S320GD galvanized steel
Struggling to choose between S320GD galvanized steel and other structural steel grades for your project? Unlike standard suppliers, GNEE specializes in helping customers select the right material with OEM/ODM customization.
We offer tailored S320GD galvanized steel in thicknesses (0.1-100mm), widths (up to 3000mm), and coatings (+ZF zinc-iron/+AZ aluminum-zinc) to match specific application needs.
Read on to compare S320GD+Z120 galvanized steel with other common structural grades, and learn which best fits your requirements.
Galvanized steel is carbon steel with a zinc coating that prevents corrosion, used in construction, automotive, and infrastructure.
S320GD galvanized steel is a high-strength, formable structural grade-ideal for load-bearing components that need both durability and corrosion resistance.
Galvanized steel sheet
Mechanical Properties Comparison: S320GD vs. Other Structural Steels
The mechanical performance of S320GD galvanized steel sets it apart from other structural grades. The table below compares key properties:
| Property | S320GD+Z120 Galvanized Steel | S235JR Carbon Steel | S355J2 High-Strength Steel | DX51D Galvanized Steel |
|---|---|---|---|---|
| Yield Strength (Min.) | 320 MPa | 235 MPa | 355 MPa | 170 MPa |
| Tensile Strength | 400-510 MPa | 360-510 MPa | 470-630 MPa | 270-500 MPa |
| Elongation (Min.) | 22% | 26% | 21% | 28% |
| Zinc Coating | Z120 (120g/m²) | None | None | Z60-Z275 |
| Formability | Excellent | Good | Moderate | Very Good |
S320GD galvanized steel balances strength (higher than S235JR/DX51D) and formability (better than S355J2), with added corrosion protection.
Chemical Composition Comparison of Structural Steel Grades
Chemical composition affects material performance. Below is a comparison of key elements in S320GD galvanized steel and alternatives:
| Element | S320GD (Max. %) | S235JR (Max. %) | S355J2 (Max. %) | DX51D (Max. %) |
|---|---|---|---|---|
| Carbon (C) | 0.12 | 0.17 | 0.20 | 0.12 |
| Manganese (Mn) | 1.60 | 1.40 | 1.60 | 1.40 |
| Phosphorus (P) | 0.035 | 0.045 | 0.035 | 0.045 |
| Sulfur (S) | 0.030 | 0.045 | 0.030 | 0.045 |
| Silicon (Si) | 0.50 | 0.30 | 0.55 | 0.50 |
S320GD galvanized steel has controlled carbon and impurity levels, ensuring weldability and preventing brittleness-critical for structural applications.
Application Suitability: S320GD vs. Other Steel Grades
Different projects require different material strengths and properties. This table shows which grade fits specific uses:
| Application | S320GD Galvanized Steel | S235JR | S355J2 | DX51D |
|---|---|---|---|---|
| Roofing/Cladding | Excellent (strength+corrosion) | Poor (no corrosion) | Overkill (too strong) | Good (basic corrosion) |
| Automotive Components | Ideal (formable+strong) | Limited (low strength) | Too rigid | Weak (low strength) |
| Structural Framing | Very Good | Good (indoor only) | Excellent (heavy loads) | Poor (low strength) |
| Electrical Enclosures | Excellent (corrosion+form) | Poor | Overkill | Good (basic use) |
| Agricultural Machinery | Ideal (outdoor+strong) | Poor (rusts) | Good (needs coating) | Weak (thin gauge) |
S320GD galvanized steel excels in outdoor/medium-load applications where both strength and corrosion resistance are needed.
Size Range Comparison for Structural Steel Products
GNEE offers S320GD galvanized steel in sizes comparable to other structural grades:
| Steel Grade | Thickness Range | Width Range | Typical Forms |
|---|---|---|---|
| S320GD+Z120 | 0.1-10.0mm | 600-3000mm | Coils, sheets, cut-to-size |
| S235JR | 1.5-200mm | 1000-3000mm | Plates, beams, bars |
| S355J2 | 3.0-200mm | 1000-3000mm | Plates, structural sections |
| DX51D | 0.2-4.0mm | 600-2000mm | Coils, thin sheets |
S320GD galvanized steel covers a wider thickness range than DX51D, suitable for both thin-gauge and medium-gauge applications.
S320GD galvanized steel stands out among structural grades for its balanced strength, formability, and corrosion resistance-outperforming S235JR/DX51D in strength and S355J2 in formability.It's the ideal choice for projects needing durable, versatile material that works in outdoor and demanding environments.
At GNEE, we provide customized S320GD galvanized steel solutions. Contact us today to request a detailed material comparison report and a tailored S320GD galvanized steel quotation for your project.
- Available Steel Grade
|
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 |
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