International Standards and Material Codes
| GB/T | AISI | EN | JIS |
|---|---|---|---|
| 304 | 304 | 1.4301 | SUS304L |
Chemical Composition
| C | Si | Mn | P | s | Cr | Ni | |
|---|---|---|---|---|---|---|---|
| 304 | ≤0.07% | ≤1.00% | ≤2.00% | ≤0.045% | ≤0.03% | 17.0-19.0% | 8.0-10.5% |
| 304L | ≤0.03% | ≤1.00% | ≤2.00% | ≤0.045% | ≤0.03% | 18.0-20.0% | 8.0-12.0% |
304/304L Stainless Steel Ball Physical Properties
| Item | Parameters | ||||
|---|---|---|---|---|---|
| Tensile strength | 100,000 to 180,000 psi | ||||
| Yield strength | 50,000 to 150,000 psi | ||||
| Elongation | 55 to 60% | ||||
| Elastic modulus | 29,000,000 psi | ||||
| Density | .286 lbs/cubic inch | ||||
Grade: G100 to G1000
| Ball diameter variation | Spherical deviation | Surface roughness | Diameter variation | Diameter tolerance | |
|---|---|---|---|---|---|
| Gade | Vdws | △Sph | Ra | Vdwl | Tdn |
| Not Over | |||||
| μm | |||||
| 40 | 1 | 1 | 0.08 | 2 | * |
| 60 | 1.5 | 1.5 | 1 | 3 | * |
| 100 | 2.5 | 2.5 | 0.1 | 5 | ±12.5 |
| 200 | 5 | 5 | 0.15 | 10 | ±25 |
| 500 | 12.5 | 12.5 | * | 25 | ±50 |
| 1000 | 25 | 25 | * | 50 | ±125 |
304 stainless steel balls are known for their excellent corrosion resistance and complete non-magnetic properties, making them suitable for the food, chemical, and medical industries.
Their lower hardness makes them suitable for low-wear applications, but they are not resistant to strong acids.
Their high precision and cost-effectiveness make them widely used in roller-ball bottles and valves.
Changzhou Risheng Steel Ball Co., Ltd. is located on the eastern shore of Taihu Lake, adjacent to Shanghai, with convenient transportation. Since its establishment in June 1995, the company has been dedicated to developing and manufacturing steel balls, integrating research and development with trade.
For many years, Risheng building on the foundation of the Wujin Metal Ball Research Institute, has been committed to researching steel ball manufacturing technology. We primarily produce shaft steel balls (AISI 52100), stainless steel balls (AISI 201/304/316/420/440/430), and carbon steel balls (AISI 1015/1045/1085) with diameters ranging from 0.8mm to 25.4mm, with precision grades up to G10, G40, and G100. We also offer custom specifications for alloy steel balls, military steel balls, copper balls, UFO balls, ceramic balls, and other metal balls.
High-strength inner packaging: Shockproof foam bags or custom plastic boxes are used to secure each 304/304L stainless steel ball in place, protecting it from impacts and scratches.
Moisture-proof protection: A moisture-proofing agent is added to effectively prevent the impact of moisture on the product during transportation.
Sturdy outer packaging: Thickened corrugated cardboard boxes or wooden pallets (for large orders) are used to ensure safe long-distance transportation.
Clear labeling: Product specifications, quantity, and drop warnings are clearly marked on the outer packaging box for easy verification and safe handling.
304 stainless steel balls are solid spheres crafted from grade 304 stainless steel, known for its excellent corrosion resistance and formability. They are used in bearings, valves, grinding media, and decorative applications.
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