If premixed gases are procured from reputed manufacturers , it should not be a concern. What's the gas mix: Ar+2% N2 or Ar+5%N2 ?
Higher percentage of Nitrogen in the gas mix may cause porosities in DSS welds. Also there are many other factors also, which could cause porosities in DSS welds. One has to see everything in totality.
Thanks.
P.Goswami.P.Eng, IWE.
Welding & Metallurgical Specialist
Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/
Email:pgoswami@quickclic.net,pradip.goswami@gmail.com
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Welding and material
Sent: January 22, 2018 11:14 PM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:27277] Mixture Gas Ar/N2
My name is Abi, I've the problem about mixture gas Ar/N2, each my welder performed welding on te Material DSS which used mixture gas Ar/N2, always occured porosity on each welded. Does it mix gas can cause porosity defect ???????????????
Thanks
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