Advantages and disadvantages of phosphating treatment and blackening treatment

31 Jul.,2025

Phosphating treatment can improve the hardness and corrosion resistance of the metal surface, so that it has a better anti-corrosion effect; smooth surface after treatment, there is a certain lubricity.

 

Author: Anna

 

Advantages and disadvantages of phosphating treatment and blackening treatment

 


1. Advantages and disadvantages of phosphating treatment

Advantages: phosphating treatment can improve the hardness and corrosion resistance of the metal surface, so that it has a better anti-corrosion effect; smooth surface after treatment, there is a certain lubricity.

Disadvantages: phosphating treatment requires certain equipment and operating techniques, processing time is longer; the surface color after treatment is darker, less beautiful than other surface treatment methods.

 

 

2. Advantages and disadvantages of blackening treatment

Advantages: the blackening treatment can be carried out in the family conditions, the processing time is shorter; the treated metal surface has a better aesthetic effect and anti-corrosion effect.

Disadvantages: blackening treatment of metal surface hardness and corrosion resistance is relatively weak, easy to be scratched or wear.

 


Although phosphating treatment and blackening treatment are both metal surface treatment, but their role and effect is different. Phosphating treatment is suitable for surface treatment of workpieces requiring hardness and corrosion resistance, while blackening treatment is suitable for surface treatment of workpieces requiring aesthetics and corrosion resistance. When choosing the surface treatment method, you need to choose according to the requirements of the workpiece and the actual situation.