Does airgas accept these? are they ok to use with argon/c02 mix? do they have d.o.t. stamped on them somewhere?

Airgas locally would not fill ours. We had to find an alternative supplier. I don't know if it is rated for welding gas use.

Is this DOT certified?

Yes. but if your intention is to go to a gas exchange facility then save your money and buy one from them. I was disappointed for not knowing before hand that when I bring mine to be filled with dry nitrogen that my nice new bottle will taken in exchange for a filled crappy bottle of theirs.

Can this be used for MIG welding?

Yes. I use it for tig welding that is 100% argon. And exchange it at Norco when it is empty.

40 Cu Ft Argon Nitrogen Helium Welding Gas Cylinder Tank

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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₨13151

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate your welding game with the ultimate high-pressure powerhouse!

FRESH READY TO USE - All cylinders within 2 years of hydrotest date for guaranteed performance
CERTIFIED COMPLIANT - Meets strict DOT and ISO regulations to keep your workspace legit
CONTINENTAL US SHIPPING - Fast, reliable delivery across the Lower 48 states—no surprises
MASSIVE 40 CU FT CAPACITY - Power through your toughest welds without constant refills
INDUSTRY LEADING SAFETY VALVE - Rated at 3,360 psi for maximum reliability and peace of mind

This 40 cu/ft Argon-Nitrogen-Helium welding gas cylinder tank features a robust steel build with a 3,360 psi safety valve, stamped with a 10-year hydrotest date to ensure compliance with DOT and ISO standards. Designed for professional welders, it offers a large capacity and fresh certification, shipped reliably across the continental US.

Specifications

ASIN	B00I4Z66T2
Assembled Diameter	7 inches
Best Sellers Rank	#1,048,277 in Automotive ( See Top 100 in Automotive ) #65 in Welding Fuel Cylinders
Color	Turquoise
Customer Reviews	4.5 4.5 out of 5 stars (83)
Cutting Diameter	7 inches
Date First Available	August 31, 2015
Installation Method	arc-welding
Item Package Quantity	1
Item Weight	28 pounds
Manufacturer	Weldfabulous
Part Number	ZZ40ARS
Size	40 Cu./Ft.

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