Re: [MW:10859] RE: Inconel 625 overlay on AISI4140

Dear Mr Moturu,

 

How are you checking the effect of cyclic loads on the overlay? What kind of testing was carried out?

Regards,

Ravi

On Mon, Apr 25, 2011 at 1:43 PM, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:

What is you code of construction, was there any lethal or sour service requirements? Hardness restrictions? Requirement of SCC etc.

What is the tempering temperature of the base material (probably 540 °C is recommended as it should not exceed the tempering temperature), refer the datasheet tempering temperature for this material in the range of 540-680°C

 

From: venu moturu [mailto:moturuvenu@yahoo.com]
Sent: Sunday, April 24, 2011 10:57 AM
To: materials-welding@googlegroups.com
Cc: Bathula Raghuram (Mumbai - PIPING)
Subject: Inconel 625 overlay on AISI4140

 

Dear Friends,

 

Could anyone  pl. advice or guide us  as we wanted to weld corrosion resistant overlay of Inconel 625 on AISI 4140 on a used sub sea equipment in the oil and gas sector , where in the application demands severe Tensile and cyclic loads  on the component . The overlay shall be of approximately 4~5mm on a 100 mm thick section .

 

The vendor has submitted us two procedures with pulsed GMAW (Auto ) welding process having with and without  PWHT . When we referred the procedure with PWHT  we found that  the procedure is qualified (at  540 degreeC @ soaking time 2hrs and rate of heating 150 degree C/Hr)

 

can anyone help me out to send the literature with and without PWHT

 

Best regards

venu

 

 

 

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.