Is there a "Corrosion Problem" when 4130 Steel comes into contact with Aluminum?

[Southron]

I will start building my 1st Homebuilt aircraft sometimes later this month. So, I have a basic question.

When 4130 Normalized steel tubing comes in contact with aluminum in an aircraft structure, say for example, a 4130 steel tube Wing Spar in an aluminum wing structure, is there a "Galvanic" (or other) type of Corrosion Problem?

If such a problem exists, what steps can be taken to prevent that corrosion?

THANKS!!!

 

[SVSUSteve]

 

[orion]

 

[harrisonaero]

 

[PTAirco]

 

[BBerson]

 

[Dan Thomas]