SGLD Galvalume Steel Roofing Sheet

Galvanized steel manufacturer SteelPRO Group provides high-quality SGLD, S350GD AZ, DX51D AZ, and other grades of Galvalume steel roof panels, which meet ASTM, JIS G3321, and EN standards. There are many shapes and colors for you to choose or customize. We also provide deep processing, cutting and other services.

Standard: ASTM A792, JIS G3321, EN 10346
Grades: SGLD, SGLCC, SGLCD, DX51D+AZ, DX52D+AZ, S350GD AZ, S550GD AZ, etc.
Technique: Hot-Dip Coating, cold rolling
Roofing Sheet Type: Corrugated Sheets, PBR Panel, Standing seam galvanized metal roof, Bare Galvalume Roofing Sheet, PPGI Roofing Sheets, etc.
Test: Zinc Coating Thickness Test, Bend, Cross-hatch, Salt Spray Test, Tensile Test, UV Aging Test, Temperature-Humidity Cycle, etc.

SGLD Galvalume Steel Roofing Sheet

Our SGLD Galvalume Roofing Sheet outperforms other brands of galvanized steel on the market in terms of durability, energy efficiency and corrosion resistance. Compared with other brands, our higher aluminum content and uniform coating provide better protection, especially on cut edges and scratches, and are not easy to rust. In addition, its high reflectivity effectively reduces the temperature inside the house, saving cooling costs. Suitable for residential, industrial and agricultural buildings, our Galvalume roofing sheets are not only beautiful and durable, but also have lower long-term maintenance costs, making them a more economical choice.

Product Specifications

Product Name	SGLD Galvalume Steel Roofing Sheet
Thickness	0.12 mm – 1.2 mm
Width	20 mm – 1500 mm
Width	Normal width is 914/1000/1219/1250/1500 mm
Length	2000 mm – 6000 mm,Customized
Zinc Layer	30-275 g/m²
Wave Width	76 mm – 250 mm, Customized
Wave Height	18 mm – 50 mm, Customized
Number of Peak/Valley	Customized
Top Coating Thickness	15 – 25 μm
Back Coated Thickness	15 – 25 μm
Type of coating process	Front: double coated & double drying;
Type of coating process	Back: double coated & double drying; single coated & double drying;
Color	According to RAL color chart, Bare, Customized
Edge	Mill edge, Slit edge
Surface Treatment	Anti-finger print, Skin pass, Oiled, Dry, Chromated, Embossed, Lamination
Spangle	Big, Regular, Mini, Zero
Certificate	IATF 16949:2016, ISO 45001, ISO 9001, ISO 14001
Tolerance	±1%
Coating Material	PE, SMP, HDP, PVDF
Processing Service	Bending, Welding, Decoiling, Cutting, Punching, Surface Coating
Invoicing	By actual weight
Delivery Time	7-15 days
Payment	T/T, L/C, Credit Card
Port	Shanghai, Qingdao, or according to your requirement
Packaging Details	In bundles, in bulk, customized packing

Chemical Compositions

Element	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)
Composition (%)	≤ 0.12	≤ 0.50	≤ 0.04	≤ 0.04

Mechanical properties

Property	Value
Tensile Strength (MPa)	270 – 370
Yield Strength (MPa)	140 – 240
Elongation (%)	≥ 28
Vickers Hardness (HV)	80 – 120
Brinell Hardness (HB)	70 – 100
Rockwell Hardness (HRB)	50 – 70
Elastic Modulus (GPa)	≈ 210

Industries & Applications

Residential, Commercial, and Industrial Roofing: Widely used in homes, warehouses, and factories, SGLD Galvalume provides a durable, cost-effective, and low-maintenance roofing solution, with reflective properties to aid in energy efficiency.

Agricultural Buildings and Cold Storage: Ideal for barns, sheds, and cold storage facilities, this material resists moisture and corrosive elements, while its reflective efficiency helps stabilize temperatures and reduce cooling costs.

Wall Cladding and Architectural Applications: Frequently applied to exterior walls and modern architectural facades, it adds durability, weather resistance, and a contemporary aesthetic to visible building elements.

Solar Panel Mounting and Infrastructure Projects: Serves as a robust base for solar panels and is also used in transportation infrastructure such as bridges and railway shelters, offering strength and corrosion resistance in varied climates.

