Cast steel shot, also known as steel abrasives, is primarily used for shot blasting of metal workpieces, surface strengthening, and pre-treatment for coating. It is applied in processes such as casting sand removal, steel plate rust removal, and gear strengthening. Leveraging its high resilience and wear resistance, it can improve processing efficiency while reducing equipment wear, achieving surface cleanliness up to GB/T8923-1989 standards. It is widely used in aerospace, automotive manufacturing, shipbuilding, and steel structure processing.
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Product name |
Cast Steel Shot |
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Chemical Composition |
C |
0.8%-1.2% |
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Mn |
0.35%-1.2% |
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Si |
≥0.4-1.2% |
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S |
≤0.05% |
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P |
≤0.05% |
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Microstructure |
Tempered martensite or tempered troostite |
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Service time |
2000-2800 times Double Quenched steel shot: 2600-3800 times |
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Average Hardness |
40~50HRC |
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Hardness Deviation |
Max. deviation ±3.0 HRC |
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Density |
≥7.4g/cm3 |
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Bulk Density |
≥4.4g/cm3 |
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S780(2.5mm) S660(2.0mm) |
Sand removal from large castings, oxide scale removal from forgings and heat-treated parts, shot blasting cleaning of steel plates, sections, and structural components, and shot peening for surface strengthening of workpieces. |
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S550(1.7mm) S460(1.4mm) |
Sand removal from large and medium-sized castings; oxide scale removal from forgings and heat-treated parts; rust removal and pre-painting treatment of steel plates, sections, pipes, and structural components; shot blasting and shot peening of workpiece surfaces; stone sawing. |
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S390(1.2mm) S330(1.0mm) |
Sand removal for small and medium-sized castings; rust removal and pre-painting treatment for forgings, heat-treated parts, steel plates, steel pipes, structural steel sections, and structural steel parts; shot blasting and shot peening for workpiece surfaces; stone sawing. |
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S280(0.8mm) S230(0.6mm) |
Sand removal for small precision castings; rust removal and pre-painting treatment for forgings, heat-treated parts, steel plates, steel pipes, structural steel sections, and structural steel parts; shot blasting and shot peening for workpiece surfaces; rust removal and shot blasting for forgings, heat-treated parts, aluminum alloys, copper alloy castings, steel plates, steel strips, steel pipes, steel wires, and tools; pre-plating treatment and shot peening. |
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S170(0.5mm) S110(0.3mm) S70(0.2mm) |
Surface pretreatment of stainless steel sheets, thin steel sheets, and non-ferrous alloy parts; wire strengthening treatment; Dacromet sandblasting pretreatment. |
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S930/SS3.0 |
S780/SS2.5 |
S660/SS2.0 |
S550/SS1.7 |
S460/SS1.4 |
S390/SS1.2 |
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S330/SS1.0 |
S280/SS0.8 |
S230/SS0.6 |
S170/SS0.5 |
S110/SS0.3 |
S70/SS0.2 |
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Specification of Cast Steel Shot |
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Mesh |
mm |
S930/SS3.0 |
S780/SS2.5 |
S660/SS2.0 |
S550/SS1.7 |
S460/SS1.4 |
S390/SS1.2 |
S330/SS1.0 |
S280/SS0.8 |
S230/SS0.6 |
S170/SS0.5 |
S110/SS0.3 |
S70/SS0.2 |
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6 |
3.35 |
0%max |
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7 |
2.8 |
- |
0%max |
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8 |
2.36 |
90%min |
- |
0%max |
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10 |
2 |
97%min |
85%min |
- |
0%max |
0%max |
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12 |
1.7 |
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97%min |
85%min |
- |
5%max |
0%max |
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14 |
1.4 |
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97%min |
85%min |
- |
5%max |
0%max |
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16 |
1.18 |
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97%min |
85%min |
- |
5%max |
0%max |
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18 |
1 |
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96%min |
85%min |
- |
5%max |
0%max |
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20 |
0.85 |
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96%min |
85%min |
- |
10%max |
0%max |
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25 |
0.71 |
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96%min |
85%min |
- |
10%max |
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30 |
0.6 |
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96%min |
85%min |
- |
0%max |
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35 |
0.5 |
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97%min |
- |
10%max |
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40 |
0.425 |
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85%min |
- |
0%max |
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45 |
0.355 |
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97%min |
- |
10%max |
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50 |
0.3 |
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80%min |
- |
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80 |
0.18 |
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90%min |
80%min |
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120 |
0.125 |
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90%min |
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