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316L isn't resisting sea water. Will 317L?  

July 28, 2008

I am using ss 316 L pipes for sea water application which is at eleveted temp of 40 degree. I face lot of problem of pipe puncture, whether ss 317L will slove this problem?

Salienty of sea water is more than 20000 ppm, chloride contain is also more. Kindly suggest whether ss317L can give corrosion resistance properties

Girish Bidikar
reliance energy ltd - Dahanu, Maharashtra & India

The best that 317L will do, is to take a little longer before it fails the same way that 316L fails.

You need to use 2205 stainless for such an application.

Bill Reynolds    consultant metallurgist Ballarat, Victoria, Australia

There is a new Duplex Steel called YST 130N by Yokota. It has much higher chromium content of about 26% than regular S.S 316L which should take care of your problem. This steel is made specifically for uses like yours.

Kiran Patel
- Mumbai, INDIA