Double Carbon
Innovation from STS
Our Double Carbon solution responds to the need to increase hardness while maintaining the corrosion resistance of stainless steels. The process involves a carbon-based cold surface hardening and the subsequent deposition of a DLC layer. In this way it is possible to simultaneously enhance the characteristics of hardness, resistance to corrosion and smoothness of the entire system.
Main characteristics
Low coefficient of friction, hardness gradient
Main benefits
Resistance to abrasion, smooth running, antisticking, resistance to corrosion/oxidation and chemical aggression, solution for tribocorrosion/Fretting/Galling phenomena
Technical data
Composition
cold case hardening + DLC
Deposition technology
Diffusion + PaCVD
Thickness
20-30 μm in diffusion
+ 2-3 μm in DLC coating
Hardness
700-1000 Hv + 2000-2500 Hv
Friction coeff. against 100 Cr6
0,1
Deposition temp.
250°C
Max usage temp.
350°C
Color
Black
EN 1935
All data are intended as guide values. The exact values depend on the respective substrate, geometry and surface finish.
