Medthin™ 40 MeDLC
MeDLC coating for complex shape parts
Medthin™ 40 “Metal Diamond Like Carbon” , is a low surface roughness coating based on Carbon amorphous phase embedding the crystalline crystals of Tungsten Carbide. The coating is harder than Medthin™ 33 CrCN and it can be declined in grey or black color. The advantage of “Metal DLC” coatings is that they are easier to apply to complex geometries and rough surface preparations due to their low hardness and high ductility keeping a very low friction coefficient. Ideal when a high confidence of coating adhesion over the entire complex shape parts is required combined with good mechanical performance.
Technical Data |
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Material Description |
Tungsten Carbide Carbon (WCC) |
Applicable on the following materials¹ |
all Stainless Steels, Titanium and Aluminium Alloys |
Technologies of deposition |
PVD |
Colour |
Grey or black |
Thickness [µm] |
1 to 10 |
Structure |
Double phase, WC and Amorphous C |
Oxidation Resistance |
High |
Cleaning and Sterilization Resistance |
High, all methods allowed |
Antireflection |
50%-80% visible light absorption |
Electrical Conductivity |
Conductive |
Antibacterial properties |
Not Measured |
Nanohardness [GPa] |
10 to 18 |
Young Modulus [GPa] |
180 to 250 |
Friction coefficient² |
0.2 |
Adhesion Scratch Test, LC3 [N] |
>30N |
Adhesion Rockwell or Mercedes test³ |
Class 1,2, HF1-3 |
Roughness (as coated) [nm] |
~30 |
Corrosion resistance – Neutral Salt Spray |
Max 2 hours |
Biocompatibility data for instruments |
Passed ISO 10993-5, ISO 10993-10, ISO 10993-11 |
MSDS |
Delivered per request |
MAF at FDA in the USA |
- |
Most popular applications |
High fracture toughness, Low roughness, Antireflection, low friction coefficient on light loads-ideal for instruments |