Galvanized Wire

While manufacturing G.I. Wires, annealing, picking procedures are mostly carried out. Following the high-tech methodology, G.I. Wires are produced through H.B. Wires. Galvanizing methods are dome with 99.9 percent pure electronic zinc. Prior to galvanizing, the activities like pickles and rinse are carried out thoroughly and flex coating is applied in the wires which helps zinc to stick in the base metal effectively. With the quality recognition of IS 4826/1979 and NS 163,165/ 645. Jagdamba has been manufacturing G.I. Wires.

Following tests are carried out in wires:

  • Measurement of Zinc coat
  • Equality of Zinc coat
  • Stickiness of Zinc coat
  • Tensile strength
  • Wrapping test

 

Quality Assurance

To ensure our valued customers continuously with the quality through the strategic utilization of innovative technology, skilled manpower and available sources is the major aim of our quality assurance. We are committed in bringing the changes in line with the changing needs and aspirations of our valued customers along with the betterment of cooperation among all the staffs associated with the company.

Hard Black Wires (H.B)                                                                                                                 as per NS 169-2045

TOLERANCE UNITS

Size Tolerance (mm)
Up to 0.25 0.010
Over0.25 to 0.50 0.015
Over 0.50 to 1.0 0.020
Over1.0 to 1.5 0.030
Over 1.5 to 2.5 0.040
Over 2.5 to 5.0 0.050
Over 5.0 0.060

 

TOLERANCE STRENGTH

Condition Tensile Strength N/
Annealed (max.) 270 – 500
Soft Drawn 300 – 500
¼ Hard 450 – 500
½ Hard 600 – 850
Hard 700 – 950

 

Tensile Strength (Low Carbon Steel Wires)

Wire Diameter (mm) Tensile Strength (Kg/ )
Steel Wire Annealed Wire Galvanized Wire Steel Wire for Nail Making
1.60 – 1.80 60 – 120 30 – 50 30 -55 75 – 130
1.80 – 2.00 60 – 120 30 – 50 30 -55 75 – 130
2.00 – 2.30 60 – 120 30 – 50 30 -55 75 – 130
2.30 – 2.60 55 – 110 30 – 50 30 -55 75 -115
2.60 – 2.90 55 – 110 30 – 50 30 -55 75 -115
2.90 – 3.20 55 – 110 30 – 50 30 -55 75 -115
3.20 – 3.50 45 – 95 30 – 50 30 -55 60 – 105
3.50 – 4.00 45 – 95 30 – 50 30 -55 60 – 105
4.00 – 4.50 45 – 95 30 – 50 30 -55 60 – 105
4.50 – 5.00 40 – 85 30 – 50 30 -55 55 – 95
5.00 – 5.50 40 – 85 30 – 50 30 -55 55 – 95

 

 

Minimum weight of Zinc coating per unit surface of uncoated wire                         as per NS 163/ 169 – 2045

Gauge Diameter (mm) Light Coating ( gms/ ) Medium Coating            (gms/ ) Hard Coating ( gms/ )
Soft Hard Soft Hard
SWG 6 4.877 130 100 155 290 270
SWG 7 4.470 130 100 155 290 270
SWG 8 4.064 130 100 155 290 270
SWG 9 3.658 120 90 135 280 260
SWG 10 3.251 110 80 135 270 250
SWG 11 2.946 100 70 120 240 250
SWG 12 2.642 90 70 120 260 230
SWG 13 2.337 80 70 110 260 230
SWG 14 2.032 80 60 105 240 210
SWG 15 2.032 80 60 105 240 210
SWG 16 2.032 80 60 105 240 210

 

Tolerance on wire diameter of NS 163, 169/ 045 light, medium, and heavy coated galvanized low carbon wire are + 2.5%

 

UNIFORMITY TEST (for low carbon G.I. Wire)                                                                     as per NS 163/ 169 – 2045

Gauge Light Coated G.I.Wires Uniformity Test No. of dips Medium Coated G.I. Wires Uniformity Test No. of dips Heavy Coated G.I. Wires Uniformity Test No. of dips
Soft Hard     Soft Hard
1 min ½ min 1 min ½ min 1 min ½ min 1 min ½ min 1 min ½ min
6 2 1 1 2 3 1 3 1
7 2 1 1 2 3 1 3 1
8 2 1 1 2 3 1 3 1
9 1 1 1 1 1 1 3 1 3
10 1 1 1 1 1 3 1 3
11 1 1 1 1 1 3 1 3
12 1 1 1 1 1 3 2
13 1 1 1 1 1 3 2 1
14 1 1 1 3 2