galvanized steel
DX53D galvanized steel is a deep drawing quality hot-dip galvanized steel grade specified under EN 10346 standard. It is produced from low-carbon cold rolled steel substrate, then continuously coated with zinc by hot-dip galvanizing process to improve corrosion resistance and service life.
DX53D belongs to the category of structural and deep drawing galvanized steel, offering superior formability, ductility, surface quality and coating adhesion, making it especially suitable for complex forming processes such as deep drawing, bending, stamping and roll forming.
DX53D galvanized steel coil and sheet are widely used in automotive components, household appliances, building materials, ventilation systems, electrical enclosures, steel furniture and light industrial manufacturing.
Key Characteristics of DX53D Galvanized Steel
Excellent deep drawing performance
High elongation and uniform thickness
Smooth surface suitable for painting and coating
Strong corrosion protection from zinc coating
Stable mechanical properties and consistent quality
DX53D Galvanized Steel Chemical Composition
| Element | C | Mn | P | S | Al |
|---|---|---|---|---|---|
| Typical % | ≤0.08 | ≤0.45 | ≤0.030 | ≤0.025 | ≥0.015 |
DX53D Galvanized Steel Mechanical Properties
| Property | Typical Value |
|---|---|
| Yield Strength (MPa) | 140–220 |
| Tensile Strength (MPa) | 270–380 |
| Elongation A80 (%) | ≥36 |
| Hardness (HV) | ≤110 |
| Bending Test | 0T–1T |
These mechanical properties give DX53D galvanized steel outstanding forming capability without cracking, which is crucial for deep drawing applications.
DX51D vs DX53D: What's the Difference?
| Property | DX51D | DX53D |
|---|---|---|
| Steel Type | Commercial Quality | Deep Drawing Quality |
| Elongation | ≥22% | ≥36% |
| Formability | Good | Excellent |
| Typical Use | Roofing, profiles | Auto parts, appliances |
| Surface Quality | Standard | Superior |
| Price Level | Lower | Slightly higher |
Practical Comparison Case
When manufacturing automotive door inner panels, DX51D often experiences wrinkling and edge cracking due to limited elongation, while DX53D galvanized steel performs consistently with clean forming and stable geometry, significantly reducing production scrap rate.
Frequently Asked Questions (FAQ)
Q: What are the main applications of galvanized steel plates?
A: Galvanized steel plates are widely used in construction, automotive manufacturing, agricultural equipment, and home appliances such as washing machines and refrigerators due to their excellent corrosion resistance and durability.
Q: How is hot-dip galvanized steel produced?
A: Hot-dip galvanized steel is produced by immersing steel in a bath of molten zinc, creating a galvanized layer that provides excellent corrosion resistance. This process ensures a strong bond between the zinc coating and the steel substrate.
Q: What are the benefits of using a galvanized steel coil in construction?
A: Galvanized steel coils offer excellent corrosion resistance, durability, and low maintenance, making them ideal for construction applications. They are also versatile and can be easily formed into various shapes.
Q: How does pre-painted galvanized steel differ from regular galvanized steel?
A: Pre-painted galvanized steel is coated with a layer of paint for additional protection and aesthetics. This coated steel sheet type provides excellent corrosion resistance and an attractive finish, making it suitable for visible applications.
Q: What is the significance of the "z275" marking on galvanized steel products?
A: The "z275" marking indicates the weight of the zinc coating, measured in grams per square meter. A Z275 galvanized steel product has a zinc coating weight of 275 g/m², offering significant corrosion protection.
|
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 |