Characteristic
Galvanized welded wire mesh is the most widely used in the market, including electro galvanizing and hot-dip galvanizing.Electro galvanized (EG) is a cost saving way in galvanizing comparing to hot dipped galvanized(HDG), HDG performs much better in rust-resistance. It is decided by the different zinc volume on the wire surface.
There are fours types of welded wire mesh according to the zinc volume and how to galvanize.
1.Electro galvanized before welding
2.Electro galvanized after welding
3.Hot dipped galvanized before welding
4.Hot dipped galvanized after welding
Due to the burning of the zinc from the galvanized wire surface while welding, only under galvanized after welding process, the intersection parts will be covered with zinc protection, which is not easily to get rusted.
Zinc volume is the main factor that decides the performance of corrosion resistance. The chart below shows the character of quality and cost reference for different galvanization.
Type
|
Zinc
|
Price
|
Performance
|
Electro-galvanized before welded
|
10-20g/sqm
|
Lowest
|
AAA
|
Electro-galvanized after welded
|
20-30g/sqm
|
Lower
|
AAAA
|
Hot dipped galvanized before welded
|
50-80g/sqm or more
|
Middle
|
AAAA
|
Hot dipped galvanized after welded
|
Over 200g/sqm
|
Highest
|
AAAAA
|