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padakandla.suman
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Corrosion Allowance for Stainless Steel

02/08/2012 1:00 AM

Dear All,

Is corrosion allowance needed for stainless steel pipe which is installed near sea shore?

Regards,

Suman Padakandla.
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SolarEagle
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#1

Re: corrosion allowance for stainless steel

02/08/2012 1:19 AM

Not if your using the right stuff....

" Type 316 (2-3% Mo) stainless steel has been shown to provide the necessary corrosion resistance for most applications, at a cost competitive with other piping materials. Where additional corrosion protection might be needed, as in shoreline installations, the duplex SS (3.0-3.5% Mo) can be used to achieve the required hygiene, cost and service life."

http://www.imoa.info/moly_uses/moly_grade_stainless_steels/water_distribution.php

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PWSlack
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#2

Re: corrosion allowance for stainless steel

02/08/2012 3:44 AM

With the availability and suitability of plastic pipe systems these days, it really is a mystery why metals retain such favour.

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Davesets
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#8
In reply to #2

Re: corrosion allowance for stainless steel

02/09/2012 10:45 AM

Pehaps you might want to look at operating conditions before making a blanket statement in favor of plastic. Things like high temperature or high pressure just might preclude PVC.
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Wal
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#3

Re: Corrosion Allowance for Stainless Steel

02/09/2012 7:04 AM

Not all SS is created equal.

What is the application? Handrails?

Expected service life? 1 week or one decade?

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padakandla.suman
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#10
In reply to #3

Re: Corrosion Allowance for Stainless Steel

02/09/2012 11:23 PM

The service is semi liquid for drilling services.
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Wal
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#11
In reply to #10

Re: Corrosion Allowance for Stainless Steel

02/09/2012 11:35 PM

Are you on a rig, shore based..?

What are you using now?

What is your objective and motivation (What and why)?

Paint the full picture. Trust me, you can't give too much information.

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padakandla.suman
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#12
In reply to #11

Re: Corrosion Allowance for Stainless Steel

02/10/2012 12:10 AM

iam not on rig.im just design engineer for various piping systems related to oil&gas and power domains.
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Wal
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#13
In reply to #12

Re: Corrosion Allowance for Stainless Steel

02/10/2012 12:29 AM

Ask the customer what they require (compliance to a standard may be a requirement) and design accordingly.

This is generic advice. I can't proffer a standard for you to reference.

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JerMo
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#4

Re: Corrosion Allowance for Stainless Steel

02/09/2012 8:41 AM

For the ultimate in corrosion resistance in a seaside application. Use Hastelloy tubing.

It will survive a tsunami!
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ronclarke
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#5
In reply to #4

Re: Corrosion Allowance for Stainless Steel

02/09/2012 9:08 AM

Use Hastelloy tubing.
COST!!!!!!

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Wal
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#6
In reply to #5

Re: Corrosion Allowance for Stainless Steel

02/09/2012 10:06 AM

APPLICATION!!!!!!

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PWSlack
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#7
In reply to #6

Re: Corrosion Allowance for Stainless Steel

02/09/2012 10:28 AM

PLASTICS!!!!

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Wal
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#9

Re: Corrosion Allowance for Stainless Steel

02/09/2012 8:55 PM

BAMBOO!!!

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Mukesh0861
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#14
In reply to #9

Re: Corrosion Allowance for Stainless Steel

02/14/2012 10:49 AM

You bet BAMBOO will work well in the conditions !!!!!!!!!!!!!
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JerMo
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#15
In reply to #9

Re: Corrosion Allowance for Stainless Steel

02/14/2012 11:04 AM

Bacon wrapped Bamboo!
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Users who posted comments:

Davesets (1); JerMo (2); Mukesh0861 (1); padakandla.suman (2); PWSlack (2); ronclarke (1); SolarEagle (1); Wal (5)

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