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Micro-diameter-medical-capillary-tube
Precision Medical Tubing Solutions: Stainless Steel, Titanium & Nickel | GAOLIN TECH
1. Excellence in Compliance: Meeting AMS & ASTM Standards
At GAOLIN TECH, we specialize in high-precision medical-grade tubing that adheres to the world’s most stringent technical specifications. Our production process is strictly aligned with AMS 5560 and ASTM A632, ensuring the highest level of reliability for critical healthcare applications.
● AMS 5560 (Aerospace/Medical Grade): We meet the rigorous requirements for cleanliness, dimensional precision, and mechanical properties essential for surgical instruments and implantable devices.
● ASTM A632 (Precision Capillary Standard): Specialized for small-diameter and thin-wall tubing, our products undergo rigorous testing for intergranular corrosion and surface integrity.
2. Technical Specifications: Chemical Composition (Medical Grade)
Strict control of metallurgical purity as per ASTM/AMS standards.
Material | Grade / UNS | C (max) | Si (max) | Mn (max) | P (max) | S (max) | Cr | Ni | Mo | Others |
Stainless Steel | 304 (S30400) | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-11.0 | — | — |
Stainless Steel | 316L (S31603) | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | — |
Pure Titanium | Gr. 1 (R50250) | 0.08 | — | — | — | — | — | — | — | Fe: 0.20, O: 0.18 |
Pure Nickel | Ni 200 (N02200) | 0.15 | 0.35 | 0.35 | — | 0.01 | — | 99.0 min | — | Cu: 0.25 |
3. Core Manufacturing & Mechanical Requirements
Every tube is processed through vacuum annealing and multi-pass cold drawing to meet specific temper and structural requirements.
Material Grade | Tensile (Rm MPa) | Yield (Rp 0.2) | Elongation (A5 %) | Standard Compliance Focus |
304 / 316L | ≥ 515 | ≥ 205 | ≥ 35 | AMS 5560: Precision surface finish; ASTM A632: Intergranular corrosion test |
Pure Titanium | ≥ 240 | ≥ 170 | ≥ 24 | Biocompatibility; High strength-to-weight ratio |
Pure Nickel | ≥ 400 | ≥ 100 | ≥ 40 | Seamless precision; Electromagnetic shielding |
4. GAOLIN TECH Quality Control: Beyond Standard Testing
We don’t just meet the standards; we exceed them. Our medical tubing quality protocol includes:
● Dimensional Accuracy (ASTM A632): We control OD/ID tolerances within ±0.005mm, significantly tighter than standard industry requirements.
● Surface Integrity (Ra ≤ 0.4μm): Utilizing advanced bright annealing (BA) and internal cleaning technologies to ensure a mirror-like finish, essential for reducing bio-burden.
● 100% Non-Destructive Testing: Including Eddy Current Testing and Micro-Leak Testing to ensure structural integrity in ultra-thin walls (min 0.03mm).
● Cleanliness (AMS 5560): Verified through ultrasonic cleaning and specialized inspection to ensure zero residue of lubricants or metallic particles.
5. Unmatched Supply & Customization Capabilities
● Non-Standard Sizes: Expert production of bespoke dimensions (e.g., OD 0.5mm x WT 0.03mm) for next-generation medical devices.
● Vast Raw Material Stock: We maintain a comprehensive inventory of 304, 316L, Titanium, and Nickel alloys to ensure rapid dispatch (2-3 weeks).
● Applications: Designed for Catheters, Endoscopes, Surgical Robots, Implantable Stents, and High-Precision Fluid Delivery Systems.
