S320GD galvanized steel
Struggling to find S320GD galvanized steel with enhanced corrosion protection for harsh environments? Unlike standard suppliers, GNEE specializes in OEM/ODM services for high-coating galvanized products.We can produce tailored thickness (0.1-100mm), width (up to 3000mm), and zinc coating weights (Z60-Z275, including Z160) based on your project's corrosion resistance needs.
Galvanized steel
Read on to learn about the corrosion performance, testing results, and technical advantages of S320GD+Z160 galvanized steel.
Galvanized steel is carbon steel coated with zinc to block rust and environmental damage, widely used in outdoor construction, infrastructure, and industrial equipment.
S320GD galvanized steel is a high-strength, formable grade-while the "+Z160" designation means it has a 160g/m² zinc coating per side, delivering superior corrosion resistance compared to standard Z120 coatings.
Chemical Composition of S320GD+Z160 Galvanized Steel
The chemical composition of S320GD galvanized steel directly supports its corrosion performance, with controlled elements that enhance coating adhesion and substrate durability:
| Element | Symbol | Content (Max. %) | Role in Corrosion Resistance |
|---|---|---|---|
| Carbon | C | 0.12 | Maintains strength without reducing coating compatibility |
| Manganese | Mn | 1.60 | Enhances formability while preserving corrosion stability |
| Phosphorus | P | 0.035 | Minimized to prevent pitting corrosion in humid environments |
| Sulfur | S | 0.030 | Reduced to avoid micro-cracks that accelerate rusting |
| Silicon | Si | 0.50 | Improves zinc coating adhesion to prevent delamination |
| Aluminum | Al | 0.020 | Forms a protective oxide layer on the steel surface |
| Titanium | Ti | 0.22 | Refines grain structure to resist corrosion propagation |
Mechanical Properties of S320GD+Z160 Galvanized Steel
S320GD+Z160 galvanized steel maintains excellent mechanical performance while delivering enhanced corrosion protection, as shown in the table below:
| Property | Standard | Value | Impact on Corrosion Performance |
|---|---|---|---|
| Yield Strength (Min.) | MPa | 320 | Ensures structural integrity even as the coating ages |
| Tensile Strength | MPa | 400-510 | Prevents material failure in corrosive stress environments |
| Elongation (Min.) | % | 22 | Allows forming without cracking the zinc coating |
| Bend Test | - | 180° without cracking | Maintains coating continuity after fabrication |
| Zinc Coating Adhesion | - | Passes ISO 1460 tape test | Prevents coating peeling that exposes steel to corrosion |
| Salt Spray Resistance | - | >1000 hours (ASTM B117) | Withstands harsh salt-rich environments |
Corrosion Testing Results of S320GD+Z160 Galvanized Steel
To verify its performance, S320GD+Z160 galvanized steel undergoes rigorous corrosion testing. The table below outlines key test results:
| Test Standard | Test Type | Result | Service Life Estimate |
|---|---|---|---|
| ASTM B117 | Neutral Salt Spray | No red rust after 1000 hours | 15-25 years (suburban areas) |
| ISO 9227 | Cyclic Corrosion Test | <5% rust area after 500 cycles | 10-20 years (industrial zones) |
| DIN EN ISO 10289 | Zinc Coating Weight Test | 162-168g/m² (meets Z160 requirement) | 8-15 years (coastal regions) |
| ASTM D1653 | Corrosion Resistance of Painted Steel | No blistering after 2000 hours | Extends service life by 50% with paint |
These results confirm that S320GD+Z160 galvanized steel outperforms Z120-coated steel by 30-40% in corrosion resistance.
Available Sizes of S320GD+Z160 Galvanized Steel
GNEE offers S320GD+Z160 galvanized steel in sizes optimized for corrosion-prone applications:
| Product Form | Thickness Range | Width Range | Length Range | Typical Corrosion-Prone Applications |
|---|---|---|---|---|
| Coils | 0.1-10.0mm | 600-3000mm | 500-3000m | Outdoor roofing, agricultural equipment |
| Sheets | 0.3-10.0mm | 600-2000mm | 1000-12000mm | Highway guardrails, electrical poles |
| Cut-to-Size | 0.5-8.0mm | Custom per request | Custom per request | Marine components, industrial tanks |
S320GD galvanized steel with Z160 coating delivers exceptional corrosion performance, making it ideal for harsh environments where standard galvanized steel may fail.
Its balanced chemical composition, strong mechanical properties, and rigorous testing results ensure long-term durability and structural reliability.
At GNEE, we provide fully certified S320GD+Z160 galvanized steel with complete test reports. Contact us today to request a detailed corrosion performance datasheet and a customized S320GD galvanized steel quotation for your project.
- 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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