High Strength Dx53d Z180-Z350+ Galvanized Steel Coil For Construction - Knowledge

DX53D+Z is a high-strength, high-formability hot-dip galvanized steel coil with zinc layer coverage ranging from Z180 (high zinc layer) to Z350+ (ultra-high zinc layer), designed for extreme corrosive environments and long life requirements. This product combines DX53D high-quality substrate and thick zinc layer anti-corrosion technology, and is widely used in construction, transportation, energy and other fields.

DX53D+Z Steel Coil Chemical Composition：

element	C	Mn	P	S	Si	Al	Ti/Nb
Content range	≤0.12%	≤0.60%	≤0.035%	≤0.025%	≤0.05%	≥0.020%	Optional trace addition

Specifications of High Strength Dx53d Z180-Z350+ Galvanized Steel Coil

Material	ASTM A653, DX51D,DX52D DX53D DX54D SGCC
Zinc Coating	40-275g/m2
Thickness	0.2 - 3.0mm
Width	600-1500 mm
Coil ID	508/610mm
Coil weight	3-8 tons
Surface Structure	Mini/Big Spangle / Zero Spangle
Surface Treatment	Anti-Finger printing ,Chromated, oiled/ non-oiled
Package	standard export package
Hardness	soft (normal), hard, full hard(G300-G550)
Custom made	Accept customization
Country of origin	China

Dx53d Z180-Z350+ Galvanized Steel Coil Stock

Dx53d comparison of different zinc layers

Zinc layer grade	Code (single side)	Zinc layer weight (g/m²)	Service life	Typical galvanizing process
Low zinc layer	Z60,Z80	60~80	5~10 years	Electrogalvanized (EG), partially hot-dip galvanized
Medium zinc layer	Z120,Z150	120~150	10~20 years	Hot-dip galvanized (HDG)
High zinc layer	Z180,Z275	180~275	20~50 years	Hot-dip galvanized (HDG)
Ultra-high zinc layer	Z350,Z450	≥350	More than 50 years	Hot-dip galvanized (HDG)

Advantages
DX53D+Z has super corrosion resistance, and the Z180-Z350+ zinc layer provides sacrificial anode protection + physical barrier, which is far superior to ordinary galvanized sheets (such as Z60).
DX53D substrate is suitable for stamping, bending, deep drawing, and reduces the risk of processing cracking.
Z350+ coating can replace some stainless steel in marine environments to reduce costs.
Complies with EN 10346 standards, and chromium-free passivation (environmentally friendly) is optional.

Applications
(1) Construction and Infrastructure
Coastal buildings: bridge steel structures, dock guard plates.
Industrial plants: chemical plant roofs, enclosures for high-corrosion areas.
Public facilities: tunnel linings, highway sound barriers.
(2) Transportation and Energy
Automotive industry: heavy truck chassis, exhaust pipes (high-temperature resistant coating).
Power equipment: offshore wind turbine towers, substation steel structures.
Petrochemicals: tank outer walls, pipeline protection.
(3) Special fields
Marine engineering: ship decks, offshore platform brackets.
Military facilities: radar bases, field equipment casings.

Dx53d Z180-Z350+ Galvanized Steel Coil

Dx53d Z180-Z350+ Galvanized Steel Coil Processing Precautions:

It is recommended to increase the arc radius when bending high zinc layer (Z275+) to prevent the zinc layer from cracking.

Ventilation is required during welding to prevent zinc vapor from affecting the quality of the weld.

Dx53d Z180-Z350+ GI Steel Coil Stock

GNEE STEEL takes pride in offering these premium steel coil ,produced using state-of-the-art technology and rigorous quality control measures. Our high strength Dx53d Z180-Z350+ hot dip galvanized steel coils are ideal for applications in construction, transportation, energy and more, offering exceptional strength and reliability.Available in a range of thicknesses and widths, they can be customized to meet specific project requirements. With a commitment to excellence and customer satisfaction, GNEE STEEL guarantees that our products will exceed your expectations in terms of quality and performance.
In addition, GNEE also produces various specifications of galvanized coils, galvanized sheets, galvanized pipes, cold rolled coils, etc., which can be customized.

Dx53d Z180-Z350+ Galvanized Steel