Discontinuous surface cracks appeared on steel rebars
Discontinuous surface cracks appeared on steel rebars
(OP)
I'm working as a quality control engineer in EZDK company (Egypt) which produce deformed steel rebars. We use QTB technology for producing rebars. Recently, discontinuous cracks appeared on the Deformed 12 mm rebars surface. Micro structure test showed that the crack depth is about 0.8 mm. I need to know the possible reasons could lead to existence of such cracks.





RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
If you rolled the rebars yourself, where did the raw material come from, and how do you know absolutely that it (the raw material that was melted into your rebar) is any good? What was your material QA and lab test on the source?
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
http://pmpaspeakingofprecision.com/2012/05/15/laps...
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
RE: Discontinuous surface cracks appeared on steel rebars
http://pmpaspeakingofprecision.com/2012/05/24/seam...
http://pmpaspeakingofprecision.com/tag/steel-defec...
http://www.ijmer.com/papers/Vol3_Issue2/AW32736738...
http://www.siderurgia.org.ar/pdf/32.pdf
RE: Discontinuous surface cracks appeared on steel rebars