Product Profile : High Tensile Wire and Strand for pre-stresses in concrete structure by virtue of improved proportional limit, higher ductility combined with higher strengths. They may be supplied in drawn or drawn straightened or stress relieved conditions. They can also be supplied in plain or indented finish. These are manufactured to different international standards and to the specific requirement of each customer.
Generally used in : Construction of bridges, dams, buildings, nuclear reactor vessels, poles pipes, railway sleepers, etc.
Quality :
Application : Pre-stressed concrete wire find applications in:
Testing Attributes : Size, breaking Load, Tensile strength, Elongation, Bends, Yield Strength, Modulus of Elasticity and any other customer specific requirements
Uncoated stress relieved strand for pre-stress concrete (3mm,3ply)
IS : 6006
Nominal cross sectional area of strand | 21.21mm2 |
Nominal mass of strand (9m/meter) | 1669m/meter |
Breaking load of strand | 38.25kn (min) |
Proof load of strand | 32.460 (min) |
Lay lenth of strand | 72 to 108 mm |
% Elongation | min. 3.5% at 200 mm G.L. |
Relaxation test #FFF7E6 | For 100 hrs., max. loss in applied load - 3.5% for 1000 hrs., max loss in applied load - 5.0% |
IS : 6003
Proof Stress
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% |
Plain hard drawn steel wire for pre-stressed concrete for home pipes
IS : 1785 (PT2)
Diameter | 4.0 + 0.03 mm |
UTS | 1715 N/mm2 (min.) |
Reverse Bend | Min. 3 Bends |
% Elongation | Mn 3.0% at 200mm Gauge length |
Proof Stress | 131.25 wt/mm2 (min.) |