شيجياتشوانغ، خبي، الصين

Galvalume Steel Corrugated Roof Sheet

Galvalume steel sheet, also known as alu-zinc alloy steel sheet, are made from cold-rolled or hot-rolled substrates that are galvanized with aluminum alloy. Yeson Steel provides aluminum-zinc-coated steel panels and raw materials in all shapes and sizes ranging from AZ20 to AZ350 g to a wide range of customers in various fields.

Galvalume Steel Corrugated Roof Sheet – Product Overview

Galvalume steel corrugated roof sheets are available in a variety of profiles including wavy, trapezoidal, and ribbed designs. Suitable for use as single-layer roofing, overlay on existing roofs, or as part of steel sandwich panels, these sheets offer a cost-effective alternative to traditional roofing materials.

Lightweight and easy to install, they significantly reduce labor time and costs. Their durability, low maintenance requirements, and recyclability further enhance their economic advantage. The sheets feature a smooth, bright surface with an aesthetically pleasing corrugated design. Excellent paint adhesion allows for custom color coatings, providing both visual appeal and design flexibility.

الميزات الرئيسية:

✅ Superior Corrosion Resistance
The aluminum component in the Galvalume coating forms a dense, self-protecting oxide layer when exposed, delaying further corrosion. This results in up to 3x better corrosion resistance than standard galvanized steel, extending service life by 2–6 times under comparable conditions.

✅ High Thermal Reflectivity
With a reflectivity coefficient twice that of conventional galvanized roofing, our sheets help reduce indoor temperatures in summer, cutting cooling costs and improving energy efficiency—ideal for warm climates.

✅ High-Temperature Resistance
Capable of withstanding temperatures over 300°C, Galvalume sheets maintain structural integrity and performance under prolonged heat exposure.

✅ Smooth & Uniform Finish
The surface is consistently smooth with an attractive silvery-spangled appearance, ready to use without additional treatment—perfect for both residential and commercial applications.

✅ Excellent Formability & Paint Adhesion
The substrate offers outstanding formability for easy cutting, punching, and shaping. It also ensures strong paint adhesion, allowing for durable and vibrant painted finishes.

Product Parameters

Product Name

Galvalume Steel Sheet

سماكة

0.12mm-6.00mm

عرض

600mm-1500mm

طول

1m-12m, Support Customization

معيار

AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.

Thickness of Aluminum Zinc Coating

30-185g/m²

Content of Al-Zn Coating

 Al: 55%, Zn: 43.5%, Si: 1.5%

التركيب الكيميائي

Al

Zn

سي

Fe

Cu

Cd

Pb

Sn

ني

Close Cr

55-58

41-43

1.5-2

0.25

0.03

0.05

0.01

0.05

0.05

0.05

الخصائص الميكانيكية

درجة

Yield Strength MPa≥

Tensile Strength MPa≥

Elongation A%≥

DX51D Z/ZM/AZ/AM

240-380

270-500

22

DX52D Z/ZM/AZ/AM

140-300

270-420

26

DX53D Z/ZM/AZ/AM

140-260

270-380

30

DX54D Z/ZM/AZ/AM

120-220

260-350

36

S220GD Z/ZM/AM

220

300

20

S250GD Z/ZM/AZ/AM

250

330

19

S280GD Z/ZM/AM

280

360

18

S300GD A/AM

300

380

18

S320GD Z/ZM/AM

320

390

17

S350GD Z/ZM/AZ/AM

350

420

16

S450GD A/AM

450

480

15

S550GD Z/ZM/AZ/AM

550

550

-

Material Comparison

Chinese Standard

European Standards

American Standard

Japanese Standard

DC51D+AZ

DX51D+AZ

CS Type B, Type C

SGLCC

DC52D+AZ

DX52D+AZ

DS

SGLCD

S250GD+AZ

S250GD+AZ

255

-

S300GD+AZ

-

-

-

S350GD+AZ

S350GD+AZ

345

Class1 SGLC490

S550GD+AZ

S550GD+AZ

550

SGLC570

Galvanized Surface Selection

Type of Coating

Recommended Coating Weight

Aluminum-zinc Alloy

30/40/50/60/75/90/100/150

A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm

 

Project

Classification

Symbol

Type of Coating

Aluminum-zinc Alloy

AZ

تشطيب السطح

Conventional Sequins

R

Minimize Sequins

M

Skin Through

س

معالجة السطح

Chromate Passivation

ج

Non-chromate Passivation

C5

Chromate Passivationoiling

CO

Chromium-free Passivationoiling

CO5

Anti-fingerprint

ن

Chromate-free/Anti-fingerprint

N5

No chromate high weather resistance fingerprint

NW

Oil filling

0

No treatment

U

Types of Galvanized Surface

Zero Spangle
Minimized Spangle
Galvalume Steel Sheet - Normal Spangle
Normal Spangle
Normal Spangle

Aluzinc composition

● Cold rolled steel coil

● Aluzinc paiting layer

● Anti fingerprinting, chromate, OIled,non-oiled

Packing and delivery

We can provide,wooden pallet packaging,Wooden packing,Steel strapping packaging,Plastic packaging and other packaging methods.We are willing to package and ship products according to the weight, specifications, materials, economic costs and customer requirements.We can provide container or bulk transportation, road, rail or inland waterway and other land transportation methods for export. Of course, if there are special requirements, we can also use air transportation

Why Choose Our?

Yeson Steel Aluminum Zinc Coating Production Line: from substrate cleaning, coating, cooling, and curing to final roll rolling and cutting, with a strict production management system, which has been certified by ISO, SGS, and others. In addition, we also provide in-depth processing such as slitting, slitting, bending, punching, and molding.

Surface treatment: We have a wide range of surface treatments to choose from, such as lamination, passivation, phosphating, fingerprint resistance, painting, and so on.

التعليمات

Q: What is your regular shipment.

A: Usually are containers or bulk, according to your require

Q: Could you accept third-party tests?

A: yes, a third-party test is accepted. We also can send free samples to your laboratory test.

Q: Can We visit your factory?

A: Yes, welcome you come to our factory to have a visit. We will arrange a team to accompany you according to your plan.

Q: What's the capacity of your mill?

A: We have 15 years'' production experience.Six product lines, two hot-dipped galvanized steel lines, 2galvalume steel lines, two-color coated steel lines, output 9,00, 000MT/YEAR. Keep good quality and competitive prices.

Q: How can we guarantee the quality?

A: Free sample can send for your reference before confirming an order.
All test videos and pictures will send for your reference when produced.

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