Capillary Tube
Twin ferrule tube, also known as instrument tubing for double-ferrule compression fittings, is manufactured with precise outer diameter tolerance and excellent surface quality to ensure leak-free connections. It is widely used in pneumatic, hydraulic and instrumentation systems, especially in petrochemical, natural gas and semiconductor plants.
| Parameter | Value |
| Product Name | Capillary Tube (Twin Ferrule Tube) |
| Material | 304, 304L, 316L, 316Ti, 321, 347H, 310S, 904L, 2205, 2507, 2520, C276 |
| Outer Diameter | 6mm–89mm / 6.35mm–88.9mm |
| Wall Thickness | 0.2mm–6mm / 0.89mm–4.78mm |
| Shape | Round Tube |
| Density | 7.93 g/cm³ (304/304L/321), 7.98 g/cm³ (310S/316/316L) |
| Application | Machinery, Automobile manufacturing, Semiconductor, Photovoltaic, Instrumentation, Hydraulic equipment, Food industry, Aerospace, Petrochemical, Pressure vessels, Heat exchangers, Automation etc. |
| Tolerance | ±0.05mm (limit ±0.02mm) |
| Length | 1000mm–12000mm (custom lengths available) |
| Surface Finish | External Ra0.6μm / Internal Ra0.4μm |
| Tensile Strength | ≥626–1270 MPa |
| Elongation | ≥40%–65% |
| Hardness | HRC 16–38 / HV 160–400 |
| Yield Strength | ≥300–1020 N/mm² |
| Process | Cold rolling |
| Features | High precision |
| Weight Calculation | Per piece or by weighing |
| Brand | SUNLIGHT STEEL |
| Sales Type | Order / Stock |
| Delivery | To designated location |
| Machining | Yes |
