#9 bar broke while bending
#9 bar broke while bending
(OP)
I had a #9 bar bend at 90 degree. There were total 56. 4 of them were broken while a Labour tried to move them for adjustment.Any thoughts on that, how concerned u r with the quality of steel or wrokmanship.






RE: #9 bar broke while bending
Rebar shouldn't be that brittle.
You might want to get a metallurgist if the local lab doesn't do that. Would be good to check the grain characteristics and inclusions near the point of failure.
Rebar is usually made from recycled scrap steel and has the potential to have non-metallic and non-ferrous metal inclusions in it. After all, they toss entire smashed cars (some of them get chopped into smaller pieces before being incinerated) into the furnace and the crud floats to the top of the molten steel as slag.
RE: #9 bar broke while bending
RE: #9 bar broke while bending
Ron- your comments on source of rebar are correct, but keep in mind this is the source of a lot of steel (ie, structural steel, plate), not just rebar. This is seldom a problem in plate work.
RE: #9 bar broke while bending
RE: #9 bar broke while bending
RE: #9 bar broke while bending
or
2) The bars could have been improperly "adjusted" in the field using a pipe or flame or both and the bars are now damaged at the bend.