Re: [MW:18487] Mechanical properties after welding of traditional and thermomechanica rolled steel?l

Dear Ramin,

You will achieve same properties in both base metals (just for weld metal). For example impact specimen with notch exactly in the center of weld metal, the same properties will be seen. Same subject for All-weld metal tensile test specimen.

However above notes will be tend to truth, whenever the weld metal will be more and more (I mean cross section of deposited weld metal).

Regards

On Wed, Aug 21, 2013 at 12:20 PM, Ramin <ramin.ab82@gmail.com> wrote:

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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M. Shokri Arfaei

ISA-ISTS - Metallurgy Lab. Manager

ASNT NDT Level III

International Welding Engineer

Tel.: +98 21 66282127

Fax: +98 21 66282779

Mob.:+98 912 1394023

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