[MW:34522] RE: 17-4PH UNS S17400 - Repair Welding procedure and recommendations

ER630 filler is a matching filler to 17-4 PH steel. Welds in this steel are usually age -hardened to get the matching strength as the B.M. Refer ASTM A-564 for guidance on Heat Treatment. The cracked areas should be finely ground to a softer metal. Check the hardness of the area to be repaired & compare the same with the B.M to get the idea.

 

Smaller repairs may be left as welded . Larger build-ups would call for PWHT(age hardening). For valve shaft age hardening may difficult if it's not dismantlable. Check over all hardness after repair, as well as clear PT.

 

Look at the below mentioned reference for some guidance.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Welding & Metallurgical Engineering Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@rogers.com,pradip.goswami@gmail.com

Cell/Whasapp:1-905-9793232

 

ER 630 Tig (17-4 PH) | Certilas: The filler metal specialist

 

From: Dương Vinh Quang <duongvinhquanga13@gmail.com>
Sent: Friday, September 1, 2023 10:55 PM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: Re: 17-4PH UNS S17400 - Repair Welding procedure and recommendations

 

Hi bro,

Please share me WPS relate you job because I have the problem same you! Thank you!

my email: duongvinhquanga13@gmail.com

Vào lúc 17:02:09 UTC+7 ngày Thứ Năm, 1 tháng 3, 2018, Balasubramanian.N đã viết:

Dear Seniors,

 

I need your guidance of 17-4PH corroded valve shaft build-up(Overlay) welding procedure. 

 

Base material : 17-4PH shaft 

Welding process : GTAW

Filler wire: ER630

 

I request you to please give us your recommendation and procedure  to repair this 17-4PH shaft.

 

And also please clarify that PWHT is recommended or not .

 

Thanks and regards

Balasubramanian

Kuwait  

 

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