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Galvalume Steel Coils

Your Professional Galvalume Steel Coils Supplier

 

Gnee Steel (Tianjin) Co., Ltd. was established in Anyang, Henan, in 2008. Our main products include galvanized steel plates, cold-rolled steel plates, pre-coated steel plates, steel pipes, PPGI, PPGL, PPAL, color-coated steel plates, pre-processed steel plates, coil steel, galvanized processing parts, and other related products.

 

Certifications
We have successfully passed ISO, CE, and other system certifications. Additionally, our products have been tested and approved by SGS, TUV, BV, and other leading testing organizations.

 

Our Strengths
To date, Gnee Steel has made a total investment of over 60 million yuan. The company’s factory covers nearly 40,000 square meters, with a storage capacity of 250,000 tons. We are equipped with 5 advanced slitting units and 3 horizontal shearing units, all of which feature intelligent operation, automation, and high precision in processing.

 

Sales Market
We primarily export our products to four key regions: South America (35% of exports), Africa (25%), the Middle East (20%), and Southeast Asia (20%).

 

 
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Galvalume Steel Coils

 

 

Galvalume steel coil is a type of steel sheet that has been coated with an alloy consisting primarily of aluminum and zinc. This unique coating provides a high degree of corrosion resistance, making it an ideal material for a wide range of applications, especially in environments that are prone to rust and corrosion. The typical composition of Galvalume coating is 55% aluminum, 43.4% zinc, and 1.6% silicon, which together create a robust barrier against the elements.

 

Standards

ASTM/AISI/BS/DIN/JIS/GB etc.

Base metal

DX51D/DX52D/DX53D/CGCC/SGCC/SGCH etc.

Thickness

0.12-2.00mm

Width

30-1500mm

Aluzinc coating

40-150g/m²

Coating component

55% Aluminum+43.5% Zinc+1.5% Silicon

Surface treatment

Anti-finger/Chromated/Skin-pass/Oiled/Dry etc.

Hardness

HRB55-HRB90

Coil ID

508-610mm

Coil Weight

2-10 Tons according requirement

Types

Coil/sheet/strip/corrugated

Applications

Roofing,wall panel,appliances,packaging,construction materials etc.

Certificates

ISO9001/ISO14001/SGS/BV/PVOC/SONCAP

 

 
 

Characteristics

Corrosion resistance

Alu-zinc steel has superior corrosion resistance, and its comprehensive anti-corrosion ability is 4 times that of galvanized steel of the same thickness. When zinc is worn, aluminum forms a dense layer of aluminum oxide to prevent corrosive substances from further corroding the interior.

 

Heat resistance

It can withstand high temperatures and is suitable for high temperature environments. It can withstand temperatures of more than 300 degrees Celsius.

Heat reflectivity

The heat reflectivity is very high, twice that of galvanized steel sheets. The surface can reflect a large amount of heat and light, which helps to save energy and is often used as a heat insulation material.

Processing performance

It has good processing performance and can be stamped, sheared, welded and other operations. The coating has good adhesion to the paint film and is easy to spray.

 

Economic efficiency

Under the same weight and the same coating thickness, the area of ​​​​alu-zinc steel is more than 3% larger than that of galvanized steel because the density of galvanized steel is lower than that of zinc.

Beauty

The surface is smooth and decorative.

 

 

 

 

 

 

Galvalume Steel Coils

 

 

Learn about galvalume steel coil application
Galvalume steel coils are used in a variety of applications due to their exceptional durability and corrosion resistance. Some of the most common uses include:

 

DX51D+AZ Galvalume Steel Coils
  • Roofing and Siding

    Ideal for residential, commercial, and industrial buildings due to its long-lasting protection against weather.

  • Automotive Industry

    Used in the manufacturing of car parts to enhance durability and resistance to rust.

  • Appliances

    Commonly found in household appliances such as refrigerators and washing machines.

  • Agricultural Equipment

    Provides a durable and rust-resistant material for farming tools and structures.

 

Chemical Compositions

 

Element Carbon (C) Manganese (Mn) Phosphorus (P) Sulfur (S) Silicon (Si)

Composition (%)

≤ 0.15

≤ 0.60

≤ 0.05

≤ 0.05

≤ 0.03

 

Mechanical properties

 

Property Value

Tensile Strength (MPa)

270 – 410

Yield Strength (MPa)

≥ 205

Elongation (%)

≥ 28

Vickers Hardness (HV)

85 – 120

Brinell Hardness (HB)

70 – 100

Rockwell Hardness (HRB)

≤ 60

Elastic Modulus (GPa)

~ 210

 

Composition and Structure

Galvalume steel coil is a type of coated steel with a protective alloy layer consisting of approximately:

 
 

55% aluminum

Provides strong corrosion resistance and durability.

 
 
 

43.4% zinc

Enhances protective properties through sacrificial corrosion protection.

 
 
 

1.6% silicon

Helps improve adhesion and prevents cracking during coil processing.

 

 

Certificates

 

 

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FAQ

 

Q: Can you produce the products according to my own drawings?

A: Yes, we can produce the products according to your drawings that will most satisfy you.

Q: How does your factory do regarding quality control?

A: Quality is a priority. We always attach great importance to quality control from beginning to end.

Q: Can I request to change the form of packaging and transportation?

A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

Q: How long is the delivery time?

A: 7~20 working days after confirming the payment.
If the order is urgent, we will push our workshop finish in advance.

Q: What is your Payment?

A: 100% T/T advance, Western Union (For Small Order)

Q: 30% T/T and balance 70% before the shipment?

A: 100% Irrevocable LC at sight (For Big Order)

Q: How does your factory do regarding quality control?

A: Quality is a priority. We always attach great importance to quality control from beginning to end.

We're professional galvalume steel coils manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy cheap galvalume steel coils for sale here and get free sample from our factory. For price consultation, contact us.

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