galvanized steel
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.
DX53D Steel Surface Treatment
At GNEE STEEL,we offer a variety of surface treatments for DX53D steel, ensuring superior corrosion resistance, durability and functionality in a variety of applications. Our treatments are tailored to suit different environments and needs, giving you complete confidence in the quality and performance of our products.
Galvanizing
The galvanizing process for DX53D steel begins with cleaning to ensure the zinc coating adheres securely, followed by a 450°C hot-dip galvanizing process to create a corrosion-resistant zinc layer, ideal for wet or outdoor environments. We offer several galvanizing options to meet different durable needs:
+Z (Zinc Coating): Standard zinc coating for basic corrosion protection.
+ZF (Zinc-Iron Alloy Coating): Improves paint adhesion and weldability, ideal for parts that require painting or welding.
+ZA (Zinc-Aluminum Alloy Coating): A mixture of zinc and aluminum, suitable for coastal or industrial areas, providing better corrosion protection.
+ZM (Zinc-Magnesium Alloy Coating): A combination of zinc, magnesium and aluminum for enhanced wear and corrosion resistance, ideal for parts that are subject to frequent use.
Post-Treatment Options
To further enhance the durability and functionality of DX53D, we offer a variety of post-treatment options, such as painting and powder coating, to provide additional wear protection and customized surface effects. For example, a non-slip coating or textured surface can provide better grip, which is ideal for applications that require special surface treatment.
For corrosive or abrasive environments, our sealing treatment can enhance the moisture and chemical resistance of steel, protect the galvanized and coated surfaces, and ensure long-term use in harsh environments such as marine, agricultural or industrial.
Surface Quality Grade
Depending on different application requirements, DX53D provides a variety of surface quality grades:
- Surface quality grade A: high-quality surface treatment, suitable for applications with high appearance requirements, such as automotive body panels and appliance housings.
- Surface quality grade B: standard surface treatment, balancing appearance and durability, suitable for functional parts, which do not require perfect appearance but require good durability.
Technical Specifications Table
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% |
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 |
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 |
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. |
|
Standard |
Grade |
C |
Si |
Mn |
P |
S |
Ti |
|
Forcold Forming Chinese Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Forcold Forming Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
For Structure Japanese Standard |
SGC340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SGC400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
SGC490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
SGC510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
For Structure AISI Standard |
S220GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
