Galvanized Steel
DX54D is a hot-dip coated deep-drawing steel in the DX series, valued for high formability. Made of low-carbon steel, it's ideal for cold forming. "DX" denotes the series, "54" the formability grade, and "D" the deep-drawing quality. Both DX54D and DX53D are automotive steels, but DX54D has higher formability, making it better for complex shapes. DX54D (equivalent to FeP06G, steel number 1.0952) is used in automotive panels and appliance housings, with corrosion resistance for outdoor or moist conditions.
Chemical Composition of DX54D Steel
| Element | Content (%) |
| Carbon, C | 0.08 max |
| Manganese, Mn | 0.45 max |
| Phosphorus, P | 0.03 max |
| Sulfur, S | 0.03 max |
| Silicon, Si | 0.50 max |
| Aluminum, Al | 0.02-0.07 |
| Nitrogen, N | 0.012 max |
| Titanium, Ti | 0.30 max |
| Chromium, Cr | 0.20 max |
| Nickel, Ni | 0.20 max |
| Copper, Cu | 0.20 max |
Low Carbon (C): Ensures ductility and ease in deep drawing without compromising strength.
Controlled Manganese (Mn): Enhances strength and toughness.
Low Phosphorus (P) and Sulfur (S): Improves weldability and reduces brittleness.
Aluminum (Al): Acts as a deoxidizer, improving surface quality.
Titanium (Ti): Increases stability in forming, reducing cracks and defects during shaping.
Mechanical Properties of DX54D Steel
| Property | Metric | Imperial |
| Tensile Strength | 270 – 370 MPa | 39 – 54 ksi |
| Yield Strength | 120 – 220 MPa | 17 – 32 ksi |
| Brinell Hardness | 90 – 120 HB | 90 – 120 HB |
| Rockwell Hardness | 50 – 65 HRB | 50 – 65 HRB |
| Vickers Hardness | 100 – 130 HV | 100 – 130 HV |
| Elongation | ≥ 36% | ≥ 36% |
| Elastic Modulus | 210 GPa | 30,500 ksi |
| Anisotropy (R-Value, Min) | ≥ 1.6 | ≥ 1.6 |
| Strain Hardening Index (n-Value, Min) | ≥ 0.18 | ≥ 0.18 |
Surface Treatment of DX54D Steel
In order to improve the corrosion resistance, wear resistance and appearance of DX54D steel, we provide a variety of surface treatment methods:
Passivation or Chromate Coating: Applied post-galvanizing to prevent oxidation and enhance corrosion resistance.
Phosphating: Promotes paint adhesion, commonly used in automotive and appliance finishes.
Organic or Epoxy Coatings: Provide added protection for parts exposed to wear or extreme environments.
Different Surface Finishes for DX54D
DX54D+Z (zinc coating): provides good corrosion resistance and is suitable for general outdoor and automotive applications.
DX54D+ZM (zinc-magnesium alloy coating): enhances corrosion resistance and reduces white rust, suitable for automotive and structural parts in humid environments.
DX54D+ZA (zinc-aluminum alloy coating): improves surface hardness and corrosion resistance, suitable for buildings and facades.
DX54D+ZF (zinc-iron alloy coating): enhances paint adhesion and corrosion resistance, often used for automotive parts that need to be painted.
DX54D+AZ (aluminum-zinc alloy coating): provides high corrosion resistance and heat reflectivity, widely used in roofs, HVAC systems and exposed building materials.
DX54D+AS (aluminum-silicon alloy coating): enhances high temperature resistance and prevents oxidation, suitable for exhaust systems and high-temperature components.
Which Surface Treatment Provides The Best Corrosion Resistance For DX54D Steel?
DX54D+AZ (aluminum-zinc alloy coating) is a very ideal choice for applications that require special corrosion resistance, especially for exposed environments such as buildings and roofs.
- Material Comparison
|
Chinese Standard |
Japan Standard |
European Standard |
|
DX51D Z/DC51D Z (CR) |
SGCC |
DX51D Z |
|
DX52D Z/DC52D Z |
SGCD1 |
DX52D With |
|
DX53D Z/DC53D Z/DX54D Z/DC54D Z |
SGCD2/SGCD3 |
DX53D Z/DX54D Z |
|
S220/250/280/320/350/550GD Z |
SGC340/400/440/490/570 |
S220/250/280/320/350GD Z |
|
DX51D Z/DD51D Z (HR) |
SGHC |
DX51D Z |