🔍 Product Description
CoCr28Mo is a nonmagnetic cobalt-chromium-molybdenum alloy designed for medical implants. It offers exceptional corrosion resistance along with superior fatigue and wear resistance. With a nickel content of less than 0.1%, it ensures optimal biocompatibility. This alloy is particularly suitable for medical implants such as endoprostheses and osteosynthesis where high mechanical stress is anticipated.
Produced via powder metallurgy, this alloy features an exceptionally fine microstructure. It is tough, ductile, and non-magnetic, meeting the strictest standards for medical applications. While its high cobalt content provides strength, it is also known for its durability in demanding micromechanical environments.
| Chemical Composition Limits (Weight %) |
| Grade |
C |
Si |
Mn |
Cr |
Mo |
Ni |
Fe |
N |
Co |
| CoCr28Mo |
0.14 max |
1 max |
1 max |
26.00-30.00 |
5.00-7.00 |
1 max |
0.75 max |
0.25 max |
Bal |
❓ Frequently Asked Questions
Q1: What are the primary benefits of CoCr28Mo alloy?
It offers a unique combination of high mechanical strength, excellent wear resistance, and superior biocompatibility due to its low nickel content.
Q2: Is this material suitable for permanent medical implants?
Yes, CoCr28Mo (ASTM F1537) is specifically designed and widely used for long-term medical implants like artificial joints and bone plates.
Q3: What makes this alloy non-magnetic?
The specific balance of Cobalt, Chromium, and Molybdenum creates a stable austenitic structure that remains non-magnetic, which is vital for patients undergoing MRI scans.
Q4: What surface finishes are available for the rods?
Common finishes include polished, bright, peeled, and centerless ground (H9/H11 tolerance), depending on the application requirements.
Q5: How does the powder metallurgy process improve the alloy?
It results in an exceptionally fine and uniform microstructure, which enhances the material's fatigue strength and ductility compared to traditional casting.
Q6: Can the length and diameter be customized?
Yes, we provide various diameters ranging from 4.0mm to over 1200mm, with lengths cut to specific customer requirements.
Retra Medical
