DX51D + Z275
DX51D + Z275 is one of the most widely used galvanized steel specifications in construction, manufacturing, and roofing applications. It combines a formable steel grade with a protective zinc coating, making it ideal for outdoor and industrial use.
1.DX51D → steel grade for cold forming
2.Z275 → zinc coating of 275 g/m²
3.Best for → roofing, cladding, general applications
4.Key benefit → balance of cost and corrosion protection
What Does DX51D Mean?
This grade is specifically designed for cold forming applications, making it suitable for bending, roll forming, and fabrication processes without cracking. DX51D is a steel grade defined under EN standards:
DX → flat steel for cold forming
51 → standard quality
D → suitable for forming processes
This makes it ideal for products that require bending, shaping, or forming. Z275 is the most widely specified coating level for outdoor applications, offering a strong balance between corrosion resistance and cost.
What Does Z275 Mean?
Z275 refers to the zinc coating applied to the steel surface.
- Total coating: 275 g/m² (both sides)
- Provides corrosion resistance
- Extends service life in outdoor conditions
DX51D + Z275 Specification Table
Actual specifications may vary depending on mill production and project requirements, especially for export orders.
| Property | Value |
|---|---|
| Steel Grade | DX51D |
| Coating | Z275 |
| Coating Weight | 275 g/m² |
| Thickness Range | 0.3 – 3.0 mm |
| Width | 600 – 1500 mm |
| Standard | EN 10346 |
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Common galvanized steel grades
|
Standard |
ISO,JIS,AS EN,ASTM |
|
Grade |
Q195 Q235 Q345 |
|
SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570 |
|
|
SGHC SGH340 SGH400 SGH440 SGH490 SGH540 |
|
|
S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD |
|
|
SS230 SS250 SS275 |
Client Case Studies
- 500 GI Coils To Dammam
Product quality testing
(1)During and after production, 4 QC personnel with more than 5 years of experience randomly inspect the products.
(2)National accredited laboratory with CNAS certificate
(3)Accept inspection from a third party designated/paid by the buyer, such as SGS, BV.
Types of zinc spangles
Typical Applications of DX51D + Z275
In export markets, it is commonly used for roofing systems, sandwich panels, and industrial cladding where consistent coating quality is critical.
DX51D + Z275 is used in:
- Roofing sheets
- Wall cladding
- HVAC systems
- Agricultural buildings
- Industrial panels
DX51D material is commonly supplied in galvanized steel coils for various applications.
Why Choose Our Galvanized Steel?
At GNEE Steel, we deliver more than just galvanized steel-we provide reliable solutions tailored to your project requirements. Our products are manufactured in accordance with international standards and are available in a wide range of steel grades, zinc coating weights, and custom dimensions. Strict quality control, stable supply capacity, and professional export packaging ensure that every order arrives in excellent condition. With fast response times, flexible customization, and experienced technical support, we help customers worldwide reduce procurement risks and achieve long-term value.
OEM Custom Processing Services Available.
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FAQ
1. Can galvanized steel be welded?
Yes. Galvanized steel can be welded using appropriate welding techniques. Proper ventilation and removal of zinc coating near the weld area are recommended to achieve better weld quality.
2. Can galvanized steel be painted?
Yes. Galvanized steel can be painted after proper surface preparation, such as cleaning and applying a suitable primer, which improves coating adhesion and extends service life.
3. Is galvanized steel suitable for outdoor applications?
Yes. Hot-dip galvanized steel is widely used outdoors because the zinc coating effectively protects the steel from moisture, rain, and atmospheric corrosion.
4. What industries commonly use galvanized steel?
Galvanized steel is widely used in construction, infrastructure, automotive manufacturing, agriculture, HVAC systems, electrical cabinets, household appliances, solar mounting systems, and industrial equipment.
5. Can galvanized steel be bent or formed?
Yes. Galvanized steel has good formability and can be bent, stamped, roll-formed, and deep drawn, depending on the selected steel grade.
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