AZ50 Galvalume Steel Coil

Galvalume coil is a kind of aluminum-plated zinc alloy treatment method to form a coil with high strength, excellent corrosion resistance and beautiful appearance on the surface of steel, with high corrosion resistance and air pollution resistance. Galvalume coil also has good surface decoration, and can be processed into a variety of beautiful building and home appliance materials.

// Product  Description //

Galvalume coil is a kind of aluminum-plated zinc alloy treatment method to form a coil with high strength, excellent corrosion resistance and beautiful appearance on the surface of steel, with high corrosion resistance and air pollution resistance. Galvalume coil also has good surface decoration, and can be processed into a variety of beautiful building and home appliance materials.


The production process of aluminum zinc plating is as follows:

Uncoiling-cleaning-annealing-zinc pot-cooling-air knife-straightening-post-treatment-coiling

Heat Reflection

People use it as a thermal insulation material, and its thermal reflectivity is up to twice that of galvanized steel.

Heat Resistance

Galvanized steel coil has good heat resistance and can withstand high temperatures above 300°C, which is very similar to the oxidation resistance of aluminized steel at high temperatures. Commonly used in chimney tubes, ovens, illuminators, fluorescent lampshades, etc.

Corrosion Resistance

The key to the corrosion resistance of aluminized zinc steel coil is the protective performance of aluminum. Once the zinc is worn, the aluminum forms a dense layer of aluminum oxide, preventing further internal corrosion.

Economy

The density of 55% AL-Zn is smaller than that of Zn. Therefore, when the coating weight and thickness are the same, the area of the aluminum-zinc plated steel sheet is 3% larger than that of the galvanized steel sheet.

Easy to Paint

The coating material on the aluminized zinc steel plate has excellent adhesion, and can be directly coated with tar on advertising boards and common plates without pretreatment such as weathering.


Galvanized Coil.jpg


Product Parameters

Product Name

Galvalume Steel Coil

Thickness

0.12mm-3.00mm

Width

600mm-1500mm

Standard

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%


Chemical Composition

Al

Zn

Si

Fe

Cu

Cd

Pb

Sn

Ni

Close Cr

55-58

41-43

1.5-2

0.25

0.03

0.05

0.01

0.05

0.05

0.05


Mechanical Properties

Grade

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

-



Use of The Environment

Recommended Zinc Thickness

Indoor Use

AZ30 or AZ185 (30g/㎡or 185g/㎡)

Suburbs

AZ30 and Painting (30g/㎡)

Urban or Industrial Area

AZ185 (185g/㎡) 

Coastal Area

Thicker than AZ185 (185g/㎡) 

Punch or Deep Drawing Application

Thicker than AZ185 (185grams/㎡)



Surface Treatment Type

Code

Features

Chromic Acid Treatment

C

Good corrosion resistance, suitable for bare state

Chromic Acid Treatment+Oiling

S

Good corrosion resistance

Phosphoric Acid Treatment (Including Sealing Treatment)

P

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling

Q

Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage

Phosphoric Acid Treatment (Excluding Sealing Treatment)

T

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling

V

Has a certain corrosion resistance, good paint performance, and prevent rust

Oiling

O

Prevent rust during transportation and storage

No Treatment

M

Suitable for immediate painting


Material Comparison

Chinese StandardEuropean StandardsAmerican StandardJapanese Standard
DC51D+AZDX51D+AZCS Type B, Type CSGLCC
DC52D+AZDX52D+AZDSSGLCD
S250GD+AZS250GD+AZ255-
S300GD+AZ---
S350GD+AZS350GD+AZ345Class1 SGLC490
S550GD+AZS550GD+AZ550SGLC570



Shandong Zhongxuan Steel is more than just a product supplier; we are your trusted industry partner

We are committed to providing one-stop steel material solutions for domestic and international customers, meeting the needs of different industries for high-performance materials.

Personalise

We are manufacturer,We are able to satisfy customers’ individuation.

High Quality Products

Cold-rolled steel, hot-rolled steel, galvanized steel, galvanized steel, color-coated steel and other products

Provide Excellent Service

we have established long-term and win-win partnership with many large steel manufacturers

Request a Free Estimate

Need to know how much your cost?

