Welding EN14 to mild steel

[Jack Russell]

Should I be using a 7018 rod for this. It is a stub shaft on an implement and takes a bit of pressure. I always assumed different metals should use these rods.

Cheers

 

[TechnicAl]

That should be fine. The weld will be stronger than the MS but a bit shy of the En14 strength........which is good

Warm the en14 before welding....just so its untouchable

 

[Jack Russell]

Cheers for that. I have always been told to pre heat the parts, what is the technical reason for doing this?

 

[TechnicAl]

It helps prevent rapid cooling which for these types of steel can cause brittleness........not all steels and En14 is at the lower end of susceptibility
So its just to be on the safe side

 

[dan.taylor.1]

Bit ot but is en14 between 8 and 16?

Dan

 

[Jack Russell]

It helps prevent rapid cooling which for these types of steel can cause brittleness........not all steels and En14 is at the lower end of susceptibility
So its just to be on the safe side

Thanks for that. Will be a nice job on Tuesday welding it back in.

 

[TechnicAl]

Bit ot but is en14 between 8 and 16?

Dan

believe it or not these numbers were allocated before i was born so ive no idea if there is any logic in them. En8 is a plain carbon steel, en14 is a CMn and En16 is an alloyed steel.