stainless steel welding 2

[korobi]

Hello,
I am trying to plan some activities related to stainless steel welding in a very tight time schedule. I need to know how much more time in average does it take to weld stainless steel (DIN:X15CrNiSi2012) plate (e.g. 5 mm thick) comparing to welding of low carbon steel .

Thanks in advance!

Janusz Tchorzewski

 

[stinkefete]

Janusz,
There would be no difference if you used a pulsed MIG, like a Synchro-pulse 450, properly programmed for filler wire, and the appropiate gas mixture.
I believe Lincoln have a similiar machine as well. both machines quite expensive.
I hope this is of some assistance.
regards
stinkefete

 

[arunmrao]

The time difference should not be significantly different given the same thickness of material and operator skills. Stainless steel has good weldability and poses no problems during welding.

 

Have you tried TIG welding , this is a very clean weld. You could use a 1.6mm tungsten or a 2.6mm.. The 1.6mm is for thin plate , dairy tubing etc . The 2.6mm Is for anything from 1.6mmm plate,pipe etc. and up.. You can either purge with TIG so that the welding looks the same on both sides..

 

I want to weld stainless 420J2 (harden) with 430 but could not find the right process to avoid the corrosive resistance problem after welding. The heating at the welding line has reduced corrosive resistance. Any technique to deal with this problem. Thank in advance.

 

[JLAU]

To Sinchai,
I trust you have checked that the 430 is passivated compared with the 420J2???
The base material (420) is oxidised next to the weld. This oxide layer impairs the corrosive resistivity and needs to be removed, either mechanically by grinding or by acid cleaning. There are some very good pickling pastes around for this purpose, try contacting your supplier of welding material.

Best of luck
John Laustsen

 

[pandithan]

if you use the process of shielded metal arc welding with good welder there would not be any diference in time

 

i used to soldering new stainless plate it can be done but in used plate it cant tell me how to do thanks