Specification:14-426*1.5-60;
Materials:410, 490 and 440
Standard:GB/T5312-1999 (hot rolling, extrusion and pipe expanding)
Marine pipe also called ship tube is mainly utilized in shipbuilding. Compared to other seamless steel pipes (like 20#, 45#), marine pipe performance has very high corrosion resistance, high pressure resistance and high temperature resistance. The main materials are 410, 490 and 440; the executive standard is GB/T5312-1999 (hot rolling, extrusion and pipe expanding), Scope of general specification is 14-426*1.5-60.
Marine Pipe
Dimension Tolerance of Marine Pipe
| Tolerance Level | Allowed Tolerance |
|---|---|
| D1 | ±1.5%, Min. ±0.75 mm |
| D2 | ±1.0%, Min. ±0.50 mm |
| D3 | ±0.75%, Min. ±0.30 mm |
| D4 | ±0.75%, Min. ±0.30 mm |