Dowel Pin's Material
Dowel Pin's Material
(OP)
We are Oil&gas valve manufacturer. My question is it necessary to use stainless steel dowel pin if the body is stainless steel? Is there any problem if I'm using 52100 material? Because I'm thinking that the dowel pin does not expose to the environment.
I'm choosing 52100 material because I need the strength of that material. My freinds suggested to use 17-4PH but it's costly because in the markets very difficult to get dowel pin with 17-4PH material.
I'm choosing 52100 material because I need the strength of that material. My freinds suggested to use 17-4PH but it's costly because in the markets very difficult to get dowel pin with 17-4PH material.





RE: Dowel Pin's Material
Is the stainless body passivated? If so, and if there is some electrolyte, then there will be galvanic corrosion.
You will need to decide how likely it is that any galvanic corrosion will occur, how severe it will be, and the costs associated with that. Then, compare that to the cost of a high-strength stainless pin.
There are high-strength austenitic stainless steel pins available. Try Spirol.
Regards,
Cory
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: Dowel Pin's Material
RE: Dowel Pin's Material
RE: Dowel Pin's Material
RE: Dowel Pin's Material
Regards,
Cory
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.