Galvanized Steel
Sheet plate galvanised steel DX54D is coated with zinc, which makes it a durable steel sheet. Due to its high formability, this steel can be used primarily in fabrication work. This equipment includes the automotive, structural, and domestic appliances industries. The presence of the zinc layer aids in preventing rust, and these materials can be used internally and externally where there is wetness or humidity.
-
Chemical composition of DX54D steel
| C | Si | Mn | P | S | Ti |
| max 0.12 | max 0.5 | max 0.6 | max 0.1 | max 0.045 | max 0.3 |
-
Mechanical properties of steel DX54D
| Rm - Tensile strength (MPa) | 260-360 |
| Rp0.2 0.2% proof strength (MPa) | 120-220 |
| A - Min. elongation Lo = 80 mm (%) | 34-36 |
-
Application industry
It is used for stamping and manufacturing deep-drawn forming parts, such as front floor, rear floor, wheel well inner panels, left and right side shelves, left and right fender inner panels, and can be used for stamping engines
Hood outer panel, top cover outer panel, left and right fenders, etc.
Comparing DX54D with DX53D and Other Steel Grades
| Parameter | DX54D | DX53D | Other Steel Grades (General) |
|---|---|---|---|
| Formability | Excellent for deep drawing | High, suitable for complex shapes | Varies by grade |
| Tensile Strength (MPa) | 260–360 | 270–370 | Depends on specific grade |
| Yield Strength (MPa) | 120–220 | 140–260 | Varies widely |
| Elongation (%) | ≥ 36 | 30–40 | Varies by application |
| Corrosion Resistance | High due to zinc coating | High with galvanized options | Varies by coating |
| Weldability | Excellent, low carbon content | Excellent, low carbon content | Varies by composition |
| Applications | Automotive, appliances, construction | Automotive, appliances, construction | Industry-specific |
| Surface Coatings | Zinc, zinc-aluminum, zinc-magnesium | Zinc, zinc-aluminum, zinc-magnesium | Varies by grade and need |
| Chemical Composition | Low carbon, Mn, Si, Ti | Low carbon, Mn, Si, Ti | Varies by standard |
| Standards | EN 10346, ASTM A653 | EN 10346, ASTM A653 | EN, ASTM, or other standards |
Production Processes of DX54D Steel
Throughout the entire production process, we strictly control every link to ensure that each batch of products meets the highest quality standards, ensuring the reliability and durability of our DX54D steel, so you can rest assured.
Smelting process: First, we melt and refine the raw materials to ensure that the chemical composition of the molten steel meets the required quality standards.
Hot rolling process: Next, the molten steel is cast into billets and hot rolled at a high temperature of about 1200°C. This step is mainly to reduce the thickness of the steel and improve its properties.
Cold rolling process: After hot rolling, the steel is cold rolled to further reduce the thickness, while improving the surface finish and precision to ensure that the finished product is more accurate in size.
Continuous annealing: To reduce the internal stress generated during the cold rolling process, we will heat the steel to 700-800°C for annealing, which can enhance the ductility of the steel and make it easier to process.
Galvanizing treatment: Finally, to improve the corrosion resistance of the steel, we use a hot dip galvanizing process to immerse the steel in molten zinc at 450-460°C to form a zinc coating to effectively prevent rust.
|
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 |