[MW:18486] Mechanical properties after welding of traditional and thermomechanica rolled steel?l

Dear experts,

Please advise me;
there are 2 different steel plate with the exact same chemistry. One of them is traditional rolled steel around 1200 degree Celsius with coarse grain structure and one another is thermomechanical rolled in 750 degree Celsius very fine grain structure.
I don't want to weld them together, actually I'm wondering if we use same consumables for welding of each plate separately, how is the mechanical properties (charpy and tensile) of weld metal for these different structure? And why? Does thermomechanical steel provide better quality ?
Same welding process: SAW
Same heat input, wire, flux, dilution, size, ...

Regards,
Ramin

Sent from my iPhone

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