EN 10346 DX51D+Z100:

The Versatile Standard for Precision Roofing & FabricationOur EN 10346 DX51D+Z100 Galvanized Steel Coils are engineered to provide the perfect synergy of structural flexibility and long-term atmospheric protection.
As a prime quality material compliant with the rigorous European standards (EN 10346), this grade is the global benchmark for high-performance roofing sheets, wall cladding, and complex cold-formed components. With a guaranteed $100g/m^2$ zinc coating
Bomis Steel delivers a product that ensures durability in diverse climatic conditions while maintaining exceptional cost-efficiency.

Superior Surface Quality & Spangle Control

To ensure optimal performance for subsequent processes like painting or prepainting (PPGI), our DX51D coils feature high-precision surface finishes:

• Spangle Options: Available in Regular Spangle for traditional aesthetics or Minimized/Zero Spangle for a sleek, modern finish that enhances paint adhesion.

• Surface Passivation: Treated with chemical chromating (C) or environmentally friendly chrome-free passivation to prevent “white rust” during maritime transit and storage.

• Tension Leveling: Our coils undergo advanced leveling to ensure superior flatness, eliminating “oil canning” or waves when used for wide-span roofing panels.

Key Mechanical & Performance Metrics

• Excellent Formability: Capable of withstanding a 0T to 1T bend test, ensuring the zinc coating remains metallurgically bonded even under extreme deformation.

• Consistent Yield Strength: Provides the predictable mechanical performance required for automated structural fabrication lines.

• Weldability: The low-carbon chemistry of DX51D ensures excellent weldability for HVAC ducts and structural brackets.

Technical Specifications (EN 10346 Compliance)

Feature	EN 10346 Requirement	Bomis Steel Performance
Grade	DX51D	Prime Quality Commercial Grade
Zinc Mass	$100g/m^2$ (Z100)	Accurate $\pm 5g$ Control
Bending Property	Good for profiling	0T – 1T Bend Pass
Surface Finish	Regular / Minimized / Zero	Customized per request
Passivation	Chromated / Oiled / Dry	Anti-white rust guaranteed
Tolerance	Per EN 10143	High-precision micrometric

DX51D Z100 Galvanized Steel Coil Classification

The material is available in several designations as follows:
Commercial Steel (CS Types A, B, and C),
Forming Steel (FS Types A and B),
Deep drawing steel (DDS),
Extra deep drawing steel (EDDS),
Structural steel (SS),
High strength low alloy steel (HSLAS Type A), and
High strength low alloy steel (HSLAS Type B).

Certification

Factory services

 

DX51D Z100 Galvanized Steel Coil Application Scenarios

Thanks to its comprehensive performance advantages, DX51D Z100 has become the preferred material in home appliances, construction, automotive, and other fields.

Architectural decoration: Used in the production of light steel frames, curtain wall decorative panels, and anti-theft window frames. The Z100 zinc layer resists corrosion in humid outdoor environments, making it particularly suitable for construction projects in coastal areas.

Automotive industry: Used in the production of automotive door inner panels, wheel covers, chassis brackets, and other components. Its excellent formability reduces processing steps, and the zinc layer adhesion meets the requirements of automotive vibration environments.

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Frequently Asked Questions

1.What does “Z100” mean in DX51D steel?

“Z100” refers to the total zinc coating weight of 100 grams per square meter (both sides). It provides a cost-effective protective layer suitable for indoor environments and light industrial use.

2.Is DX51D Z100 suitable for deep drawing?

DX51D is a “bending and profiling” grade. For deep drawing applications, we recommend DX52D or DX53D grades, though Z100 coating can be applied to those as well.

3.Are you a manufacturer or a trading company?

We are a factory with over 10 years of sales experience

4.How do you guarantee the quality?

1) Sourcing only from top-tier, certified mills.

2) Conducting our own rigorous in-house QC checks.

3) Providing a formal Mill Test Certificate and our quality warranty for every shipment.