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Electrolytic passivation of stainless steel tank

I have two SS 316 tanks of the following size : a) 1600 mm dia x 3750 mm long b) 2000 mm dia. x 4500 mm long a) How can I passivate the tank electrolytically & the method to do it?

Eswar S
manufacturing - Bangalore, Karnataka, India
2003

2003

Dear Mr. Eswar,

First, solvent clean your tanks to remove all oils. Then wash down with a mixture of 20% HNO3 with 2% sodium dichromate dissolved in it.

Please use proper safety garments like shoes, apron [on eBay or Amazon] and hand rubber gloves [on eBay or Amazon] whilst doing the process.

Wash down afterwards with clean water with a little soap solution.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

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