Hot dip galvanized steel coil
Hot dip galvanized steel coil is a steel sheet product in which a layer of zinc is coated on the surface of a ferrous substrate to improve its corrosion resistance and extend its service life.
Sacrificial Anodic Protection: Zinc is chemically more reactive than iron. When the coating is damaged or exposed to a corrosive environment, the zinc corrodes before the iron (sacrificing itself), thereby protecting the underlying steel substrate from rust.
Physical Barrier Protection: A complete zinc layer effectively isolates the steel substrate from oxygen, moisture, and other corrosive media in the air.
Dual Protection: The combination of sacrificial anodic protection and physical barrier protection provides extremely long-lasting corrosion protection, with a service life several or even dozens of times longer than ungalvanized steel.
The use of hot dipped galvanized steel coils are not only a process with obvious characteristics, but also has outstanding economic value. The cost of the process itself is not high, and the economic practicality is relatively strong. And its own in the process is a comprehensive ring, to avoid the use of toxic and harmful chemicals, the subsequent waste can also be recycled, reducing the possibility of environmental pollution.
Hot-dip galvanized sheet coils are commonly used in construction. In building structures, hot-dip galvanized coil can be used to manufacture components such as roofs, walls and floors to improve their corrosion resistance and extend their service life. Meanwhile, in outdoor environments, hot-dip galvanized sheet coils can also be used to manufacture metal components such as stair railings, balustrades, doors and windows, which are favored for their weather resistance and aesthetics.
Hot-dip galvanized sheet coils are also widely used in the industrial sector. In a variety of industrial equipment and machinery, hot-dip galvanized sheet coil can be used to manufacture containers, pipelines, steel frames and other parts to meet the requirements of its corrosion and rust resistance. In addition, hot-dip galvanized sheet coils are also commonly used in the petroleum, chemical, and electric power industries to manufacture components such as conveying pipelines, storage tanks, and equipment housings.
- Product Specifications
|
Name |
Galvanized Coil |
|
Standard |
EN10147,EN10142,DIN17162,JIS G3302,ASTM A653,JISG3302,ASTM A653M, EN10327,DIN17162,EN10142,EN10292 |
|
Grade |
DX51D,DX52D,DX53D,DX54D,S220GD,S250GD,S280GD,S350GD,S350GD,S550GD, SGCC,SGHC,SGCH,SGH340,SGH400,SGH440,SGH490,SGH540,SGCD1,SGCD2,SGCD3, SGC340,SGC490,SGC570,SQ CR22(230),SQ CR22(255),SQ CR40(275),SQ CR(340),SQ CR80(550),CQ,FS,DDS,EDDS,SQ CR33(230),SQ CR37(255),SQ CR40(275),SQ CE50(340),SQ CR80(550) or Customer's Requirement |
|
Thickness |
0.12-3.00mm or customer's requirement |
|
Width |
100mm-1500mm according to customer's requirement |
|
Type of Coating |
Hot Dipped Galvanized Steel(HDGI) |
|
Zinc Coating |
30-275g/m² |
|
Surface Treatment |
Passivation(C),Oiling(O),Lacquersealing(L),Phosphating(P),Untreated(U),Galvanized,PVC,Black and color painting,transparent oil,anti rust oil |
|
Packing |
Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing,side guard piate,then wrapped by seven steel belt or according to customer's requirement |
- Chemical Composition
|
Standard |
Grade |
C |
Si |
Mn |
P |
S |
Ti |
|
Forcold Forming Chinese Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Forcold Forming Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
For Structure Japanese Standard |
SGC340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SGC400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
SGC490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
SGC510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
For Structure AISI Standard |
S220GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
