Skip to main content

[MW:23626] Re: NEED ADVISE CORROSION IN INHIBITOR TANK REGD

Dear Sir,

It's is a corrosion inhibitor storage tank for subsea pipeline project , 

operating temperature is 40degree Celsius ,
Operating pressure.     Is .7KPA
Chemical is injected inside the tank , as per design data sheet there is no insulation.

Now I have planned to visit the location and provide more information in environmental condition,
Almost 5years completed and dispatched the job.

P.NEILASHKUMAR 
Sent from my iPad
MOB : 966 533098265
            91+9952110791

On Sep 30, 2015, at 5:27 AM, pgoswami <pgoswami@quickclic.net> wrote:

Hi Neileshkumar,

What're the surrounding operating or environmental conditions around the tank. Are there any acid fumes involved. Looks like this tank was not insulated at all??? Is that true.

Appreciate more information on the operating conditions.

 
Thanks


 
Pradip Goswami, P.Eng,IWE
Welding & Metallurgical Engineering Specialist
Hamilton, Ontario, Canada
pgoswami@quickclic.net
pradip.goswami@gmail.com
ca.linkedin.com/pub/pradip-goswami/5/985/299

-----Original Message-----
From: Neilash Kumar [mailto:neilashkumar@yahoo.com]
Sent: Tuesday, September 29, 2015 2:45 AM
To: Pgosami Sir; Pgosami sir
Subject: NEED ADVISE CORROSION IN INHIBITOR TANK REGD

Dear Sir,

Good Morning, please find the attached tank drawing fabricated by us for our client & it is corroded fully , Can you please clarify,

1. Why the tank are corroded So fast?
2. Can you please advise us the method to stop /reduce the rate of corrosion by applying a top coat &  what type of coating to be applied?

please advise me . Material is 316L tank.

Regards
P.Neilashkumar

<Tank Corrosion.pdf>

Comments

Popular posts from this blog

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

[MW:5202] RE: 5200] NDT after PWHT

------------------------------------- Interpretation:  I‑89‑14 Subject:         Section I (1986 Edition, 1987 Addenda), PW‑11,                  NDE Prior to PWHT Date Issued:     December 15, 1988 File:            BC88‑393   Question: Does PW‑11 require that NDE be performed on welds after they have been subjected to the postweld heat treatment required by PW‑39?   Reply: No, unless the conditions described in PW‑11.2.2 exist. ---------------------------------------------- Interpretation:  VIII-1-98-09 Subject:         Section VIII, Division 1 (1995 Edition, 1996 Addenda); NDE                 ...

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...