55% Al-Zn Coated Galvalume Steel Coil with 0.14-2.0mm Thickness and 315°C Heat Resistance
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
GNEE
Product Description
A270 550 914 DC51D+Az 55% Al-Zn Steel Hot DIP Az50 Galvalum Coil Manufacturer
What Is Galvalume Steel?
Galvalume steel, also known as Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), or SGLC, is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at 600°C. Its structure consists of aluminium-iron-silicon-zinc, forming a compact quaternary crystal alloy. The surface of galvalume steel sheet is characterized by smooth, flat appearance with a silver-white base color. The special coating structure provides excellent corrosion resistance with a normal service life of up to 25 years. It offers good heat resistance for use in high temperature environments up to 315°C, excellent paint adhesion, and good processing performance for punching, shearing, and welding operations. The surface conductivity is very good.
Specification Sheet
| Parameter | Specification |
|---|---|
| Thickness | 0.14-2.0 mm |
| Width | 600-1500 mm |
| Coil ID | 508 / 610MM |
| Coil Weight | 3-8 Tons |
| Type of Substrate | Hot dipped galvanized steel coil, galvalume steel coil, cold rolled steel |
| Coating Types | Top paint: PVDF, HDP, SMP, PE, PU Primer paint: Polyurethane, Epoxy, PE Back paint: Epoxy, Modified polyester |
| Standard | ASTM-A653; JIS G3302; EN10147; etc |
| Payment Terms | T/T, LC, Kun Lun Bank, Western Union, Paypal, O/A, DP |
| Regular Order | 25 tons or one container, for less quantity, contact us for details |
| Hardness | Soft hard (HRB60), medium hard (HRB60-85), full hard (HRB85-95) |
| Surface Structure | Regular spangle, Minimum spangle, Zero spangle, Big spangle |
| Surface Treatment | Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass |
Packaging and Shipping
| Aspect | Details |
|---|---|
| Package | 3 layers of packing: inside kraft paper, middle water plastic film, outside GI steel sheet covered by steel strips with lock, with inner coil sleeve |
| Monthly Output | 10000 tons |
| Remarks | Insurance is all risks and accept third party testing |
| Loading Port | Tianjin/Qingdao/Shanghai Port |
Application Scenarios
Our products are primarily used in civil engineering construction (keel ceiling, perforated plate, cable bridge), agricultural livestock products (agricultural breeding sheds, steel structures, steel accessories, greenhouses, breeding equipment), railway roads, power communication (transmission and distribution high and low voltage switch cabinets, box-type substation bodies), automotive motors, industrial refrigeration (cooling towers, large outdoor industrial air conditioning) and various other industries.
Frequently Asked Questions
1. Is Galvalume steel fire-resistant?
Yes, Galvalume is a non-combustible material and typically carries a Class A fire rating, making it ideal for roofing and industrial structures.
2. Does Galvalume have "self-healing" properties?
Yes. Thanks to the zinc component, Galvalume provides sacrificial protection at cut edges or scratches, preventing rust from spreading into the steel core.
3. Can Galvalume withstand high temperatures?
Extremely well. It can resist oxidation and remain structural at temperatures up to 315°C (600°F) without discoloration, and even higher for short periods.
4. What are the primary uses of Galvalume?
It is widely used for metal roofing, siding, pre-engineered metal buildings, HVAC ductwork, automotive parts, and appliances.
5. Can Galvalume be used near the ocean?
While highly durable, it is generally not recommended for use within 1,500 feet (approx. 500m) of severe marine environments where salt spray is constant, as salt can accelerate the breakdown of the aluminum oxide layer.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Gnee Steel (tianjin) Co., Ltd.
Location
FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person
Kelly Zhang