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Thread: Welding rust 6010 or 7018
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2nd Feb 2022, 01:22 PM #1
Welding rust 6010 or 7018
I'm putting a new floor in a 2t trailer and doing some rust repairs , after i removed the old floor (mission) the angle frame is rusty rust , still thick steel but dimply rust all through it . My fluxcore no good for this job , so out comes the stick , is 6010 or 7018 rods better for rust ? i tried 6013 but is too pooris and didnt work , just made a mess.
What is the recommended angle when upside down overhead , is it poke it directly into the steel and drag it or angle the rod back and drag it ? only doing 3cm -5cm stitches and tacks. Is more amps better for rust or lesser amps ? Thoughts please
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2nd Feb 2022, 03:26 PM #2China
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Nothing is good for rust, do do yourself favour do it properly and remove the rust then your 6013 should be fine.
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2nd Feb 2022, 04:16 PM #3Senior Member
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I think I'd want to clean it up a lot more before evaluating the viability of welding it. Some of it looks so bad a 6010 would blow it away.
Do you have a welder that can run 6010?
Jack
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2nd Feb 2022, 04:30 PM #4
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2nd Feb 2022, 04:44 PM #5Senior Member
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Many modern welders won't run 6010 - it is not to do with the polarity. Have you tried? 6011 will be easier.
Have a look at this: https://www.esabna.com/us/en/news/ne...electrodes.cfm
Jack
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2nd Feb 2022, 05:47 PM #6
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2nd Feb 2022, 05:52 PM #7Senior Member
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2nd Feb 2022, 07:15 PM #8
I wouldn't waste my time. Just replace the angle.
Even with 5 hours labour and $200 of abrasives, you'll find yourself doing the job again in another 5 years when it rusts out, or you load falls thru it...
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2nd Feb 2022, 07:35 PM #9Most Valued Member
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Thanks CK you took the words out of my mouth. It's false economy to mess around with a trailer like that, do the job properly or take it to the scrap metal merchants.
I don't particularly like the drawbar and joints around it, it looks to me, a recipe for disaster???
If something goes wrong, ie it falls apart on the road, your insurance may not cover it/you!!!
You MIGHT get away with it, if it was a 6X4 750kg max, but 2 tonnes, NO WAY!!!!!
KrynTo grow old is mandatory, growing up is optional.
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2nd Feb 2022, 08:19 PM #10
Just relax guys its just heavy surface rust on the angle nothing structural or serious to worry about . The drawbar is fine and has no rust at all , the joints are the old chqr floor welds , the angle has plenty of meat on it under the rust. It's a big 12x6 trailer dual axle. The cross members are fine. Once the new floor goes down it will like brand new again . I bought the trailer as a project to practice welding on so it just a bit of fun. It has to pass a rego inspection so it will checked properly later.
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2nd Feb 2022, 09:30 PM #11Most Valued Member
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Going by your pic: https://metalworkforums.com/attachme...3&d=1643768097
That does NOT look healthy. Is it possible to power grind/wire brush it and then take the pic in the same position again, please. My comments were going by what I see. It might be different after a good clean.
Having dealt with trailers for nearly 50 years, I've seen some bodgie/dodgy repairs.
KrynTo grow old is mandatory, growing up is optional.
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2nd Feb 2022, 11:58 PM #12
You are correct it doesn't look healthy but its structurally ok imo , basically anything i couldn't penetrate with the welding pick is staying , if the pick goes through it then it gets replaced ,you can see the rusted wall and floor remains on the angle. Once i sand it that should look better. If the angle doesn't weld properly , worse case i'll glue and screw a 18mm plywood floor down , might seem a little dodgy but it works. The trailer is 20yrs old now but its still got plenty of life in it.
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3rd Feb 2022, 02:09 PM #13
Cleaned up ok. I used a demolition hammer with a chisel bit on the angle to help clean it up. Photo shows one of the 3 piles of rust. The rust removal and new floor should give it another 10-15 years of service.
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10th Feb 2022, 10:21 AM #14
Deck down , still gotta trim the rear floor on one side and do the sides , i ordered 3 sheets but only used 2 , there are 7 cross members so had a full day upside down welding underneath , also had a bit of splatter get into my ear , banged head on the axle trying to get it out , lol !
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