Friday, September 24, 2010

Re: [MW:7184] EFFECT OF GAS MIXTURE ON DELTA FERRITE

Dear Bhavesh,
309L mo welding consumable may contain 12to 15% ferrite but barrier layer will have low ferrite due to dilution from carbon steel particularly due to increase of carbon in barrier layer.
vanchi
On Fri, Sep 24, 2010 at 4:04 PM, JIGO <bhaveshpatel.me@gmail.com> wrote:
Dear All,

Generally after barrier layer with SS309LMo we have got more than 10 %
ferrite but with following condition mentioned below i have got
ferrite content in between 1.8 ~ 3.8 FN.


Process : FCAW
Layer : Barrier Layer
Consumable : E309MoLT0-1
Gas : Argon(80%) + CO2 (20%)

Current : 200 - 215 Amp
Voltage : 30 - 32
Speed : 250 mm/min.


Kindly share what should be the reason behind the same.

Regards,
Bhavesh

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

No comments:

[MW:34919] Welder qualification certificate

Dear All     anyone can share a format for welder certificate and card format        Thanks & Best Regards Saleem manhappulath Mob:+9665...