1. Galvanized Steel Sheet Coil description
It is a steel product with a zinc-iron alloy coating on the steel surface, produced by the continuous
hot-dipping process.To achieve the required zinc coating thickness for different coating specifications
we need to pass a hot dipped strip through a variable low pressure, high volume air stream
2. Galvanized Steel Sheet Coil technical process
After cleaning and acid pickling, the steel coil is submerged in melted zinc, a chemical reaction
permanently bonds the zinc. The zinc actually permanently becomes a part of it and the successive
Layers are a mixture of zinc and iron. Galvannealed steel sheet is a special type of steel coil used
In a number of different applications within fabrication and manufacturing environments
3. Galvanized Steel Sheet Coil flow chart
Decoiler--- Shearer ----welder ----pre-treatment ----entry looper--- annealing furnace--- zinc pot
---- air cooling tower ----water cooler--- leveller---- post treatment ---exit looper crimper.
4. Galvanized Steel Sheet Coil main application
1) Automotive Parts
2) Decking
3) Commercial Doors
4) Electrical Box
5) Steel Furniture
| Standard |
Steel Grades |
Application |
| GB/T 2518-2004 |
01 |
Common commercial application |
| 02 |
For mechanical engagement |
| 03 |
For stamping |
| 04 |
For deep drawing |
| 220,250,280,320,350 |
For structural components |
| JIS G 3302-1998 |
SGCC |
Common application |
| SGCD1 |
For stamping |
| SGCD2 |
For deep drawing |
| DIN EN 10142-2000 |
DX51D+Z |
For common application and mechanical engagement |
| DX52D+Z |
For stamping |
| DX53D+Z |
For deep drawing |
| DIN EN 10147-2000 |
S220GD+Z |
For structural components |
| S250GD+Z |
| S280GD+Z |
| S320GD+Z |
| S350GD+Z |
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