I shall use stud 1" diam. With 625
I shall use stud 1" diam. With 625
(OP)
I shall use stud 1" diam. With 625 alloy material for pressure vessel application. Vessel made with chrom-moly, T=500°C and high pressure. Would you indicate me the grade of nuts available in the market that goes with 625. (the mechanical properties have to be less 625's).





RE: I shall use stud 1" diam. With 625
You may even have to import the nuts from Japan or Scandinavia or some place. Try email direct to piping Vendors locally and overseas.
RE: I shall use stud 1" diam. With 625
RE: I shall use stud 1" diam. With 625
RE: I shall use stud 1" diam. With 625
RE: I shall use stud 1" diam. With 625
grade of nuts available in the market that goes with 625 !
RE: I shall use stud 1" diam. With 625
However, I'm not a specialist in this area and there may be incompatibilities of expansion coefficients and surface hardness so you really should discuss it with a manufacturer or supply house as suggested by johnp. Have your service conditions at hand when you call.
You could also try calling the technical department metallurgists at INCO or Huntingdon to check on the compatibility.