Some factories are specialized in making springs and everything linked to wire, for example hanger. In general, they use electro galvanized wire for spring or hangers. The electro galvanized wire diameters are 2.0 mm, 2.2 mm, 2.5 mm, 3.0 mm.
And other materials of galvanized steel spring wire, carbon steel wire are also used in hanger and spring.
Electro Galvanized Iron Wire | Hot-Dip Galvanized Wire | ||
---|---|---|---|
Specification | 0.2 mm - 4.0 mm | 0.55 mm - 5.0 mm | |
Zinc Rate | 7-18 g/m2 | 40g-365 g/m2 | |
Tensile Strength | 30-70 kg/mm2 | ||
Elongation Rate | 10%-25% | ||
Weight/Coil | 0.1-1000 kg/coil | ||
Packing | plastic inside and hessian woven outside, plastic inside and nylon woven outside |
wire gauge size | SWG (mm) | BWG (mm) | metric (mm) |
---|---|---|---|
8 | 4.06 | 4.19 | 4.00 |
9 | 3.66 | 3.76 | - |
10 | 3.25 | 3.40 | 3.50 |
11 | 2.95 | 3.05 | 3.00 |
12 | 2.64 | 2.77 | 2.80 |
13 | 2.34 | 2.41 | 2.50 |
14 | 2.03 | 2.11 | - |
15 | 1.83 | 1.83 | 1.80 |
16 | 1.63 | 1.65 | 1.65 |
17 | 1.42 | 1.47 | 1.40 |
18 | 1.22 | 1.25 | 1.20 |
19 | 1.02 | 1.07 | 1.00 |
20 | 0.91 | 0.89 | 0.90 |
21 | 0.81 | 0.813 | 0.80 |
22 | 0.71 | 0.711 | 0.70 |
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