SEND

// Professional Showcase · Safe Shipping //

In the shipping process, we strictly adhere to standardized operating procedures: we employ customized packaging solutions that are moisture-proof, scratch-proof, and deformation-proof, and each batch of products is reinforced according to international shipping standards. Whether it's full container export or domestic dedicated truck delivery, we achieve end-to-end visualized management from warehousing, packaging, labeling to logistics tracking, ensuring that goods are delivered safely and on time to customers worldwide.

Company Show

  • 微信图片_2025-09-10_153629_240
  • 微信图片_2025-09-10_153633_235
  • 3e80b08678df104de5330f020b5e26ad96adec4111d9a7-Dq11FX_fw1200
  • 6a225df06cd541579907a237014053f4
  • 68f6ea96635fcc344f377dda_steel supplier
  • wKj0iWAc50-AS-9-AAJuI7gQcS0026
  • a3253fdbd4b34d9d9a56fc2fce4c3a06~tplv-tt-shrink_640_0
  • 微信图片_2025-09-10_153712_064
  • bc30e5254785b02bed90e0f897098f0711ed34384a838-6CvHzz(1)(1)
  • 38a45084a8781e0b1af18879112f5d798d4a9790542ba9-bjK5DS_fw1200
  • 微信图片_2025-09-10_153640_632
  • 0c60f544feea90f8f7b6888e77a78ede930ccd3d122971-Jpic3K_fw1200

Transport Packaging

  • (18).jpg
  • 1 (4).jpg
  • 1 (3).jpg
  • 碳钢卷 (132).jpg
  • 115.jpg
  • Hot-rolled steel coil2.jpg
  • 6c2656bbebe6788c55a0d6244dd55e71c3c3bdd78c6be-eojo9Y
  • banner7.jpg
  • 33f50198f8724aa525583f06b29ae5c4654bfc6b176c7a-97fz9l
  • 10004
  • e091e2fd59b2a574ec9f047c070a6bcbba1b7a88122273-yPBvJR_fw1200
  • 千库网_钢材机器工厂生产摄影照片_摄影图编号20694586
  • bannre3.jpg
  • Carbon Steel

Certificate qualification

As a modern integrated steel enterprise, Shandong Zhongxuan Steel Group not only strives for excellence in its production and service systems, but also consistently adheres to the highest industry standards, establishing a rigorous, standardized, and international quality control and certification system. The company's products comply with international standards such as Japanese JIS, American ASTM/AISI, and European EN, and some products have obtained CE certification, meeting the access requirements of multiple global markets.

TESTIMONIALS

“We’ve been working with Zhongxuan Steel for over two years, and they’ve become a true partner in our business growth. Not only is their material quality consistent, but they also take the time to understand our needs and offer practical suggestions. In a market where trust is hard to find, they stand out as honest, professional, and dependable.”

Lucas M.

Lucas M.

Supply Chain Manager, Netherlands

“Working with Zhongxuan Steel feels professional and stress-free. Their team speaks clear English, answers fast, and keeps us updated at every step — from production to shipment. For any overseas buyer looking for a trustworthy Chinese steel partner, I highly recommend them.”

James R.

James R.

Industrial Equipment Supplier, South Africa

“What sets Zhongxuan apart is their customer care. They treat every order — big or small — with the same attention. We started with a small trial, and now they’re our main supplier. Transparent pricing, clear documentation, and no hidden fees.”

Emma W.

Emma W.

Trading Company Director, United Kingdom

“We needed a steady supply of steel plates for our infrastructure projects in Southeast Asia. Zhongxuan Steel has delivered every order on schedule, even during busy seasons. Their logistics support made international shipping much easier than we expected.”

David K.

David K.

Project Procurement Manager, Singapore

“We’ve been importing steel from China for years, and Zhongxuan Steel is by far the most reliable supplier we’ve worked with. Their materials arrive on time, well-packaged, and exactly as described. No surprises — just consistent quality and honest communication.”

Michael T.

Michael T.

Construction Materials Importer, Australia

“Great experience from start to finish! The team responded quickly to our inquiries, helped us choose the right products, and shipped everything within the promised timeline. Our customers noticed the improved quality of our metal products right away.”

Sarah L.

Sarah L.

Manufacturing Business Owner, Canada

// Products  Recommended //