Products Description
Our Advantages
1. High Dimensional Accuracy
- TORICH SS Capillary Tube is manufactured using a precision cold-drawing process, ensuring consistent dimensions and rigorous dimensional testing, making them ideal for use in catheters, surgical needles, and medical probes.
- Each capillary tube undergoes strict dimensional inspection, with tolerances strictly controlled within ±0.01 mm.
2. Surface Quality Control
- Our tubing undergoes bright annealing and polishing, resulting in a high degree of smoothness on both the inner and outer surfaces. This ensures smooth fluid flow within medical devices, free from dents, pits, or mechanical defects.
- The tubing undergoes surface roughness testing to ensure an inner diameter Ra ≤ 0.2 µm, and ultrasonic cleaning ensures a smooth inner surface.
3. Strong Corrosion Resistance
- TORICH SS Capillary Tube is made of high-quality stainless steel, such as 316L and 310, offering superior resistance to chlorides and salts, as well as to bodily fluids, disinfectants, and pharmaceuticals.
- The welds undergo cleaning and passivation treatment, as well as intergranular corrosion testing, allowing them to withstand autoclaving, chemical sterilization, and saline immersion.
4. Weld Quality
- Our capillary tubes are manufactured using advanced automated equipment and undergo eddy-current and penetrant testing to ensure a smooth, crack-free surface.
- The tubes exhibit excellent compressive strength after bending or forming, making them suitable for precision-formed medical device components such as catheters, endoscope shafts, and guidewire housings.
5. Packaging and Shipping
- Our stainless steel capillary tubes for medical devices are packaged using a clean, protective, and fully traceable system. Each tube is individually packaged in a PE/PP sleeve to prevent contamination.
- We offer various shipping options, including sea, air, and land transport, and support sample matching and customized services, tailored specifically for OEM/ODM medical device manufacturers.
application areas
- Minimally invasive surgical instruments
- Catheters and guide tubes
- Endoscopic components
- Drug dispensing and microfluidic systems
- Oxygen sensors, pressure sensors
- Laboratory analytical equipment
- Thermocouple protection tubes
- Medical testing instruments
Manufacturing process
Chemical Composition
| Element | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| 304L | ≤0.030 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–12.0 | – |
| 310 | ≤0.25 | ≤2.00 | ≤1.50 | ≤0.045 | ≤0.030 | 24.0–26.0 | 19.0–22.0 | – |
| 316L | ≤0.030 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
| 304L | ≥ 485 | ≥ 170 | ≥ 40 | ≤ 92 |
| TP310 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 95 |
| TP316L | ≥ 485–515 | ≥ 170–205 | ≥ 40 | ≤ 95 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| 904L | Super austenitic stainless steel offers excellent cleanliness, making it suitable for precision medical catheters. |
| 2205 Duplex | It exhibits good corrosion resistance in chloride environments, making it ideal for high-pressure medical dispensing equipment. |
| 317L | The higher molybdenum content enhances resistance to pitting and crevice corrosion, making it suitable for implant-related devices requiring high corrosion resistance. |
Products Show
Testing Equipment
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Factory Equipment
Pickling equipment
Polishing equipment
Cold drawing equipment
Products Package
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