Cobalt-Chromium Tubes (CoCr Tube)

Cobalt-Chrome Tube: Precision-Engineered Hollow Structures for Advanced Medical Devices

Cobalt-Chromium Tubes Description:

Hollow cobalt-chrome cylinders crafted through seamless drawing or extrusion, ranging from micro-tubes (0,3 mm diameter) to larger sizes (up to 25 mm), with wall thicknesses of 0,05–2 mm. Grades like L605 and MP35N are commonly used for their enhanced corrosion resistance and strength.

Cobalt-Chromium Tubes Key Features:

Outstanding corrosion resistance due to chromium oxide passive layer.
High fatigue strength for dynamic applications (e.g., L605 excels in stents).
Biocompatible, ideal for long-term implantation (MP35N offers superior pitting resistance).

Cobalt-Chromium Tubes Certifications and Standards:

ASTM F90 (L605): Specific to CoCrWNi alloy for medical use.
ASTM F562 (MP35N): Governs CoCrNiMo alloy properties.
ISO 5832-4: Applies to CoCrMo alloys for implants.
ISO 13485: Quality management; FDA and CE approvals required.

Why Cobalt-Chrome?

Cobalt-chrome’s strength, wear resistance, and biocompatibility—enhanced by grades like L605 and MP35N, and backed by rigorous standards—make it a top choice for medical innovations. Interested in specific applications or tailored solutions? Reach out to us for more information!

Materials

Cobalt-chrome (CoCr), an alloy of cobalt and chromium often enhanced with molybdenum, is prized for its exceptional strength, corrosion resistance, and biocompatibility. With tensile strength ranging from 800–1500 MPa and hardness of 300–550 HV, CoCr is a cornerstone in medical technology. Popular grades like L605 (Co-Cr-W-Ni) and MP35N (Co-Cr-Ni-Mo) elevate its performance.

Application

Stents: Coronary stents (2–5 mm to 8–20 mm expansion) made from L605 ensure vascular support.
Catheter Components: MP35N tubes (0,5–2 mm Ø) guide minimally invasive procedures.
Orthopedic Sleeves: Larger tubes (10–25 mm Ø) reinforce joint implants.

Specifications