Source: Monsanto Enviro-Chem Systems, Inc.
Enviro-Chem Systems is committed and focused on providing solutions to corrosion problems in the Sulfuric acid industry
Enviro-Chem Systems is committed and focused on providing solutions to corrosion problems in the Sulfuric acid industry. Our ability to combine the latest equipment technology with optimum material selection has been the key to our success. Enviro-Chem's portfolio of alloys for strong Sulfuric acid includes materials such as 310M which have been widely used in the industry.
The newest addition to our line of corrosion resistant alloys - ZeCor is available exclusively from Enviro-Chem. ZeCor exhibits exceptional corrosion resistance in 93% - 99% Sulfuric acid. It costs less than other stainless steel alloys which means ZeCor is also very competitive with traditional materials of construction such as cast iron and brick-lined carbon steel (see chart). Corrosion data from extensive laboratory studies and plants service confirm corrosion rates of less than 1 mpy (0.0254mm/yr) in concentrated hot sulfuric acid.
ZeCor offers many practical advantages over other alloys:
- Lower cost.
- Plate thickness is no longer limited to a few options. Full advantage of the corrosion resistance can be taken by limiting corrosion allowance on the material required.
- Proven proprietary welding process is basic gas tungsten arc weld (GTAW-TIG) with use of ZeCor filler wire. Resulting welds have been qualified to ASME code section IX procedure and maintain their corrosion resistance properties throughout.
- Weldability is similar to that of 304/316 stainless steel which allow onsite repairs to be easily performed by plant maintenance personnel.
Monsanto Enviro-Chem Systems, Inc., 14522 S. Outer Forty Rd., Ste. 100, PO Box 14547, Chesterfield, MO 63178. Tel: 314-275-5700; Fax: 314-275-5701.