Hi!
As base metal is of LAS , req PWHT at min 650C , Therefore suitable consumable for clad restoration of 410 S clad is E NiCr fe3 or NiCr Mo3
Preheat Temp . of base metal for barrier layer is 100 C , (No need of preheating for subsequent layers. min ,Interpass temp is 175 max, Welding Current – 110-120 Amp for 3 .2 dia electrode.
Regards
Hegde
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of P.Rao
Sent: Saturday, June 26, 2010 5:21 PM
To: materials-welding@googlegroups.com
Subject: [MW:5751] Welding of SA 240 TP 410S material.
Dear all,
Can any body share the experience in welding of SA240 TP410 Material.
I have a Vessel consists SA387 Gr.11 Cl.2 material cladded with SS410S.
Internal Piping material : SS410S thickness 10-15mm.
Construction Code : ASME SEC VIII Div.1.
Welds in SS410S will under PWHT of low Low alloy steel.
Need guidance in Preheat & interpass temperature of SS410 material welding (Consumable selected for welding of SS410S is 309L type).
regards
P.Rao
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