Sorry for late reply- work is crazy at the moment!JC - where did you get the “better value” Argon - is it a nationwide operation like Hobbyweld? I currently rent a BOC cylinder for my MIG welder, but use so little gas it’s not really viable so I am planning on going for a rent-free cylinder and Hobbyweld was the obvious alternative. I am planning on a TIG welder too - I was able to produce decent bodywork welding with oxy-acetylene in my 20s and to my eyes TIG is comparable, certainly in the malleability of the welds.
I started with a new bottle of Argon from a hobbyweld distributor in NI. Then a few days later when I connected a new reg with bottle gauge it was empty!! Long story short all Hobbyweld cylinders at the depot tested the same way - empty. So I got a full refund. And I have heard of people in England discovering the same thing! Something going on - best avoid Hobbyweld.
See price comparison below also:
Hobbyweld 9L @ 137 bar = 1.28m3 volume. £78.99 refill cost = £61.71 per m3 Argon.
Autoparts store 10L @ 200 bar = 2.07m3 volume. £35.75 refill cost = £17.18 per m3 Argon.
I got my cylinder from a local autoparts store as above prices. No issues it was a completely full bottle on my guage so all good.
For you in England maybe try Adams or SGS gas stockists.
Note also that TIG welding requires a 100% Argon mix. Your MIG requires a different bottle - I run Co2 in mine but other mixes are available.
There are cheap DC only TIG welders on amazon etc. These will only weld mild steel. So I went for a AC / DC Tig welder which covers all bases and had all pro features such as a pedal.
Full AC DC machines are prohibitively expensive for home use. About £800 starting point for any branded machine. Keep an eye out on ebay and gumtree you may find a good used AC DC welder for sale. Better go for a name branded good used machine VS a no name China amazon one IMO.
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