A Jacobs Company

Sulphuric Acid Plant Equipment

Chemetics 2012 Chemetics Inc. A Jacobs Company 2001 Clements Road, Pickering, Ontario. L1W 4C2 Tel +1 905 619 5200 Fax +1 905 619 5347 www.jacobs.com

CIRAMET austenitic stainless steels are a family special steels whose use has been developed by Chemetics for the critical components of the Chemetics Anodically Protected Seawater Sulphuric Acid Coolers. Developed from the extensive operating experience gained from Chemetics seawater acid coolers in service since 1971 and exhaustive in-house testing and ongoing pilot plant projects, the specifications for CIRAMET alloys have produced a family of materials custom designed for the critical seawater cooling applications. Manufactured by the latest steel making processes, the chemistry of the alloys has been tailored to Chemetics exacting specifications to optimize pitting & crevice corrosion performance characteristics required for this most severe service while retaining the required corrosion performance in hot sulphuric acid.

The most critical component of a seawater acid cooler is the tubing which is required to operate at elevated metal temperatures. For this severe service Chemetics has developed proprietary tubing specifications which far exceed those of regular commercially produced tubing.

CIRAMET is a Registered Trademark of Chemetics Inc.

CIRAMET tubing is manufactured from strip which is converted on a state of the art automatic welding line where frequent stringent quality control checks and regular production sampling, performed at every stage of the process, ensure a finished product of the highest possible quality. The weld in the tubing is mechanically worked prior to carefully controlled annealing and finishing operations. This series of exacting procedures, all carried out under the strictest quality control standards, assures the virtual elimination of defects while producing a bore finish of superior quality. All tubes are 100% eddy current tested and under water air tested before visual and strict corrosion tests are performed. Only then are the tubes qualified for use in Chemetics Seawater Acid Coolers.

Seawater Acid Coolers awaiting shipment from

Chemetics factory in Toronto. The combination of Chemetics exacting specifications, advanced heat exchanger design techniques, specially developed fabrication procedures and an intensive quality control programme produce an acid cooler of the highest quality required for the arduous duty of cooling hot sulphuric acid with aggressive saline water. Over 135 Chemetics Seawater Cooled Sulphuric Acid Coolers are currently in service in over 15 countries around the world.

Nominal Composition of CIRAMET

Element Weight %

Chromium 20

Nickel 18 -25

Molybdenum 4 - 6

Iron and other Balance alloying elements