DX51D+Z galvanized steel sheet is a cold-rolled steel sheet coated with a uniform layer of zinc. Galvanizing is an economical and highly effective corrosion protection method, widely applied in construction, manufacturing, electrical appliances, automotive, and agricultural industries.
Approximately half of the world's zinc production is used in this process. The zinc coating protects the steel surface, extends service life, and ensures durability in harsh environments.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | DX51D+Z Galvanized Steel Sheet |
| Thickness | 0.1 mm – 5.0 mm |
| Width | 12.7 mm – 2000 mm (customizable) |
| Zinc Coating Weight | 30 g/m² – 275 g/m² |
| Surface Finish | Large spangle, small spangle, smooth/no spangle |
| Coating Technique | Hot-dip galvanizing, Electro-galvanizing, Tinning |
| Standards | GB, GOST, ASTM, AISI, JIS, BS, DIN, EN |
| Applications | Construction, household appliances, electrical components, automotive parts, agricultural equipment |
| Delivery Time | 7–15 working days after deposit or L/C confirmation |
| Export Packing | Waterproof paper, steel strip packing; standard seaworthy packaging suitable for all transport methods, or customized per request |
| Payment Terms | T/T, L/C, Western Union, and other secure methods |
Features and Advantages of DX51D+Z
Excellent Corrosion Resistance: Zinc layer provides sacrificial protection and prolongs steel lifespan.
Cost-Effective: Galvanizing is an economical anti-corrosion method compared to painting or stainless steel.
Wide Application: Suitable for structural panels, roofing, HVAC ducts, appliances, automotive parts, and agricultural machinery.
Flexible Specifications: Available in a wide range of thicknesses, widths, and zinc coating weights to meet diverse project requirements.
Durable Surface Finish: Choice of spangle patterns or smooth surfaces allows compatibility with painting, powder coating, or direct use.
Global Standards Compliance: Manufactured to meet international standards including EN 10346, ASTM, JIS, GB/T, and more.
DX51D+Z galvanized steel sheet is ideal for engineers, fabricators, and manufacturers seeking high-quality coated steel with reliable corrosion protection, excellent formability, and versatile surface options.
Q1: What does the designation "DX51D+Z" mean?
A: This is a standard European (EN) designation for a hot-dip galvanized steel grade:
DX: Indicates it is a forming steel primarily for cold forming applications.
51: A numerical designator specifying a base steel with a minimum yield strength typically ≤ 280 MPa and specific mechanical properties suitable for forming.
D: Denotes the ductility level. "D" stands for "Drawing" quality, indicating good to very good ductility for deep drawing applications.
+Z: Specifies the coating: hot-dip galvanized with a zinc coating.
Q2: What are its primary mechanical properties?
A: According to EN 10346, the typical properties are:
Yield Strength (Re): Usually 140 - 300 MPa (Note: No specific minimum is mandated; it's based on the base steel chemistry for formability).
Tensile Strength (Rm): 270 - 500 MPa.
Elongation (A₈₀): Typically ≥ 22% - 26% (minimum depends on thickness). This high elongation is key for its formability.
It is not a high-strength steel. Its value lies in its excellent formability and corrosion protection.
Q3: What is the "Z" coating, and what are typical coating weights?
A: The "Z" stands for a massive zinc coating applied via the continuous hot-dip galvanizing process. The coating weight is specified by a suffix (e.g., Z140, Z275):
Example - DX51D+Z140: Minimum total coating mass of 140 g/m² (approx. 20 µm per side, 40 µm total). Common codes are Z100 (light), Z140 (standard), Z200/Z225 (heavy), and Z275 (extra heavy for severe environments).
Q4: What are the main applications for DX51D+Z?
A: It is the workhorse steel for general fabrication where corrosion resistance and formability are needed, but not high structural strength. Common uses include:
HVAC ductwork and components.
Appliance housings (washing machines, dryers, enclosures).
Light gauge building panels and profiles.
General metal cabinets, enclosures, and light furniture.
Agricultural and industrial containers.