DX53D Steel Grades
High-Performance Galvanized Steel for Superior Formability and Corrosion Resistance
- Technical Support
DX53D Steel Technical Specifications & Applications
DX53D deep-drawing galvanized steel, produced to EN 10346 standards, offers excellent ductility and formability for complex cold-forming and deep-drawing applications. With a yield strength of 140–260 MPa, tensile strength of 270–380 MPa, and elongation of at least 30%, it ensures high precision forming with minimal risk of cracking. Common uses include automotive body panels, appliance housings, and construction or HVAC components. Available with corrosion-resistant coatings such as Z, ZA, ZF, ZM, AZ, and AS, DX53D provides reliable mechanical performance and durability across demanding environments.
Table of Contents
1. Typical Uses & Selection Guidance
- Structural Applications
DX53D is a premium hot-dip galvanized steel grade manufactured to EN 10346 standards, designed for deep-drawing and complex cold-forming applications. With superior ductility, uniform mechanical properties, and excellent corrosion resistance, it is widely used in automotive parts, household appliances, construction profiles, and precision-engineered components.
- Corrosion Protection
Its durable zinc-based coating (available as Z, ZF, ZA, ZM, AZ, and AS) ensures long-term protection against rust and oxidation, even in aggressive industrial or outdoor environments. This protective layer significantly extends service life while maintaining a high-quality surface finish suitable for painting or further processing.
- Forming Advantages
DX53D offers outstanding formability, with elongation ≥30% and minimal springback, making it ideal for manufacturing complex shapes with high dimensional accuracy. Strict production control guarantees consistent quality, compliance with international specifications, and reliable performance in demanding structural and engineering applications.
2. Technical Specifications Table
1. Chemical Composition Requirements (Maximum %)
| Steel Grade | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Titanium (Ti) |
|---|---|---|---|---|---|---|
| DX53D | ≤ 0.12% | ≤ 0.50% | ≤ 0.60% | ≤ 0.10% | ≤ 0.045% | ≤ 0.30% |
2. Mechanical Property Requirements (Maximum Values)
| Steel Grade | Min. Yield Strength (MPa) | Min. Tensile Strength (MPa) | Min. Elongation (%) Lo=80 mm | Bend Angle (°) | Mandrel Diameter (× Thickness t) |
|---|---|---|---|---|---|
| DX53D | 140–260 | 270–380 | ≥ 30% | 180° | 6t |
3. Coating Adhesion (180° Bend Test) Requirements
| Coating Class | Mandrel Diameter (× Thickness t) |
|---|---|
| Z100, Z200 | 1t |
| Z275, Z350, Z450, AZ150, AZ200, AM100, AM125, AM150, AM175, AM200, AM225 | 2t |
| Z600 | 3t |
4. Applicable Hot-Dip Metallic Coating Types
| Coating Class | Composition (%) | Key Features |
|---|---|---|
| Z (Zinc) | ≥99% Zinc | Basic corrosion protection; suitable for general use. |
| ZA (Zinc-Aluminium) | 95% Zn, 5% Al | Improved corrosion resistance over pure zinc. |
| ZF (Zinc-Iron) | Zinc with iron alloy | Enhanced hardness and wear resistance. |
| ZM (Zinc-Magnesium) | Zn with 2–4% Mg, 5–13% Al | Superior corrosion resistance in harsh environments. |
| AZ (Aluminium-Zinc) | 55% Al, 43.5% Zn, 1.5% Si | Excellent corrosion resistance and heat reflectivity. |
| AM (Aluminium-Magnesium) | Al with Mg alloy | High corrosion resistance; suitable for high-temperature applications. |
3. DX53D vs DX54D — What’s the Difference?
| Property | DX53D Steel Grade | DX54D Steel Grade |
|---|---|---|
| Yield Strength | 140–260 MPa | 120–220 MPa |
| Tensile Strength | 270–380 MPa | 260–350 MPa |
| Elongation (80 mm) | ≥ 30% | ≥ 36% |
| Bendability | 180° with 6t mandrel | 180° with 6t mandrel |
DX53D Steel FAQ：
DX53D is a low-carbon, cold-rolled steel grade designed for deep drawing applications. It is coated with a layer of zinc through the hot-dip galvanizing process, enhancing its corrosion resistance. This steel grade is commonly used in industries requiring high formability, such as automotive manufacturing, construction, and appliance production.
DX53D offers a balanced combination of strength and ductility suitable for deep drawing and complex forming:
Yield Strength: 140–260 MPa
Tensile Strength: 270–380 MPa
Elongation (80mm): ≥30%
Bendability: 180° with 6t mandrel
These properties allow DX53D to be formed into complex profiles without cracking, maintaining structural integrity for demanding applications.
DX53D is widely used where high formability and corrosion protection are required:
Automotive: Body panels, chassis, and structural components.
Construction: Roofing, wall cladding, and structural frames.
Appliances: Washing machines, refrigerators, and air conditioner panels.
Furniture & Equipment: Metal frames, decorative panels, and general fabrication.
Its versatility makes it a preferred choice for industries requiring durable, easily formed galvanized steel.
Compared to DX51D and DX52D:
Higher elongation and ductility for deep drawing and complex forming.
Enhanced formability for precision parts with tight radii or detailed shapes.
Improved corrosion protection due to consistent zinc coating.
DX53D is specifically optimized for applications demanding both excellent formability and long-term corrosion resistance.
