The classic crystalline spangle pattern has adorned architectural metalwork for generations. Our controlled cooling process produces consistent, attractive spangle sizes ranging from large (8-15mm) to small (3-5mm) crystals. This decorative finish adds visual interest to exposed applications while providing the same corrosion protection as smooth galvanized products.
Product Overview
The classic crystalline spangle pattern has adorned architectural metalwork for generations. Our controlled cooling process produces consistent, attractive spangle sizes ranging from large (8-15mm) to small (3-5mm) crystals. This decorative finish adds visual interest to exposed applications while providing the same corrosion protection as smooth galvanized products.
Product Description
Patterned Galvanized Steel Coil takes premium cold-rolled or hot-dipped galvanized steel coils (GI Steel) as the base. Through precision embossing technology, it forms raised anti-slip patterns (diamond, lentil, dot) on the surface. The coil has a zinc coating weight of 30-120g/m² (aluminum-zinc-silicon coating optional), which can effectively resist corrosion from industrial waste gas, rainwater and weak acids/alkalis. The embossed structure increases the friction coefficient (dry ≥0.6, wet ≥0.4) to prevent slipping, and enhances the rigidity by 30% compared with plain galvanized coils. With a thickness of 0.15-1.2mm, width of 500-1250mm and maximum coil weight of 10MT, it’s easy to slit, cut and bend, and widely used in workshop walkways, truck cargo floors, garage floors and stair treads.
Specifiction
Attractive crystalline spangle pattern adds visual interest
Visible zinc crystal structure creates unique appearance
Same corrosion protection as non-spangle products
Available in various spangle sizes for different aesthetics
Cost-effective decorative finish for exposed applications
Application field
Decorative fencing, gates, and railings
Architectural accents and feature elements
Agricultural equipment and visible structures
HVAC ductwork in exposed ceiling applications
General applications where appearance is important
Why Choose Us
Advanced Production Lines: High-speed continuous hot-dip galvanizing equipment.
Strict Quality Control: 100% surface inspection and mechanical property testing.
Global Certification: ISO, ASTM, EN compliance for international markets.
Customization: Zinc coating, thickness, width, and surface treatments tailored to customer needs.
Export Expertise: Long-term supply to over 80 countries with professional logistics support.
FAQ
Q1: What causes the spangle pattern in galvanized steel?
A: Spangle forms as zinc crystals grow during controlled cooling from the galvanizing bath. Lead and antimony additions promote large spangles; aluminum promotes small spangles. The crystalline pattern is purely aesthetic and doesn't affect corrosion performance.
Q2: Can I choose spangle size?
A: Yes, we offer regular spangle (8-15mm), minimized spangle (3-5mm), and small spangle options. Large spangles provide traditional appearance; small spangles offer more uniform look. Specify preference when ordering.
Q3: Is spangle galvanized suitable for painting?
A: Not recommended for premium painting as spangle can telegraph through paint. Use non-spangle (smooth) galvanized for painted applications. Spangle finish is ideal for exposed, unpainted applications where decorative appearance is desired.
Q4: Does spangle affect corrosion resistance?
A: No, spangle appearance has no effect on corrosion protection. Both spangle and non-spangle products with same coating weight provide identical corrosion resistance. The difference is purely aesthetic.
Q5: What coating weights are available for spangle finish?
A: Available in Z60 through Z275 (180-840g/m² total). Z120-Z180 is most common for decorative applications, providing good corrosion protection with attractive appearance. Heavier coatings may reduce spangle visibility.
DX51D Galvanized steel is a type of steel that has been treated with zinc to enhance its corrosion resistance.
1.Surface structure code / Not just polished
Normal zinc flower N NS Small zinc flower M MS Zinc free flower F FS Zinc ferroalloy ZF ZFS
2.Surface quality code
Ordinary surface FA Advanced surface FC Higher surface FB
3.Surface treatment symbol
Passivation C Unction O Paint sealant L Phosphating P Don't deal with U
Service
Custom Orders: Tailored sizes, thicknesses, and coatings to meet customer needs.
Quality Assurance: Rigorous testing for surface quality and coating thickness to ensure high standards.
Flexible Payment Options: Multiple payment methods like T/T, LC, and PayPal.
Global Delivery: Timely and reliable worldwide delivery for large and small orders.
Packaging: Safe packaging suitable for international shipment.
