We changed our privacy policy. Read more.
5

This looks like surface rust so you'll want to remove it. There are many rust removal products like Naval Jelly,etc. but I've found White vinegar to be just as good. Saturate the area with the vinegar and let it sit for 30 minutes and wipe off. A second or third coat may be necessary. Afterwards, prime the area and paint with a quality paint for steel. The ...


3

I'm too am a welder. User142029 is absolutely correct.Those joints are fine. It's rusting faster because it's not the same metal as the base material. The structural integrity is fine. I would clean it as best as i could with a wire wheel / cup and cold galvy spray it. Not much you can do about the underside without removal.


2

They should have re painted the beam or any parts where they removed galvanized painting along with the welds on the beam. All steel beams come galvanized painted to prevent rust from forming... To solve this problem I would recommend doing a good cleaning to remove all the rust and oxidation to the best of your ability, then go to your local home ...


2

There is significant corrosion present in the welds and the beam itself. Without further examination, it is impossible to determine the extent of the damage to the metals and the structural engineering impact. A competent (and licensed) engineer intimate with the properties of metal will need to evaluate this. Commercial engineering x-ray machines are ...


2

It is interesting to see that your weld joints have become rusty and seem deteriorated. Also, it is notable that both flanges have deformed (bulging) locally, the deformation could be caused by the rust pack (layers of rust steel), or worse, caused by over-stress. I think it needs more than just cleaning and repainting, which would not stop the process of ...


1

Totally cosmetic, has not, will not weaken because of future rust. The only corrosion in the home is caused by water when mopping the floor and splashing the bare steel. The uniform grey color of the steel beam indicates it has a zinc rich primer. Mill scale would be nearly black and not as uniform in color. When the weld was made it burned off the zinc ...


Only top voted, non community-wiki answers of a minimum length are eligible