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Re: [MW:35144] Buttering

By Materials & Welding
Yes, PWHT is a requirement for Low alloy but not for Carbon steel. PWHT requirement for Low alloy is "heat upto 630-660 deg C and hold for 1hr and cool down to 400 deg C in controlled way and cooling to ambient should be done under insulation

On Mon, Jul 29, 2024 at 9:21 AM Vishwas Keskar <vvkeskar123@gmail.com> wrote:
Let us know the production weld condition to respond to your query 
The query can not be answered in isolation 
Is PWHT is applicable ? 
If yes PWHT Parameters?
"Equipment service conditions?
Sent from my iPhone

On 28 Jul 2024, at 11:34 PM, Talha Aamir <aamirtalha01@gmail.com> wrote:


Hi, 

I hope you are all very well.
I wanted to know the reason behind why we use inconnect and E309L electrodes for buttering? what is the reason behind using those? Suppose a dissimilar weld between low alloy and carbon steel. We do buttering of inconnel on Low alloy metal.

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