[MW:23705] Backing Gas for SS Pipe Welding

Dear Experts,

I have read WPS/PQR and I found that on PQR mentioned use backing gas (argon) with argon but on WPS without backing gas (argon).

Please advise to me, this WPS/PQR approved or not?

Thanks & Regards

Winarko

winarko@pp-epc.com

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