PWHT for 410S clad at 675 degC is ok. There will not be any drop in UTS of Gr70 material. Infact after cladding the elongation of base reduces and UTS goes up which will be nullified by heat treatment at 675 degC
regards
vanchinath
-- On Mon, Jul 30, 2012 at 5:24 PM, <kundan.ahirao@gmail.com> wrote:
Dear Sir,
Thanks for your reply.
Actually my issue is not related to welding of 410S.
What will be soaking temperature after explosion bonding i.e.cladding of SA 516 Gr 70+ SA 240 Tp 410S.
Thanks and Regards
-original message-
Subject: Re: [MW:14984] Stress relieving of 410S
From: Rejoy Thomas <rejoythomas90@gmail.com>
Date: 30-07-2012 1:17 pm
which electrode are u using for this purpose..i think it'z not
E309..if u r using E 410-XX electrode for welding, then heat to
730-760°C and hold for one hour before cooling it to ambient
temperature.. Refer SFA 5.4 Table 6..
On 7/28/12, kundan.ahirao@gmail.com <kundan.ahirao@gmail.com> wrote:
> Dear expert
> kindly advice and share your opinion
> we have cladding of SA516 gr 70 + SA 240 tp 410S.
> After explosion bonding manufacturer is giving SR cycle to clad plate at
> soaking temp 675 deg C.
> But at this temperature tensile strength of base metal will achieve or not.
> If not then what will be soaking temperature.
> Also as per our fabrication drg soaking temp given is 620 deg C.
> Thanks and regards
>
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