Dear sir,
Practice followed was:
Allow the weld to cool by natural air.
Upon cooling to room temperature carry out the welding.
Donot weld the groove joint in single pass even if the thickness is 3mm.
Root with 1.6 mm dia.
Subsequent multi pass with 2.4 mm dia.
Welding with higher speed but within the WPS.
On Apr 21, 2014 4:24 AM, "Kostas Migiakis" <kmigiakis@gmail.com> wrote:
-- --Dear HrushikeshCan you be more specific on what you mean good welding practice?Which parameters did you control?
Best RegardsKostas MigiakisDear all,The %Fe is now under total control. Good Welding practice made it possible. Thanks for your help.--On Tue, Apr 1, 2014 at 10:47 PM, Hrushikesh Sangamnerkar <hrushi612@gmail.com> wrote:
Dear all,
After doing flush grinding with buffing wheel the ferrite obtained is between 50-52%Fe.Can a 1mm difference from the final layer to flush grinding affect the %Fe?
On Mar 31, 2014 7:14 PM, "Hrushikesh Sangamnerkar" <hrushi612@gmail.com> wrote:Its specified max. Value
On Mar 31, 2014 3:34 AM, "Kostas Migiakis" <kmigiakis@gmail.com> wrote:is this the specified maximum value or the actual measured value during welding?--On Sun, Mar 30, 2014 at 6:16 AM, Hrushikesh Sangamnerkar <hrushi612@gmail.com> wrote:
Heat input max.is 1.5
On Mar 30, 2014 4:00 AM, "Kostas Migiakis" <kmigiakis@gmail.com> wrote:----100% Ar may be the reason of having high ferrite content on your welds.You need to add a γ-stabilizer element (such as Nitrogen) in your weld pool if you want to increase austenite amount in the microstructure.Ar+2N is common for this welds. There are cases where Ar+5N has been used (but in these cases there is danger of porosity)By the other hand did you do strict control on Heat Input?What was the value of HI?
Best RegardsDr. Kostas MigiakisMaterials & WeldingPure Argon is to be used for this material. We had asked for Ar+2%N mixture but customer had rejected.
On Mar 29, 2014 5:27 PM, "Kostas Migiakis" <kmigiakis@gmail.com> wrote:----Dear HrushikeshWhat type of gas mixture did you use for the specific welds?
Best RegardsDr. Kostas MigiakisMaterials & WeldingHi all,--Base Metal: SUS 329J4LFiller Metal: WEL TIG 329J4LTProcess: GTAWFerrite required (%Fe): 30-55%Presently the ferrite obtained is on higher side.%Fe=60-65.Wanted good welding practice if any one worked with this material. Kindly help with some literature for the same.
--
Hrushikesh H Sangamnerkar09724738118
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Hrushikesh H Sangamnerkar09724738118
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