galvanized steel plate
Unsure whether DX51D+Z160 is the right coating grade for your project? Let's compare. As a direct factory with 20 years of experience, GNEE Steel provides clear insights on DX51D+Z160 galvanized steel plate and how it compares to other DX51D coating grades. In this guide, we'll break down the key differences to help you make the right choice.

Galvanized steel plate
DX51D galvanized steel is available in multiple coating grades (Z100, Z160, Z200) based on zinc weight. Each grade offers different levels of corrosion resistance and cost.
Choosing the right coating grade ensures you get sufficient protection without overpaying for unnecessary zinc coating.
DX51D+Z160 sits in the middle range, offering a balance of protection and affordability for most general-purpose applications.
Comparison: DX51D+Z160 vs. Z100 vs. Z200
The table below compares key features of different DX51D coating grades:
| Feature | DX51D+Z100 | DX51D+Z160 | DX51D+Z200 |
|---|---|---|---|
| Zinc Coating Weight | 100g/m² | 160g/m² | 200g/m² |
| Estimated Indoor Lifespan | 8-12 years | 12-18 years | 18-25 years |
| Estimated Mild Outdoor Lifespan | 5-8 years | 8-12 years | 12-18 years |
| Best For | Dry indoor use (e.g., shelving) | General indoor/outdoor (e.g., appliances, covered structures) | Humid outdoor (e.g., outdoor furniture, covered walkways) |
| Relative Cost | 100% (base) | 115-120% | 130-140% |
| Formability | Excellent | Excellent | Excellent |
DX51D+Z160 offers the best value for applications that require moderate corrosion resistance.
When to Choose DX51D+Z160
Select DX51D+Z160 for these specific scenarios:
Home appliance manufacturing (refrigerators, washing machines) where moisture resistance is needed.
Covered outdoor structures (carports, awnings) with limited direct exposure to rain.
General-purpose metal fabrication requiring both formability and basic corrosion protection.
Products that will be used in moderate humidity environments (e.g., garages, basements).
High-volume production where cost-effectiveness is critical but basic protection can't be compromised.
It's also a good choice for products that may be exposed to occasional moisture but not constant rain.
Consistent Core Properties Across DX51D Steel Grades
While coating weights differ, all DX51D grades share the same core mechanical properties:
| Mechanical Property | DX51D+Z100 | DX51D+Z160 | DX51D+Z200 |
|---|---|---|---|
| Yield Strength | ≥140 MPa | ≥140 MPa | ≥140 MPa |
| Tensile Strength | 270-500 MPa | 270-500 MPa | 270-500 MPa |
| Elongation | ≥28% | ≥28% | ≥28% |
| Formability | Deep drawing grade | Deep drawing grade | Deep drawing grade |
This means formability and strength remain consistent, regardless of coating weight.
DX51D+Z160 galvanized steel plate is the best all-around choice for most general-purpose applications, offering a perfect balance of corrosion resistance, formability, and cost. GNEE Steel can help you confirm if it's the right grade for your specific needs.
To get a personalized recommendation or request a quote for DX51D+Z160, please contact our sales team now. We'll provide expert guidance to ensure you select the optimal coating grade.
- 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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Galvanized steel plate

