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Which grade of Stainless Steel for Sulfuric Acid Purification System?

I want to use stainless steel pipe for a membrane system to purify sulfuric acid of 8 to 10% concentration. Which grade of Stainless Steel pipe should be suitable for such an application. My system will work at a pressure of 35 kg/cm2. The Sulfuric acid will be pumped into the system with help of a high pressure pump.

Yamesh Dave
Designer - Vadodara, Gujarat, India
2007

What are the impurities and their maximum concentrations? Maximum temperature? Maximum flow rate? Is the solution aerated or ~oxygen-free?

Zirconium may be more suitable than any stainless steel.

Ken Vlach [deceased]
- Goleta, California

Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2007

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