Phil99vette

iTrader: (11)

Anyone have any tips? I've looked for some 5" mild steel u-bends and can only find aluminized ones.
Phil

chino_man279

iTrader: (7)

I cannot find any U-bends in mild steel, but there are all kinds of places that make them in 90 elbows. I am sure one of these places can make you a 180.

Edit: Here is a place that does custom bending up to 8" pipe. Just tell them what you want and get a quote.
http://www.ampcotubes.com/index.html

wkdivr

iTrader: (8)

For best results, try your best to get the aluminumized coating off. I'd use a sanding disc, not a hard grinding disc.

M3 Muscle

Use a flap disc to grind it off....then you are welding mild steel.

cws T/A

iTrader: (3)

Grind off the galvinize coating , bevel the ends ,fit it up , tack it up ,start welding. I weld with a stickrod[ 6010/ then 7018 ] at work ,a mig would be cleaner .

G-Body

iTrader: (4)

Use a mig welder.

I didn`t even think about it till I saw this thread, but my exhaust was aluminized steel. When I welded it together I did no surface prep oh well it didn`t seem to hurt anything. I scuffed the edges with a scotchbrite pad and fired up the mig. I didn`t have any problems so as long as you clean the aluminized coating off you should end up with great welds.

xfactor_pitbulls

iTrader: (16)

18 gauge tube and you are going to try and root with 6010? Why in the world would you do that? 6010 is a digging rod. If you used an arc electrode just run it out with 3/32" 7018. The simple and better way is to use a mig or tig if you have one. 1/16" filler rod for tig and run the temp down to about 10 amps higher than your first amperage where a pool forms.

bumpin_records

iTrader: (19)

man you use a 6010 on 18 guage you will cut threw the metal. 7018 will be good and it look nicer than that violent 6010. that rod is a deep penetration rod for thick metal. I can cut threw 1/2' steel plate with that 6010. U will be better off using a mig welder anyway

CharlieCobra03

Hmm, that place looks like a good source for custom BBC turbo headers.

00454sscamaro

if you got a sand blaster , it would make quick work of the aluminum coating.. if you got a mig i dont think id even bother unless its real thick or giving a crappy weld. .. i just mig'd a peice of stainless to my aluminized x pipe.worked great.

RiceKilla

iTrader: (15)

Just sanded the coating off. O

n my old car I had a shop weld my exhaust, before I knew how to weld. It was aluminized steel and I am pretty damn sure they did not take off the coating and it held on well, had the car for two years until I sold it.

Make sure to wear a mask.