Elgiloy vs. Inconel 718 for 17% H2S service,
Elgiloy vs. Inconel 718 for 17% H2S service,
(OP)
I have two spring materials to choose from for use in a spring energized seal but not sure if Elgiloy or Inconel 718 will be better in term of better resistance to corrosion because of the present of H2S at 17% conc.
Could you please give some advice? If possible, please include source of information.
Many Thanks,
Could you please give some advice? If possible, please include source of information.
Many Thanks,





RE: Elgiloy vs. Inconel 718 for 17% H2S service,
RE: Elgiloy vs. Inconel 718 for 17% H2S service,
We also have had one Elgiloy spring failure in highly sour service. We think it was over cold worked and was near strain exhaustion as new.
Who checks hardness of thin flat Elgiloy springs to confirm they are below 60Rc?
RE: Elgiloy vs. Inconel 718 for 17% H2S service,
Thanks for your advice. So it is not benefitial to heat treat the Elgiloy for high conc. H2S service because it will increase the embrittlement?
We like to heat treat our Elgiloy springs to improvement yield's strength but I am not sure if heat treatment could hurt in the case of high conc. H2S service.
B
RE: Elgiloy vs. Inconel 718 for 17% H2S service,
heat treatment is fine, but you need to know how much it was cold worked before so that it doesn't end up too hard.
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