Regarding SS 304 Cleaning

[Mohit Aggarwal]

Dear Experts,

Kindly let me know that If SS is effected by Carbon steel and surface get little effected, then is it right to clean it with Nitric Acid by dipping.

Regards,
Mohit Aggarwal.

[Jim Price]

Yes you can use a nitric solution for passivation to eliminate carbon pick-up.

 

Jim Price | Welding Engineer, CWI

Direct:  320.7463439 | Fax: 417-862-5564

jimp...@polarcorp.com

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[Kannayeram Gnanapandithan]

use 1:4, Hydrofluoric acid :Nitric acid with water and clean 

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

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[Abdul Rauf]

You can use nitric solution for passivation to remove carbon.

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Best Regards,

 

Abdul Rauf

Lead QA/QC

BLCT-Project KSA

Cell# 00966 590 637 965

[dili...@gmail.com]

What is removed by passivation is Fe and not C

Sent from my BlackBerry 10 smartphone.

From: Abdul Rauf Sent: Σάββατο, 14 Μαΐου 2016 - 15:37 To: material...@googlegroups.com Reply To: material...@googlegroups.com Subject: Re: [MW:24794] Regarding SS 304 Cleaning

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[David Harvey]

Stainless steel weld surfaces are invariably contaminated by the iron oxide-rich condensed fume deposits surrounding the weldment. If left in situ, this can cause very unsightly rust staining when it become damp . This is what has to be removed. There are numerous proprietary cleaners available from local welding distributors.

Sincerely,

D  Harvey, 

----Original message----
From : abdulr...@gmail.com
Date : 14/05/2016 - 13:35 (GMTST)

To : material...@googlegroups.com
Subject : Re: [MW:24794] Regarding SS 304 Cleaning

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[Mehdi Vafakhah]

Hi

Astm a380 and 697 could be useful.