304 SS and hydrogen sulfide

[tankguy]

Is type 304 stainless steel a suitable material for a sludge storage tank where the sludge will have a hydrogen sulfide concentration of 5,600 ppm (v)?

Thankyou, tankguy

 

[mcguire]

There is no danger in using 304 at ambient teperatures. sulfudation starts above 300C. It is negligible below that.

 

[Austenitepro]

Mcguire is correct. Also, nickel can consume 15% percent its own volume in hydrogen as it approaches high temperatures. Which can lead to further problems.

 

[grampi1]

Just don't weld it unless it is dual stamped 304/304L. Welding will cause sensitization unless an "L" grade is ued, and can lead to polythionic stress corrocsion cracking