Brass and Steel

  1. Barry Hoys Member

    Messages:
    32
    Location:
    Manchester UK
    If I tried to weld brass onto mild steel with a normal Mig setup, would it work? The welds will be hidden so don't need to look great. What would be the normal approach to fixing 2 different types of metal together?

    Failing that can anyone recommend a glue that will form a good bond between brass and steel?

    Cheers
     
  2. johnser

    johnser Member

    Messages:
    1,813
    Location:
    North Cornwall
    I accidentally tried to weld a brass tube to steel once (it was chromed). It made a mess. Some of the mess intermingled and held the two bits together somewhat but I thing friction was doing the majority of the holding as opposed to any kind of fusion.

    Brazing would work.
     
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  3. hotponyshoes Member

    Messages:
    1,510
    Location:
    Somerset. Uk
    Plenty of glues that will do the job, what's the application?
     
  4. Barry Hoys Member

    Messages:
    32
    Location:
    Manchester UK
    It's to fix a brass hinge onto a steel frame. Glue would prob work as it's not taking any significant weight.
     
  5. ronan

    ronan Forum Supporter

    Messages:
    9,251
    dublin
    Solder it , even soft lead based solder should be pretty strong.
     
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  6. Munkul Member

    Messages:
    1,006
    Cumbria, UK
    steel mig will not work. It needs to be brazed, soldered or glued.
     
  7. hotponyshoes Member

    Messages:
    1,510
    Location:
    Somerset. Uk
    3m scotch weld metal adhesive
     
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  8. bourbon Member

    Messages:
    528
    Location:
    Lichfield UK
    Plug weld through the screw holes?
     
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  9. grim_d

    grim_d Forum Supporter

    Messages:
    1,996
    Location:
    Scotland - Ayrshire
    Scotch welds are something else. The rest of the adhesives industry has a lot of catching up to do.
     
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  10. Maker

    Maker nEw mEmBeR

    Messages:
    6,899
    Location:
    Don't ask questions
    Bolt it? :dontknow:
     
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  11. Barry Hoys Member

    Messages:
    32
    Location:
    Manchester UK
    Cheers everyone, prob try that scotch weld
     
  12. eLuSiVeMiTe

    eLuSiVeMiTe Forum Supporter

    Messages:
    9,657
    Location:
    Bedfordshire England
    If it's light load could probably drill and tap for countersunk bolts.

    Or use a weld on hinge and ditch the brass.
     
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  13. hotponyshoes Member

    Messages:
    1,510
    Location:
    Somerset. Uk
    If you follow the instructions perfectly for the 3m stuff you will rip metal before the bond gives up.
     
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  14. Pigeon_Droppings2 Member

    Messages:
    2,081
    Location:
    london
    Would mig braze wire work (CuSi wire...its bloomin expensive though)?

    I've used mig braze to join mild/stainless but never tried it on brass!
     
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  15. Richard.

    Richard. Member

    Messages:
    18,203
    Location:
    Cambridgeshire
    A tig or gas braze would provide the nicest joint.
    Here’s an example of a bank stick I made for my fishing.
    The brass threaded bush I made is tig brazed to the steel rod. For a tidy job I machined the brazed joint into a step to make it look jointless but I can assure you it’s brazed and it’s solid.
     
    • 3AE824E4-932B-412B-9438-830534FD9A5E.jpeg
  16. hotponyshoes Member

    Messages:
    1,510
    Location:
    Somerset. Uk
    I have got a roll of cusi .8 mig wire I could chop a bit off if you want to try grazing it?
     
  17. 500e

    500e Always buy fire insurance a flood is hard to start

    Messages:
    4,060
    Location:
    SWest UK
    Any "3M" or "Lord" product is going to be Expensive unless you can find a user with a bit left or you have an ongoing use,most of those types of adhesives have storage life.some as short as 6 months once open
    @richard said "A tig or gas braze would provide the nicest joint".
     
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  18. Barry Hoys Member

    Messages:
    32
    Location:
    Manchester UK
    I'll give the scotch weld a try but thanks anyway
     
  19. 500e

    500e Always buy fire insurance a flood is hard to start

    Messages:
    4,060
    Location:
    SWest UK
    One of the tabby's Picture 005.jpg
     
  20. hotponyshoes Member

    Messages:
    1,510
    Location:
    Somerset. Uk
    https://www.selfadhesive.co.uk/scot...xI6OPUSLVSetnrxSJ-aswmd-in820HIsaAoXnEALw_wcB

    15 quid. Dont bother about the mixing tips, I just dispense into a plastic pint glass and mix with a lollipop stick. I would buy the pusher as well if you are using it much (or the gun if you are using it regularly) but if it's a one-off job push it out manually with a socket the right size on an extension bar.
    The ratios need to be correct so either measure the amount dispensed from one side before pushing the other or mix up the whole tube in one go
     
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