Hello,
I have a commodity with a concentration of 0,5% of H2S04 and a temperature of 200ºC, and, I don't know if this concentration is very acid.
Someone can help me??
There is an alloy called alloy 31, which is a austenitic stainless steel. It has very good resistance angainst H2SO4.
Please find a iso corrosion diagram on page 5 in the attached material data sheet.