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mqas, At two of our operations we are testing brick lined stainless steel. The stainless is first lined with a rubber lining and then brick lined. This is the most promising solution so far. The stainless is only there in case the lining fails. If it does give good service life, the next...

Hacksaw, There is some fluoride but the actual concentration is unknown. I would say that the fluoride concentration is somewhere between 0 - 500 ppm. Phil

For those of you who are familiar with the Inlet quench of smelter's sulfuric acid plant, as you may expect, we are experiencing corrosion problem on this equipment... The inlet quench is the area where hot SO2 (300 C) gas coming from Nickel or Copper smelter is quenched by weak acid spraying...

The reason why I don't fabricate it out of 409 plates is that it is very difficult to roll for 8" diameter and it is also very hard to find in thick (0.5") gage. Thanx again Phil

Thank you guys, so I conclude that I won't find it anywhere. What I'll probably do is cast it. I really don't need strong mechanical properties for this application, it is just a corrosion allowance to protect from a mixture of air-HCl-chlorine gas at 500 C. It is not welded, it is...

Hi, I've tried to find 409 stainless steel piping for the last week. All I find is 409 tubing as per ASTM A268. But this kind of tubing is too thin for my needs. I need a 8" sch 80 409 stainless steel pipe. I'm thinking about casting it now, does anybody knows where can I find such...