Ra value classification: Ra≤0.8μm (industrial grade), Ra≤0.4μm (sanitary grade), Ra≤0.2μm (mirror grade) are provided.
304 stainless steel mirror pipe corrosion resistance: passivation treatment after polishing, Cr₂O₃ oxide film thickness increased by 30%, salt spray test over 1000 hours. Comply with ASTM A312, EN 10312, GB/T 12771 standards, passed FDA, EC 1935/2004 food contact certification.
304 Stainless Steel Electropolished Pipe mechanical properties: tensile strength ≥515MPa, elongation ≥40%, can withstand high pressure (up to 20MPa) and cold processing.
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Material Grade: 304 (ASTM A312/A270, EN 10312, GB/T 12771)
Surface Finish: Mirror Polished (Ra ≤ 0.2μm), Sanitary Finish (Ra ≤ 0.4μm), Industrial Finish (Ra ≤ 0.8μm)
| Parameter | Range | Tolerance |
|---|---|---|
| OD (Outer Diameter) | 6 mm – 610 mm (0.236" – 24") | ±0.5% (ASTM A269) |
| Wall Thickness | 0.5 mm – 25 mm (0.02" – 0.98") | ±10% (ASTM A269) |
| Length | Standard: 6 m, 12 m; Customizable up to 18 m | ±5 mm (ASTM A269) |
| Process | Ra Value | Characteristics | Applications |
|---|---|---|---|
| Mirror Polishing | ≤0.2μm | High reflectivity, particle-free surface | Semiconductor, medical devices |
| Electropolishing | ≤0.4μm | Smooth, crevice-free finish | Pharmaceutical, food processing |
| Industrial Polishing | ≤0.8μm | Uniform matte surface | General industrial use |
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