Medthin™ 61 ZrCN

ZrCN coating for surgical instruments

Medthin 61 ZrCN, has light gold colour or copper depending on the amount of carbon content in the cubic ZrN matrix. ZrCN coating is suitable for use in colour coding of surgical instruments. The coating is overall resistant having a lower wear rate compared to ZrN and have a good adhesion to all substrates. Functional ZrCN coatings can be deposited at higher thicknesses but the color coding ZrCN is typically deposited at about 2µm.

Technical Data


Material Description

Zirconium Carbon Nitride (ZrCN)

Applicable on the following materials¹

all Stainless Steels, Titanium and Aluminium Alloys

Technologies of deposition



Light gold to copper

Thickness [µm]

1 to 5


Gradient layer, maximum carbon content of x=30at% in ZrCxN, it remains always cubic and polycrystalline

Oxidation Resistance

High Chemical resistance at temperatures below 450°C

Cleaning and Sterilization Resistance

Medium, all methods allowed



Electrical Conductivity


Antibacterial properties

Not measured

Nanohardness [GPa]

25 to 35

Young Modulus [GPa]

350 to 450

Friction coefficient²

0.6 to 0.4

Adhesion Scratch Test, LC3 [N]


Adhesion Rockwell or Mercedes test³

Class 1,2, HF1-3

Roughness (as coated) [nm]


Corrosion resistance – Neutral Salt Spray

Max 30min

Biocompatibility data for instruments

Passed ISO 10993-5, ISO 10993-10, ISO 10993-11


Delivered per request

MAF at FDA in the USA


Most popular applications

Color coding of instruments, multiple colors are possible, good chemical stability

¹for any other material please contact ionbond
²against 100Cr6 steel ball
³Method either by ISO 26443 or VDI 3198

The values given are approximations and may vary depending on the application, environmental factors and test protocols.