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Chuma cha Mabati cha S550GD

Engineered to meet the rigorous European EN 10346 standard, S550GD galvanized steel delivers exceptional structural integrity and high yield strength.

 

At BOMIS, we manufacture and supply this premium coated steel with highly customizable dimensions to fit your specific engineering requirements—offering precision thicknesses ranging from 0.13mm up to 6.0mm, and widths up to 1500mm.

Maelezo

S550GD is a high-strength hot-dip galvanized S350GD+Z structural steel (material number 1.0531) as defined in EU standard EN 10346.
Description of each digit in the designation:
S: Structural steel, used for load-bearing components.
550: Minimum yield strength 550 MPa (Rp0.2≥550).
G: Hot-dip galvanized.
D: Dual-phase / Hot-dip galvanizing code, indicating the hot-dip galvanizing process.
Complete designation (common):
S550GD+Z: Hot-dip galvanized (pure zinc coating).
S550GD+AZ: Aluminized zinc (55% Al + 43.4% Zn + 1.6% Si).
S550GD+ZM: Zinc-aluminum-magnesium galvanized, with enhanced corrosion resistance.

Vipimo

Kategoria  Kigezo  Vipimo vya BOMIS 

Vipimo vya pande Bamba la Aluminiamu la 1mm

 

Unene 0.13 mm – 6.0 mm (Precision tolerance controlled)
Upana Up to 1500 mm
Urefu Coil, or custom cut-to-length
Fomu Zinazopatikana Steel Coil, Flat Sheet, Corrugated Roofing Sheet, Slit Strip

Mipako na Uso

 

Kiwango cha Utengenezaji EN 10346
Misa ya Mipako ya Zinki Z30 – Z275 (30 g/m² to 275 g/m²)
Spangle ya Uso Large Spangle, Regular Spangle, Small Spangle, Zero Spangle
Matibabu ya Uso Chromated / Passivation, Anti-Fingerprint (AFP), Oiled, Dry

Sifa za Mitambo

 

Nguvu ya Mavuno ≥ 550 MPa
Nguvu ya Kunyumbulika 560 – 750 MPa

Mill & Logistics Capabilities

 

Coil ID (Inner Diameter) 508 mm / 610 mm
Uzito wa Koili 2 – 5 MT (Metric Tons)
Usindikaji wa Thamani Iliyoongezwa Slitting, Shearing, Punching, Profiling, Embossing
Idadi Ndogo Zaidi ya Oda 18 MT (One 20ft Container)
Muda wa Kuongoza 7 – 35 Days (Subject to mill production schedule)
Ufungashaji Unaofaa Baharini Mill standard export packing (Waterproof kraft paper, plastic film, galvanized steel envelope, securely strapped)

Benefits of Using S550GD Galvanized Steel

Maximizing Structural Performance and Longevity

When engineering demanding structural projects, utilizing BOMIS S550GD high-strength steel offers an immediate competitive advantage. The superior yield strength allows for significant material down-gauging—reducing overall structural weight and optimizing your freight costs without compromising stress resistance.

To ensure your projects endure the test of time, we manufacture this high-strength substrate with highly customizable coating options. Beyond traditional zinc, BOMIS supplies premium Aluminum-Zinc (AZ) and advanced Zinc-Aluminum-Magnesium (ZAM) finishes, specifically formulated to resist corrosion in severe exposure environments.
While engineering-grade steel represents a premium upfront investment, its proven ability to last 3 to 5 times longer than conventional mild steel drastically minimizes future maintenance, delivering an unmatched Total Cost of Ownership (TCO) for your clients.

Chuma cha Mabati cha S550GD
The S550GD Galvanized Steel is currently in production.
 Chuma cha Mabati cha S550GD
Chuma cha Mabati cha S550GD

Applications of S550GD Galvanized Steel

Renewable Energy & Critical Infrastructure
Engineered to withstand severe wind and snow loads, our S550GD steel is the preferred substrate for utility-scale solar photovoltaic (PV) mounting systems (including high-stress purlins and main beams). Its superior rigidity also makes it ideal for 5G telecommunication towers and high-voltage transmission structures, ensuring decades of stability in outdoor environments.

Automotive & Commercial Transportation
Capitalizing on the exceptional strength-to-weight ratio, automotive manufacturers utilize our high-strength coils to achieve vehicle lightweighting without sacrificing safety. It is widely specified for commercial truck and trailer chassis, heavy-duty body frames, EV (Electric Vehicle) battery pack enclosures, automotive seat frames, and impact-resistant bumper beams.

Heavy-Duty Industrial & Logistics Storage
Designed for maximum load-bearing performance and fatigue resistance, this grade is highly suited for industrial mega-warehousing and heavy-duty pallet racking systems. Furthermore, it provides the rugged durability required for manufacturing construction machinery, agricultural equipment, large-scale HVAC ventilation ductwork, and structural enclosures for electrical control cabinets.

Vyeti Vyetu

imepanuliwa kwa kiwango cha uidhinishaji

Frequently Asked Questions about S550GD Galvanized Steel

Q1: What is the primary advantage of choosing S550GD over standard DX51D for my project?

A: The core advantage is material down-gauging. Standard DX51D is for bending and profiling, with a yield strength of around 140 MPa. S550GD is structural-grade steel with a guaranteed yield strength of ≥550 MPa. This allows engineers to use significantly thinner steel sheets to achieve the exact same load-bearing capacity, reducing the total structural weight and saving considerably on raw material and ocean freight costs.

Q2: Can your S550GD coils withstand high-humidity or coastal environments?

A: Yes. For severe environments (such as Southeast Asian monsoon climates or coastal infrastructure), we highly recommend specifying a heavier zinc coating (up to Z275 g/m²). Additionally, BOMIS provides advanced Aluminum-Zinc (AZ) and Zinc-Aluminum-Magnesium (ZAM) coating options on the S550GD substrate, which offer 3 to 5 times the corrosion resistance of standard hot-dipped galvanized steel.

Q3: Does your S550GD comply with international structural standards?

A: Absolutely. Our S550GD is manufactured strictly in accordance with the European Union EN 10346 standard, which is widely recognized and accepted in global markets, including South America and the Middle East, for solar mounting, roofing, and structural frameworks. A comprehensive Mill Test Certificate (MTC) is provided with every shipment.

Q4: What is the MOQ and typical lead time for custom S550GD orders?

A: As a direct manufacturer, our Minimum Order Quantity (MOQ) is typically 18 Metric Tons (equivalent to one 20ft container). Our standard production lead time ranges from 7 to 35 days, depending on your specific thickness, width requirements, and the current mill production schedule.