RE: [MW:14201] Welding C45 (1045)

Hi,

 

You can do post cooling with wrapping a glass wool at weld joint- immediate after welding completion. This will also help to resist crack in this higher carbon steel.

 

Best Regards,  

 

Vimal Mistry

 

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of prem nautiyal
Sent: 07 May 2012 15:40
To: materials-welding@googlegroups.com
Subject: Re: [MW:14199] Welding C45 (1045)

 

Hi

 

Increase the preheat to 150 degrees Celcius min. Interpass temp 250 degrees celcius max.

Use SMAW E7018-1 electrode.

 

I have successfully welded C45 material with E7018-1.

 

Regards

 

Prem Nautiyal

 

From: LeONarD P <metpick@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Saturday, May 5, 2012 10:56 AM
Subject: [MW:14187] Welding C45 (1045)

Dear All expert

        Welding C45 (1045) steel (Pivot Boss) to S275JR (main
structure)

1045 Pivot Boss is casting part.
S275JR is steel plate

For a project I need to weld a C45 (1045 steel, 0.45% carbon Thick 100
mm) on a S275JR steel ( Thichness 30 mm.)

Joint design & condition weld:  T-butt joint, double bevel, CJP. Bevel
at S275JR steel.
                                                  preheat 110 C
minimum,. interpass temp 220 C max.
                                                  by FCAW process.
A5.20 / E71T-1C


      After weld, the problem is crack appear along on surface casting
part (1045 steel)

How to solve this problem.

Thank you very much.
leonardd..

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