S320GD galvanized steel
Struggling to find customized S320GD galvanized steel with special sizes or coatings? Unlike standard suppliers, GNEE specializes in OEM/ODM services.
We can produce tailored thickness (0.1-100mm), width (up to 3000mm), and coatings (+ZF zinc-iron/+AZ aluminum-zinc) based on your drawings.
Read on for our customization case studies, strict QC process, and technical specifications of S320GD galvanized steel.
Galvanized steel is a carbon steel product coated with a thin layer of zinc to prevent corrosion. This coating acts as a barrier that protects the underlying steel from environmental damage.
Common applications include construction, automotive manufacturing, electrical appliances, and infrastructure projects. S320GD galvanized steel is a specific grade of hot-dip galvanized steel with excellent formability and strength, making it ideal for demanding applications.

S320GD galvanized steel
Chemical Composition of S320GD Galvanized Steel
The chemical composition of S320GD galvanized steel directly affects its mechanical properties and performance. The following table outlines the typical chemical composition limits:
| Element | Symbol | Content (Max. %) |
|---|---|---|
| Carbon | C | 0.12 |
| Manganese | Mn | 1.60 |
| Phosphorus | P | 0.035 |
| Sulfur | S | 0.030 |
| Silicon | Si | 0.50 |
| Aluminum | Al | 0.020 |
| Titanium | Ti | 0.22 |
| Niobium | Nb | 0.09 |
This composition ensures S320GD galvanized steel maintains a balance between strength, ductility, and corrosion resistance. The controlled levels of alloying elements prevent brittleness while enhancing formability.
Mechanical Properties of S320GD+Z120 Galvanized Steel
S320GD+Z120 galvanized steel is renowned for its excellent mechanical performance. The "+Z120" designation indicates a zinc coating weight of at least 120g/m² per side.
| Property | Standard | Value |
|---|---|---|
| Yield Strength (Min.) | MPa | 320 |
| Tensile Strength | MPa | 400-510 |
| Elongation (Min.) | % | 22 |
| Bend Test | - | 180° without cracking |
| Zinc Coating Weight | g/m² | ≥120 per side |
These properties make S320GD galvanized steel suitable for applications requiring both strength and formability, such as automotive body parts, roofing sheets, and structural components.
Available Sizes and Dimensions of S320GD Galvanized Steel
GNEE offers S320GD galvanized steel in a wide range of sizes to meet diverse customer requirements. Our standard product range includes:
Thickness: 0.1mm - 10.0mm
Width: 600mm - 3000mm (custom widths available)
Length: 1000mm - 12000mm (or as per customer request)
Coil ID: 508mm or 610mm
Coil Weight: 1-30 tons per coil
For special applications, we provide custom cutting services to precise dimensions. Our advanced slitting and shearing equipment ensures accurate sizing with minimal material waste.
Key Applications of S320GD Galvanized Steel
The versatility of S320GD galvanized steel makes it suitable for various industries:
- Automotive Industry: Used for body panels, chassis components, and structural parts due to its high strength-to-weight ratio.
- Construction Sector: Ideal for roofing sheets, wall cladding, and structural framing in commercial and residential buildings.
- Electrical Appliances: Applied in washing machines, refrigerators, and air conditioners for its corrosion resistance.
- Infrastructure Projects: Used in highway guardrails, transmission towers, and utility poles.
- Agricultural Equipment: Suitable for farm machinery and storage structures exposed to harsh environments.
GNEE's S320GD galvanized steel meets international standards and undergoes rigorous quality control to ensure consistent performance in these critical applications.
Quality Control Process for S320GD Galvanized Steel at GNEE
At GNEE, we implement a strict quality control process to ensure every batch of S320GD galvanized steel meets our high standards:
- Raw Material Inspection: All incoming steel coils are tested for chemical composition and mechanical properties.
- Galvanizing Process Monitoring: Continuous monitoring of zinc bath temperature, coating thickness, and adhesion.
- Surface Quality Check: Visual inspection for coating uniformity, absence of defects, and proper finish.
- Mechanical Testing: Tensile, bend, and impact tests conducted on finished products.
- Corrosion Resistance Testing: Salt spray tests to verify the effectiveness of the zinc coating.
- Third-Party Certification: SGS/BV/Lloyd's inspection available upon customer request.
This comprehensive QC process ensures that our S320GD galvanized steel delivers reliable performance and long service life.
S320GD galvanized steel is a high-performance material offering excellent corrosion resistance, strength, and formability for various industrial applications.
At GNEE, we provide customized solutions, strict quality control, and timely delivery to meet your specific project requirements.
Whether you need standard sizes or special configurations, our expertise in galvanized steel production ensures you get the right product for your application.
Get extra 3% off + free sea freight quote!
- Available Steel Grade
|
Available Steel Grade(Ensure weight and support third-party testing) |
||||
|
Steel grade |
Coating |
Yield(MPA) |
Tensile(MPA) |
Elongation(%) |
|
DX51D |
Z,ZF |
-- |
270-500 |
20 |
|
DX52D |
Z,ZF |
140-300 |
270-420 |
22 |
|
DX53D |
Z,ZF |
140-260 |
270-380 |
26 |
|
DX54D |
Z,ZF |
140-220 |
270-350 |
30 |
|
S220GD |
Z,ZF |
220 |
300 |
18 |
|
S250GD |
Z,ZF |
250 |
330 |
17 |
|
S280GD |
Z,ZF |
280 |
360 |
16 |
|
S320GD |
Z,ZF |
320 |
390 |
15 |
|
S350GD |
Z,ZF |
350 |
420 |
14 |
|
S400GD |
Z,ZF |
400 |
470 |
-- |
|
S450GD |
Z,ZF |
450 |
530 |
-- |
|
S500GD |
Z,ZF |
500 |
560 |
-- |
|
Select type Galvanized Steel based on requirements |
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