Connections Surface treatments

Connections Surface treatments

In order to ensure the functional efficiency of a connection, even after multiple make-up operations, surface treatments are applied to the box, the pin or to both. The surface treatments are applied to improve:

  • the resistance to galling;
  • the sealing capability;
  • the resistance to corrosion.

Below the effect of the different surface treatments on these phenomena is highlighted. First a brief description of the most common treatment is given.

1 Process descriptions

The following surface treatments are used:

Phosphating Phosphating is . . .

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