Thin wall & ultra thin wall seamless tube refer to the ratio of wall thickness and outer diameter less than 6% seamless tube. They are generally formed by intermediate annealing and multi-pass cold rolling of two or three high mills. Small outer diameter can be obtained by reducing the wall drawing process. According to customer's special surface requirements, the tubes can be polished by different processes.
Our company's precision thin wall seamless tube and ultra thin wall seamless tube mainly has the following characteristics：
1. High dimensional accuracy, free cutting.
2. OD tolerance can reach±0.05mm
3. WT tolerance can reach ±0.01mm
4. Smooth surface, precision cold rolling internal and external surface roughness can reach Ra0.4μm.
5. Smooth surface, after different polishing process, the internal roughness can reach Ra0.1μm.
6. The tube wall is thin and uniform with good concentricity.
7. Out of roundness: within 0.3mm for OD6~25mm, within 0.5mm for OD26~57mm, within 1.0mm for OD58~105mm.
8. Stable performance, excellent corrosion resistance, pressure resistance, durable strength and plasticity.
