S280GD+AZ Hot Aluminum Zinc Galvalume Steel Coil

S280GD+AZ Galvalume Steel Coil is produced by advanced continuous hot-dip coating technology, with the coating composition of 55% aluminum, 43.5% zinc and 1.5% silicon. The special alloy coating forms a dense double-layer protective film on the steel substrate surface, effectively isolating oxygen, moisture and corrosive media.

Different from ordinary galvalume steel, S280GD+AZ aluzinc steel coil adopts structural grade substrate design, with higher yield strength and better load-bearing capacity. It perfectly balances stamping, bending and deep drawing processability, no coating peeling or cracking during secondary processing. With bright silver uniform spangle surface, it can be directly used or used as the base material for color coated steel, which greatly expands application scenarios and reduces overall project material costs.

Construction industry: Roofing coil, wall panel, purlin, enclosed enclosure, steel structure workshop

New energy field: Solar mounting bracket, photovoltaic peripheral structural parts

Industrial equipment: Mechanical shell, ventilation duct, warehouse storage equipment

Home appliance industry: Refrigerator backboard, air conditioner shell, metal structural parts

Light industry & agriculture: Farm breeding housing, greenhouse frame, logistics container board

What is S280GD+AZ meaning?

S stands for structural steel, 280 refers to minimum 280MPa yield strength, GD means hot-dip coated steel, AZ represents 55% aluminum-zinc silicon galvalume coating.

What is the difference between S280GD+AZ and S250GD+AZ galvalume coil?

S280GD+AZ has higher yield strength and better structural bearing capacity, more suitable for load-bearing structural parts; S250GD+AZ is more inclined to common decoration and ordinary building materials.

What AZ coating weights can you supply?

We provide AZ60, AZ80, AZ100, AZ120, AZ150, AZ180 conventional specifications, and support customized special coating weight.

Is S280GD+AZ galvalume coil easy to rust?

Under normal indoor and outdoor environment, it can be used stably for more than 25 years; with extra passivation and oiling treatment, the anti-rust effect will be further improved.

Can I get free samples for quality check?

Yes, GNEE STEEL can provide free small-size S280GD+AZ galvalume steel coil samples, customers only need to bear the freight.

Can this aluzinc coil be used for color coating production?

Absolutely. Smooth surface and stable coating adhesion make S280GD+AZ an ideal base material for PPGL color coated steel coil.

What are your packaging methods?

Standard seaworthy export packaging, waterproof paper + plastic film + iron protective plate, suitable for long-distance sea and land transportation.

How about your production and delivery cycle?

Conventional size S280GD+AZ galvalume steel coil has spot inventory within 7 days; customized specifications delivery time is 15–25 working days.

S280GD+AZ Galvalume Steel Coil is the preferred high-strength anti-corrosion aluzinc raw material for your engineering construction and industrial production. GNEE STEEL always insists on providing high-quality galvalume steel coil with complete specifications and stable quality.

If you need the latest ex-factory price, complete technical data sheet, customized size solution or bulk order quotation, please send your requirements and specifications to us immediately. Our professional international sales team will reply within 24 hours and provide you with the most competitive wholesale price and one-stop steel procurement solution.

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