Acid service piping
Piping, spools and components for sulphuric and phosphoric acid plants in zinc and copper smelters and fertiliser units.
Typical materials
| Service | Grades often specified |
|---|---|
| Dilute to intermediate sulphuric acid | 904L, Alloy 20, Incoloy 825 |
| Phosphoric acid | 904L, Alloy 20, 254 SMO |
| Acid with chlorides | Hastelloy C276, 254 SMO |
| Acid plant cooling water | Duplex 2205, super duplex, 316L depending on chlorides |
General guidance only. The final material is set by your process licensor or materials engineer.
Questions buyers ask
Why is 904L used in sulphuric acid plants?
Its copper and high nickel keep it passive in many dilute and intermediate sulphuric acid concentrations where 316L corrodes. Strong acid, high temperature and contaminants can change that, so selection should follow your process data.
Send us your BOQ
Tell us the grades, standards, sizes and quantities. Our estimation team replies from info@teshigroup.com, usually within one working day for standard items.
Drawings, BOQ spreadsheets and QAPs are easiest by email. Attach them to a message to info@teshigroup.com and mention your project name.
Email info@teshigroup.com
Call or WhatsApp +91 78900 09110