Other Infomation

There are some simple ways to tell the difference between galvanized steel and galvanized steel:

Touch test: Touch the surface with your hand. SGLD Galvalume sheet feels smoother, while galvanized sheet will be slightly rougher because the galvanized aluminum-zinc coating makes the surface smoother.
Observe scratches or edges: If you can see cut edges or small scratches, the corrosion resistance of Galvalume will make these places less likely to rust, while the exposed parts of galvanized sheet are more likely to oxidize and rust.
Reflective effect: Observe the reflectivity under light. Galvalume sheet will have a stronger reflective effect because it has a higher aluminum content; while galvanized sheet has a relatively weaker reflectivity and is not as shiny as Galvalume.
Look at the appearance: SGLD Galvalume sheet has a brighter, silvery-white surface with a fine grain feel; while galvanized sheet is a darker silver-gray with no grains.

Whether to choose SGLD Galvalume Roofing Sheet or galvanized steel roofing sheet depends mainly on your requirements for the use environment and durability. In short, Galvalume sheet is more suitable for long-term use and harsh environments, while galvanized sheet is suitable for projects with limited budgets and ordinary environments.

If your building is in a humid place, such as near the sea, or the environment is more corrosive (such as places with acid rain), then Galvalume sheet is a better choice. It contains aluminum in the coating, which is very corrosion-resistant and can remain rust-free for a longer time. The service life can reach 20-40 years, which is very worry-free.

If the environment is relatively dry, the climate is mild, or it is a short-term project, such as a warehouse, temporary building, etc., then galvanized steel sheet is sufficient. It is relatively cheap, and although it is not as durable as Galvalume in high humidity, it can still do the job in ordinary environments.

Our Inventory

SteelPRO Group is a Chinese steel manufacturer and supplier. With strong production capabilities and advanced production lines, we produce steel that can withstand the harshest environments. Our facilities are equipped with state-of-the-art technology and high-capacity production lines, ensuring that we meet large-scale needs without compromising quality. We work with reputable suppliers and maintain strict quality control, ensuring consistency and durability in every product.

Our main offerings encompass steel pipes, plates, coils, bars, strips, stainless steel series, carbon steel series, high-strength steel series, nuclear-grade steel, galvanized steel, as well as steel specifically for wind and solar energy applications, and more.

Packing

SteelPRO Group ensures that all products arrive in perfect condition, using multi-layered protection like waterproof wrapping, edge guards, and impact-resistant materials. Our products are securely stacked on durable metal or wooden pallets with custom strapping for stability, ideal for long-distance shipping.

For specific needs, we offer customized packaging options and work with reliable logistics partners to track and ensure safe, timely delivery.

Our Service

1.Welding

2.Metal Fabrication

3.CNC Machining

4.Lathe

5.Forming

6.OEM/ODM

7.Quenching

8.Tempering

What are the advantages of SGLD Galvalume Roofing Sheet over ordinary galvanized steel sheets?

SGLD Galvalume Roofing Sheet has stronger corrosion resistance and longer service life than galvanized steel sheets, especially in harsh environments such as high humidity and coastal areas. It also has higher sunlight reflectivity, which helps reduce the cooling cost of buildings.

What are the optional specifications and surface treatments of SGLD Galvalume Roofing Sheet?

We provide a variety of specifications of SGLD Galvalume Roofing Sheet, including corrugated sheets, PBR panels and vertical locking panels, and you can also choose color-coated surfaces or exposed galvanized surfaces to suit different architectural styles and functional requirements.

Can SGLD Galvalume Roofing Sheet be used for wall decoration?

Yes, SGLD Galvalume Roofing Sheet can be used for walls and roofs, especially for exterior wall decoration that requires high durability and a modern appearance. It is not only beautiful but also provides additional protection.

Does SteelPRO Group support custom sizes and special needs?

SteelPRO Group supports the needs of customized sizes and special coating thicknesses, helping customers get the roofing sheets that best suit their projects and ensuring compliance with international standards and customer specific requirements.

Are SteelPRO Group's products environmentally friendly?

Yes, we strictly follow environmentally friendly production standards. SGLD Galvalume Roofing Sheet meets ISO 50001 energy efficiency standards and other environmental requirements, and the product materials are recyclable to reduce the impact on the environment.

What is SteelPRO Group's customer service policy?

We provide full support, from product consultation, selection to installation guidance, and have a dedicated after-sales team to help solve any problems in use to ensure a worry-free experience for customers.