Description

Hot dip galvanized steel coil is a common metallic material, produced by hot-dip galvanizing ordinary carbon steel coils. Hot-dip galvanizing is a process that involves immersing a steel coil in molten zinc, coating its surface with a protective layer of zinc. This treatment effectively improves the steel’s corrosion resistance, extends its service life, and significantly improves its appearance and processing performance. Z275 Hot Dip Galvanized Steel Coil is a hot-selling high-zinc coated galvanized steel coil product.

The manufacturing process of hot dip galvanized steel coil mainly includes the following steps: First, the raw steel coil undergoes surface treatment, including degreasing, pickling, and other surface treatments to ensure a clean and smooth surface. Next, the treated steel coil is immersed in molten zinc using hot-dip galvanizing equipment, resulting in a uniform zinc coating. Finally, the product undergoes cold rolling, trimming, and cutting to become a qualified hot-dip galvanized coil.

Features of Hot Dip Galvanized Steel Coil:

Firstly, Hot dip galvanized steel coil possesses excellent corrosion resistance, maintaining a good surface condition for extended periods in humid, acidic, and alkaline environments. Secondly, its smooth and glossy surface enhances the aesthetics and commercial value of products. Furthermore, hot dip galvanized coils exhibit excellent plastic deformation and weldability during processing, meeting various complex processing requirements.

Applications of Hot Dip Galvanized Steel Coil:

Hot-dip galvanized steel coils are widely used in construction, home furnishings, transportation, agriculture, and home appliances, such as in the manufacture of steel structures, steel pipes, furniture, automotive parts, agricultural equipment, and water heaters.

Due to its weather resistance and aesthetic appeal, hot-dip galvanized coils also perform well in outdoor applications and decoration. In the construction industry, hot-dip galvanized coils are widely used in the manufacture of building structures, roofing materials, and interior and exterior decorative materials, such as steel plates, galvanized steel pipes, stair railings, and balustrades.

In summary, hot dip galvanized steel coil is a high-performance, versatile metallic material with excellent corrosion resistance, aesthetically pleasing surface, and good machinability, making it widely used in production and manufacturing across various industries. With continuous advancements in technology and increasing market demand, the future development prospects of hot-dip galvanized coils are even brighter.

Specifications of Galvanized Steel Coil:

Usage	Grade	Yield Strength (MPA)	Tensile Strength (MPA)	Elongation rate %
Punching galvanized steel	DX51D+Z	~	270-500	>=20
	DX52D+Z	140-300	270-420	>=22
	DX53D+Z	140-260	270-380	>=26
	DX54D+Z	140-220	270-350	>=30
Structure galvanized steel	S220GD+Z	>=220	>=300	>=18
	S250GD+Z	>=250	>=330	>=17
	S280GD+Z	>=280	>=360	>=16
	S320GD+Z	>=320	>=390	>=15
	S350GD+Z	>=350	>=420	>=14
	S400GD+Z	>=400	>=470	~
	S500GD+Z	>=500	>=530	~
	S550GD+Z	>=550	>=560	~

Standards and Classifications

Technical Standard	EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653
Steel Grade	Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement
Type	Coil/Sheet/Plate/Strip
Thickness	0.12-6.00mm,or customer’s requirement
Width	600mm-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), Lacquer sealing(L), Phosphating(P), Untreated(U)
Surface Structure	Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)
Quality	Approved by SGS,ISO
ID	508mm/610mm
Coil Weight	3-20 metric ton per coil
Package	Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer’s requirement
Export market	Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc