Thursday, May 20, 2010

Steel Bars in India

2 comon types of steel bars used are
  • Mild steel bars conforming to IS: 432
  • Cold-worked steel high strength deformed bars conforming to IS: 1786 (grade Fe 415 and grade Fe 500)
The numbers 415 and 500 indicate yield stresses 415 N/mm2 and 500 N/mm2 respectively

Grade Fe 415 and Fe 500 is being used most commonly nowadays because of higher yield stress and bond strength resulting in saving of steel quantity.This has limited the use of mild steel bars

Some companies have produced the thermo mechanically treated (TMT) and corrosion resistant steel (CRS) bars with added features.