Re: [MW:7957] NAXTRA M700 weldebility

For this materilal you can use either E11016 or E11018M elctrode (Atom arc / Hobart Hobaaloy brand has electodres readily avaible) For SAW wire ECM2 & FCAW E111T1K3MJ can be used (Lincon brand) . Generally this materials are used for low temp application (-40°C)

Preheat & Post heat is mandetory for this material

On Sun, Oct 31, 2010 at 7:46 AM, Prakash Hegde <pb.hegde@yahoo.com> wrote:

 

 

 

Netra material being high  strength material which we have tried with E11016 type elctrode and SAW wire which require to achieve impact at minus 40C and higher UTSatroom room temp (This  material is similar to SA517 gr F or similar)

Welding of this material is critical from resulted properties point of view W

Welding parameters are to be estblished with batch testing in 3G position for electrodes with controlled bead length , current, volt to estblish heat input. and  also preheating and post heating temp.Some time you may require to have ISR for restrain joint

 

generaly Kobelco or Thyssen make brand are good which we have used

 

Regards

 

Hegde P.B.

 

 

 

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From: Dick Overkleeft <dick.overkleeft@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sat, 30 October, 2010 11:21:47 PM
Subject: [MW:7950] NAXTRA M700 weldebility

We are going to use above material fro shipbuilding purpose. Thickness 30- 40 mm. We do not have experience with this specified material, I would like to know from your experience information on ;

Ceq and impactvalue in L and T direction.

 

In regard to the attached manufacturers information , the deviation in chemical composition may be rather high.

 

This may require preheating, which influences the weldebility. If you have any practical information, it will be appreciated.

 

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