SUS304 Stainless Steel Capillary Tube , Medical Hypodermic Tube For Disposable Syringe
SUS304 Stainless Steel Capillary Tube , Medical Hypodermic Tube For Disposable Syringe
The ISO 9626 SUS304 stainless steel capillary tube (medical hypodermic tube) is a high-precision, small-diameter stainless steel needle tube, specifically designed for manufacturing medical devices. Made from SUS304 austenitic stainless steel (equivalent to AISI 304 / 1.4301) using precision cold-drawing processes, this thin-walled, hollow cylindrical tube is primarily used for hypodermic needles and other percutaneous medical devices. Its design, manufacture, and testing strictly comply with ISO 9626:2016 requirements.
As a leading Chinese stainless steel capillary tubes supplier, YUHONG HOLDING GROUP manufactures different sizes(10G-34G) of stainless steel capillary tubes. The length per tube is 2 meter maximum. We can cut into fixed length according to clients’ request. These medical grade stainless steel capillary tubes are mainly used to make medical needles, such as injection needle, hypodermic needle, infusion needle, blood collection needle, IV cannula, dental needle, mesotheraphy needle, and so on. If clients have requirements about finished needle tubes, we can also provide needle tubes with different kinds of needle tips, like tri-bevelled tip, blunt tip, pencil tip, quincke tip, flat bevel tip, etc..
Chemical Composition:
| Element | Composition (%) |
| Chromium (Cr) | 17.5 – 19.5 |
| Nickel (Ni) | 8.0 – 10.5 |
| Carbon (C) | ≤ 0.07 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
Key Features of Medical Grade SUS304 Capillary Tubes:
- Excellent Corrosion Resistance
- Good Formability
- Outstanding Biocompatibility
- High Dimensional Precision
- Excellent Machinability
- Clean Manufacturing Environment
Applications of SUS304 Medical Capillary Tubes:
- Injection & Blood Collection Devices
- Hypodermic needles (vaccines, drugs)
- IV infusion needles
- Insulin injection needles (30G-32G, ultra-thin wall)
- Disposable syringe needles
- Blood collection needles (vacuum tubes, lancets)
- Indwelling catheter cannulas
- Puncture & Biopsy Devices
- Interventional Catheter Devices
- Sensing & Infusion Devices
- Dental Instruments
- Laboratory Devices
- Minimally Invasive Surgical Instruments
Secondary Processing & Services:
End forming capabilities:
- Tip grinding (bevel, triple‑bevel, penta‑bevel, step, micro‑hole down to Ø0.05 mm)
- Bending, flaring, swaging, flanging, tapering, tip rounding, flattening
- Burr-free precision cutting, chamfering, slotting
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