Dx51D+Z80 Galvanized Steel Coil

Dx51D+Z80 galvanized steel coil is a European standard hot-dip gi steel coil. Its base material is stamping-grade low-carbon steel Dx51D, offering excellent cold-bend formability and suitable for deep processing. The surface zinc coating enhances the steel’s corrosion resistance, often resulting in a surface pattern known as spangles. It is a commonly used corrosion-resistant steel in the construction, home appliance, and automotive industries. Wanzhi Steel offers a wide range of Dx51D+Z80 products, including coils, strips, and sheets. If you are interested, welcome to contact us.

1250mm 0.12 – 0.4mm Dx51d HDG Coil

DX51D Z80 GI Coil

Specification

Item	Dx51D+Z80 galvanized steel coil
Place of Origin	Shandong, China
Delivery Time	18-28 days
Standard	AISI, ASTM, BS, DIN, JIS, GB, EN
Material	DX51D steel
Technique	Hot dipped galvanizing
Zn Coating	80g/m2 (double-sided)
Thickness	0.12 mm-2.0 mm
Width	10mm – 1,500mm
Length	Customizable
Coil Weight	3-8 tons or as per your requirements
Surface structure	Zero spangles, Small spangles, Regular spangles, Big spangles
Sample	Free Available
Payment term	TT 30% Advance + 70% Balance
Price Item	FOB, CIF, EXW, CFR, etc
Packing	Standard export packaging
Certification	ISO 9001, SGS, ABS, BV
MOQ	5 tons

Wanzhi-Spangles

Character interpretation

Dx51D (Substrate Material)

D: Cold forming flat products. This type of steel is primarily used for cold working processes such as bending and stamping at room temperature.
x: Base material classification symbol. Here, it specifically refers to “base material for hot-dip galvanizing,” indicating that this cold-rolled sheet is specifically suitable for hot-dip galvanizing.
51: Indicates the material’s stamping grade is ordinary stamping grade. This grade of steel has a low carbon content and good plasticity.
D: Quality grade/heat treatment condition. This grade is classified as “normal surface,” and minor defects such as scratches and indentations are permitted.

Z80 (Coating)

Z: The coating type is pure zinc. If it is ZF, it represents zinc-iron alloy coating. If it is ZA, it represents zinc-aluminum coating.
80: represents the coating weight per unit area. The total weight of the double-sided coating must be no less than 80 grams per square meter (g/m²). The single-sided coating thickness is approximately 5.6 microns (μm) per side.

Overall interpretation

Dx51D+Z80 indicates a low-carbon steel coil with excellent cold forming performance. It is hot-dip galvanized, and the total weight of the double-sided pure zinc coating is 80g/m2. It has good corrosion resistance and processing formability.

Factory Price Galvanized Steel Coil Z80

0.12mm-4mm Hot Cold Rolled Gi Coil for Building

Key Benefits

Stable Performance and Wide Applicability

Moderate yield and tensile strengths provide structural stability, suitable for most civilian and industrial applications, and prevent brittle fracture.

Excellent corrosion resistance and formability

The Z80 zinc coating delays rust and is suitable for non-extreme environments. Its smooth surface and excellent ductility make it suitable for a variety of common machining processes.

Adaptable Surface Quality

The smooth surface makes it suitable for applications requiring less decorative aesthetics and offers a variety of surface finishes.

Manageable Costs and Optimized Processing

Compared to products with high zinc coatings or special alloy coatings, it offers lower production costs and is suitable for mass production. It also provides an excellent coating substrate and is weldable.

Hot Dipped Galvanized Steel Coil 0.8mm Z80

Zero Spangle Z80 hot dip galvanized coil

Uses

Building and Structures

Used for roof and wall coverings in industrial plants and warehouses, central air conditioning ventilation ducts, light steel keels for suspended ceiling partitions, and building accessories such as blinds and rainwater pipes.

Electrical Appliance Manufacturing

Refrigerator side panels/back panels, washing machine inner and outer drums/housings, air conditioner outdoor unit housings, microwave oven back panels, lighting housings, and billboards, providing structural support and rust protection.

Automotive Industry

Primarily for non-exterior structural parts, it can be processed into automotive seat frames, crossbeams, chassis guards, door inner panels, trunk inner panels, etc., offering moderate strength and corrosion resistance.

Hardware and Furniture

Commonly used in power cabinets, server cabinets, and other computer cabinets, storage shelving, filing cabinets, office metal furniture, grain silos, trash cans, and livestock equipment.

Roof Sheet Applications in Hot Regions

Factory roof and walls

Car bottom Checker Plate

DX51D+Z Equivalent Material

DX51D+Z is equivalent to SGCC-Z (Japanese standards JIS G3302). Below are the codes according to different standards.

European Standards (EN10327)	Chinese Standards (GBT 2518-2008)	Japanese Standards (JIS G3302)	American Standards (ASTM A653M)
DX51D+Z	DX51D+Z	SGCC	CS Type C
DX52D+Z	DX52D+Z	SGCD1	CS Type A/ CS Type B
DX53D+Z	DX53D+Z	SGCD2	FS Type A/ FS Type B
DX54D+Z	DX54D+Z	SGCD3	DDS Type C
S250GD+Z	S250GD+Z	SGC340	SS255
S280GD+Z	S280GD+Z	SGC400	SS275
S320GD+Z	S320GD+Z
S350GD+Z	S350GD+Z	SGC440	SS340 class 4
S550GD+Z	S550GD+Z	SGC590	SS550 class 2

Production Process

Uncoiling + Pretreatment

Alkaline degreasing and degreasing. Acid washing and rust removal are then performed to reveal the pure steel base.

Fluxing + Hot-Dip Galvanizing

Immersion in flux solution forms a protective film, followed by immersion in zinc bath at approximately 460°C to form the alloy coating.

Air Knife Control

A high-pressure air knife precisely blows across the steel strip surface, scraping away excess zinc bath.

Cooling

The coated steel coil cools and solidifies, forming visible zinc flower crystals.

Passivation Recoiling

Chromate or chromium-free passivation treatment is performed to prevent white rust. Finally, the finished product is oiled and re-coiled.

Standard export packaging

Inner Packaging

GI coil Outer Packaging

Dx51d + Z80 galvanized steel coil Supplier-Wanzhi Steel

In summary, Dx51D+Z80 galvanized steel coil is a key material for project success. Looking for a reliable galvanized coil supplier for your project? Wanzhi Steel offers high-quality Dx51D+Z80 products in a variety of specifications, with fast delivery. Factory direct pricing with huge discounts on bulk orders.

About Wanzhi Steel

The Wanzhi plant boasts two galvanizing lines and two color-coating lines, with an annual production capacity exceeding 570,000 tons. We utilize advanced coating technology and over 150 pattern rollers, and our products are ISO certified. We offer custom designs, profiled steel sheets, and various surface treatments. Our products have been used in projects in 120 countries worldwide.

Contact Us

Contact Wanzhi Steel today for a special price, and let us help you secure your next project!