Burnishing on steel

Burnishing on steel is always followed by oiling.

The purpose of this treatment is

  • to give a black appearance,
  • temporary passivation,
  • to improve the coefficient of friction.
 
Coating thickness Less than 1 μm
Excess thickness caused by the deposit None
Hardness Substrate unchanged
Conductivity Good
Weldability Not weldable
Salt spray test resistance Very low, less than 1 hour, according to the ISO 9227 and ASTM B117 standards
Paint adhesion Not applicable
Slip Not applicable
Appearance Black
Substrate Steel
Capacity Length Width Height
1,100 mm 400 mm 600 mm
Treatment techniques Single parts or Frame
Comments Always followed by oiling. The purpose of this treatment is:
- to give a black appearance,
- temporary passivation,
- to improve the coefficient of friction.