Polished 304 Stainless Steel Tubing
Surface Treatment：Polished
Section Shape;Round
Technical Standard:Cold Rolling / Hot Rolling
Thickness:0.1-60mm or Customized
Outer Diameter:6-1200mm or Customized
Product Description
GNEE specializes in the production of polished 304 stainless steel tubes. It adopts multi-pass precision polishing process, and the surface finish can reach Ra≤0.2μm (mirror grade). It is widely used in food machinery, medical equipment, semiconductor clean rooms and other fields with extremely high requirements for cleanliness. It supports customized sizes and special surface treatment.
Mirror polished 304 stainless steel pipe surface effect
Advantages of SS UNS S30400 Polished Pipe
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.
Click to learn about the price and technical parameters of 304 stainless steel pipe!
Polished 304 Stainless Steel Pipe Specifications
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)
Dimensions & Tolerances
| 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) |
Surface Treatment
| 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 |
Reasons to choose GNEE
Leading technology: Polishing equipment imported from Germany, with precision control of ±0.05mm.
Cost advantage: The automation rate of polishing process reaches 90%, and the price is 20% lower than similar products in Europe.
Professional certification: Passed ISO 9001, ISO 13485 (medical equipment), SGS third-party testing.
Professional polishing 304 stainless steel pipe manufacturer
FAQ
Q. Can you provide samples?
A.We can provide them for free, you need to bear the shipping cost.
Q: Do you have quality control?
A: Yes, we have obtained BV and SGS certification.
Q: Can you arrange shipment?
A: Of course, we have a fixed freight forwarder, can get the best price from most shipping companies, and provide professional service.
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