags, jumbo bags and palletized export package can be selected according to order quantity.
▸ Loading inspection: bag condition, label information, loading protection and shipment marks can be checked before delivery.
▸ Warehouse and handling: finished goods are staged by batch, and jumbo bags can be handled for full-container loading.
Finished Goods Staging 
Jumbo Bag Handling
▸ Typical 20'GP loading quantity is about 25-27 MT for steel shot or steel grit. Stock items are usually prepared within 7-15 days; customized production may require 20-30 days.
▸ Steel shot is used for shot blasting, rust removal, oxide scale removal, foundry sand cleaning, shot peening, surface strengthening and matte finishing of metal parts.
▸ Steel shot is round and cleans mainly by impact. Steel grit is angular and cleans mainly by cutting, so it is more suitable for aggressive rust removal and deeper anchor profile.
▸ S280 and S330 are commonly selected for general steel structure blasting and regular metal surface treatment. Final size should be confirmed according to workpiece thickness, rust level and required surface finish.
Contact SEPPE for steel shot size selection, hardness requirement, COA, samples, packaging and bulk order support.
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