threading/ welding aisi 316 chromed

[vdrummer]

Good morning to all,
I have been reading you for years with passion and I would like to ask you for advice on working a hydraulic actuator stem.
the outer part of the stem must be bound to a eyelet by threading or welding, on the inside part a shouldering or different solution (economic) must be obtained that allows to bind the seals to the stem.
possible options are 2:
1) purchase auction in aisi 316 chrome (report 25 micron): in this hypothesis the thread would remove the chrome, how can I do to avoid reshaping everything? the thread would be "covered" because above is screwed an eyelet for the grip of force. I would avoid welding because the cord would remain uncovered and its fumes are toxic but I would like your opinion.
2) purchase auction in aisi 316 not chromed: in this hypothesis I would carry out threading (or welding?) shouldering etc and then I would crumble everything, the problem is that to return some costs I should break a lot of stuff but at the moment I do not have it.
What would you do?
Thank you for the attention, I wish you a good day and good weekend.
Maquro

 

[MBT]

Good morning to all,
I have been reading you for years with passion and I would like to ask you for advice on working a hydraulic actuator stem.
the outer part of the stem must be bound to a eyelet by threading or welding, on the inside part a shouldering or different solution (economic) must be obtained that allows to bind the seals to the stem.
possible options are 2:
1) purchase auction in aisi 316 chrome (report 25 micron): in this hypothesis the thread would remove the chrome, how can I do to avoid reshaping everything? the thread would be "covered" because above is screwed an eyelet for the grip of force. I would avoid welding because the cord would remain uncovered and its fumes are toxic but I would like your opinion.
2) purchase auction in aisi 316 not chromed: in this hypothesis I would carry out threading (or welding?) shouldering etc and then I would crumble everything, the problem is that to return some costs I should break a lot of stuff but at the moment I do not have it.
What would you do?
Thank you for the attention, I wish you a good day and good weekend.
Maquro

I don't know the application specifically, but...
chromiuming in hydraulic cylinders serves to minimize friction between stem and seals, using a smooth and hard surface
If the basic material is already stainless, I doubt that the chrome can give you additional protection
So... take your chromed stainless steel bar and work it out

 

[orlluca]

I often use chromed bars in aisi, in the head I make female thread.

 

[vdrummer]

Hi.
I omitted the important detail that in the past there have been phenomena of "pitting" and breakages due to oxidation (presence of oxidizing agents).
thanks for the answer

 

[MBT]

Hi.
I omitted the important detail that in the past there have been phenomena of "pitting" and breakages due to oxidation (presence of oxidizing agents).
thanks for the answer

and then perhaps it is the case to consider other types of stainless steel or even other materials. ...

 

[vdrummer]

I think I will opt for aisi 316l and subsequent chrome, the dilemma remains that of welding or female thread in the head of the stem as it does orlluca.
thanks for the attention,
Mature