Product Overview
Our DX51D galvanized steel coils are high-quality hot-dip galvanized products designed for a wide range of industries. With superior corrosion resistance, excellent formability, and durable zinc coating, these coils are ideal for construction, automotive, home appliances, and fabrication industries.
Key Features
Grade: DX51D, DX52D, DX53D, SGCC, SGCH, Q235, DC01/DC02
Standards: AISI, ASTM, BS, DIN, GB, JIS
Thickness: 0.3–3.5 mm
Width: 600–1830 mm
Length: Customizable per project requirements
Zinc Coating: Z180 – Z350 g/m²
Surface Finish: Big spangle, regular spangle, mini spangle, zero spangle
Technique: Hot rolled / Cold rolled
Surface Treatment: Hot-dip galvanized, Electro-galvanized
Zinc Coating Advantages
Metallurgical Bonding: The zinc coating is metallurgically bonded to the steel, forming part of the steel surface for long-lasting protection.
Durability: The galvanized layer withstands mechanical damage during transportation, handling, and use.
Enhanced Corrosion Resistance: Provides protection in outdoor, humid, or harsh industrial environments.
Products Applications
Construction & Building: Roofing, wall panels, steel structure components, industrial panels, and steel silos.
Automotive Industry: Car body panels, frames, and auto parts requiring corrosion resistance.
Home Appliances: Refrigerators, washing machines, air conditioners, and other durable household products.
Containers & Transportation: Storage containers, shipping cases, and protective panels.
Agriculture & Food Industry: Silos, farm equipment, and storage for perishable products.
Other Industries: Medical devices, chemical industry, fabrication projects, and general manufacturing.
Why Choose Our DX51D Galvanized Steel Coils
High Quality & Consistency: Produced using cold-rolled steel with in-house quality control, ensuring consistent mechanical properties and dimensional accuracy.
Versatile Spangle Options: Big, regular, mini, and zero spangle finishes to meet aesthetic and functional requirements.
Customizable: Width, thickness, length, and zinc coating can be tailored to your project needs.
Reliable Supply: Production capacity of 5000 tons/month with flexible delivery options.
Trusted Supplier: Compliant with international standards, ensuring quality and reliability for export and domestic use.
Ordering & Logistics
Payment Terms: T/T, L/C
Supply Ability: 5000 tons/month
Delivery Time: 2–4 weeks depending on quantity and specifications
Shipping Terms: EXW, FOB, CFR, CIF
Keywords: DX51D Galvanized Steel Coil, Z180 Galvanized Coil, Z350 Hot-Dip GI Sheet, Zinc-Coated Steel Sheet, Construction Steel Coil, Automotive Steel Coil
DX51D Z180/Z350 hot-dip galvanized steel coils offer superior corrosion resistance, formability, and durability, making them ideal for a variety of industrial and commercial applications.
Whether for steel structures, automotive manufacturing, or home appliances, our galvanized coils provide long-lasting protection, excellent performance, and versatile application solutions.
Q1: What is DX51D+Z steel?
DX51D+Z is a continuously hot-dip galvanized cold-rolled low carbon steel grade according to EN 10346. "DX51D" indicates the base steel with standard ductility, and "+Z" denotes a zinc coating on both sides for corrosion protection.
Q2: Which standard governs DX51D+Z steel?
DX51D+Z is produced under EN 10346, which specifies requirements for continuously hot-dip coated flat steel, including chemical composition, mechanical properties, zinc coating mass, surface quality, and dimensional tolerances.
Q3: What are the typical mechanical properties of DX51D+Z?
DX51D+Z usually has a tensile strength of approximately 270–410 MPa, a yield strength of around 140–280 MPa, and a minimum elongation of 23% (A80). These properties allow basic forming, bending, and light stamping.
Q4: How does DX51D+Z differ from DX53D+Z and DX54D+Z?
DX51D+Z has lower strength and elongation than DX53D+Z or DX54D+Z, making it suitable for general purpose applications where extreme forming or deep drawing is not required.
Q5: What does the "+Z" designation mean?
The "+Z" indicates a continuous hot-dip zinc coating applied on both sides of the steel. This sacrificial layer provides corrosion protection, extending the lifespan of the material in mild atmospheric conditions.
Q6: What zinc coating weights are available for DX51D+Z?
Typical zinc coating weights are Z10, Z15, Z20, Z25, and Z30, representing total zinc mass on both sides in g/m². Higher zinc weights offer better corrosion resistance but may slightly reduce formability.
Q7: Is DX51D+Z weldable?
Yes, DX51D+Z can be welded with standard resistance or arc welding methods. However, localized zinc evaporation occurs during welding, so ventilation and proper process control are recommended.
Q8: Can DX51D+Z be formed or bent?
DX51D+Z is suitable for general forming, bending, and light stamping operations. It is less suitable for deep drawing or complex shapes compared to DX53D+Z or DX54D+Z due to its lower elongation.
Q9: What are the surface quality requirements for DX51D+Z?
The surface should be free of major defects such as cracks, heavy zinc runs, blistering, or rust. Minor imperfections that do not affect processing or end-use performance are acceptable per EN 10346.
Q10: What are common applications of DX51D+Z steel?
DX51D+Z is widely used in automotive components with minimal forming requirements, appliance panels, light construction elements, roofing sheets, ducts, and general corrosion-protected flat steel applications.
