Overview of Medical Cobalt Chromium Tubing ASTM F562
Our fatigue resistant medical cobalt chromium tubing ASTM F562 (MP35N alloy) delivers unmatched performance in today’s most demanding interventional and minimally invasive procedures. Manufactured from high-purity cobalt-nickel-chromium-molybdenum alloy, this seamless drawn tubing combines ultra-high tensile strength (up to 300 ksi), exceptional fatigue life, and proven biocompatibility — making it the gold standard for next-generation cardiovascular, neurovascular, and endovascular devices.
Features of ASTM F562 Medical Cobalt Chromium Tubing
Superior Fatigue Resistance — Optimized microstructure delivers millions of stress cycles without failure, ideal for dynamic vascular loading in interventional instruments.
Excellent Corrosion & Crevice Resistance — Outstanding performance in chloride-rich bodily fluids and hostile environments, far surpassing stainless steel.
Ultra-High Strength & Toughness — Work-hardened and age-hardenable to achieve maximum mechanical properties while retaining ductility.
Precision Seamless Construction — Tight OD/ID tolerances and superior surface finish (Ra < 0.4 µm outer, ultra-smooth inner) for low-friction hypotube and delivery systems.
MRI-Compatible & Non-Magnetic — Fully compatible with imaging-guided minimally invasive procedures.
Full ASTM F562 Compliance — Certified wrought alloy for surgical implant applications with traceable medical-grade raw material.
Applications of Fatigue Resistant MP35N Cobalt Chromium Tubing
Coronary & Peripheral Stents – High radial strength and long-term durability under pulsatile fatigue.
Catheter Hypotubes & Delivery Systems – Enhanced pushability, torque response, and kink resistance for complex vascular navigation.
Guide Catheters & Introducer Sheaths – Precision components for minimally invasive access in cardiology and radiology.
Embolization Devices & Coils – Reliable deployment in neurovascular and peripheral interventions.
Transcatheter Heart Valve Frames – Fatigue-proof structural support for TAVR and TMVR procedures.
Endovascular Tools & Atherectomy Devices – High-performance tubing for chronic total occlusion (CTO) and complex PCI interventions.
ABOUT US
Victory Alloy Co., Ltd. is a professional manufacturer specializing in medical alloy materials, with a dedicated focus on the research, development and production of high-performance biomedical alloys.
Our primary product range includes medical-grade titanium alloys, Nitinol (nickel-titanium alloy), cobalt-chromium (CoCr) alloys, platinum-iridium (Pt-Ir) alloys, and medical stainless steel. These high-quality alloys are widely applied in a broad spectrum of medical fields, such as cardiovascular stents, orthopedic implants, interventional guidewires, dental implants, surgical instruments, and disposable medical auxiliary devices. Boasting outstanding biocompatibility, strong corrosion resistance and excellent mechanical properties, our products have won consistent praise from customers across the board.
Client Visits
We welcome client visits to showcase our manufacturing and testing processes. Clients can explore our facility, discuss specific needs, and learn about our quality control methods. Our team ensures a personalized experience to meet your exact requirements for medical applications.
Our Factory
Quality Testing of the Product
Our product undergoes strict testing for tensile strength, corrosion resistance, and biocompatibility to ensure reliable performance in joint implants. We use advanced methods to verify its safety and durability, and all products meet international medical standards for consistent, long-term use in the body.
FAQs on CoCr Tubing for Interventional Devices
1.What is ASTM F562 medical cobalt chromium tubing?
ASTM F562 specifies the wrought cobalt-35nickel-20chromium-10molybdenum alloy (MP35N) for surgical implant applications. It is the industry benchmark for high-fatigue, biocompatible tubing used in interventional instruments.
2.Why is fatigue resistance critical for interventional and minimally invasive devices?
Cyclic pulsatile loading in stents, catheters, and heart valves demands millions of stress cycles. Our fatigue resistant MP35N cobalt chromium tubing dramatically reduces fracture risk compared to standard alloys.
3.How does this tubing compare to Nitinol or stainless steel?
MP35N offers higher ultimate tensile strength, superior corrosion resistance in chloride environments, and better long-term fatigue life than 316LVM stainless steel, while providing greater radiopacity and pushability than Nitinol in many delivery-system applications.
4.Is the tubing suitable for long-term implants?
Yes — fully biocompatible and certified to ASTM F562 for permanent surgical implants with excellent resistance to stress corrosion cracking.
5.What surface finish and tolerances are available?
Seamless drawn with outer Ra < 0.4 µm and customizable inner surface finish. Standard tolerances meet or exceed medical device OEM requirements for hypotube applications.
6.Do you offer custom sizes and lengths?
Yes — full range of OD/ID/wall combinations and cut-to-length options tailored for interventional cardiology, neurovascular, and structural heart devices.
7.Is the material MRI safe?
Completely non-magnetic and MRI conditional, ensuring safe use in imaging-guided minimally invasive procedures.
