Mattress spring steel wire can be classified into hot-dipped galvanized iron wire and electro galvanized wire according to the differences of processing.
Hot-Dipped Galvanized Iron Wire
Material: the main material of hot-dipped galvanized iron wire is super carbon steel.
Processing by drawing, hot-dipped galvanizing
Thick zinc-coating layer
Super in corrosion resistance
Firm coating layer
Sizes of hot-dipped galvanized wire: 8BWG to 36BWG(wire diameter ranging from 3.8mm to 0.19mm)
Applications:
This kind of iron wire is widely used in communication devices, medical treatment equipment, weaving of wire mesh, making of brushes, steel rope, filter wire mesh, high pressure pipes, construction, arts and crafts, etc.
Electro Galvanized Wire
Material: the main material of electro galvanized wire is low carbon steel wire
Processing by drawing and electric galvanizing.
Sizes of electro galvanized wire: 8BWG to 38BWG(wire diameter ranging from 3.8mm to 0.15mm)
Applications: weaving of wire mesh, fencing for expressway and construction.
Wire Gauge | SWG in mm | BWG in mm | In Metric System 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 |
23# to 34# also available for galvanized iron wire. |