Both are used for Electric Poles and Pre-Stressed Concrete Poles.
Diameter 4.00 + 0.05mm
UTS - 1715 N/mm2 (Min)
| at 0.2% extn. | Min. 85% of tensile strength |
| % Elongation | Min. 3.0% at 200mm gauge length |
| Reverse Bend | Min. 3 Bends |
| Indentations | as per clause 4.2 of IS - 6003 |
| Relaxation test |
100 hours, once in a month & 1000 hours once in a year for 100 hrs. - Max. loss in applied load - 3.5% for 100 hrs. - Max. loss in applied load - 5.0% |
