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Re: [MW:8966] Influence of FERRITE content in weld overlay

By Materials & Welding
Hi,
01. The ferrite level is only important to assure minimum exposure to solidification cracking when depositing austenitic stainless steel weld metal. The lower ferrite number is better for corrosion resistance, while balancing higher ferrite content to avoid solidification cracking in the weld deposit. I would not worry about lower ferrite numbers for clad overlay welding, if no cracking is observed (Liquid Penetrant verification).

02.Very low/Less ferrite can lead to cracks

Thanks & Regards,

(Karthik)

Karthikeyan.S
QA/QC Manager
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
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--- On Mon, 12/27/10, akcme <akhilcme@gmail.com> wrote:

From: akcme <akhilcme@gmail.com>
Subject: [MW:8962] Influence of FERRITE content in weld overlay
To: "Materials & Welding" <materials-welding@googlegroups.com>
Date: Monday, December 27, 2010, 8:21 PM

Dear all,

What is the influence of ferrite content on Inconel 625 overlay.

What will happen when it is Zero??

Please advice.



Regards

Akhil

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