Galvalume Steel (Aluminum-zinc Coating Steel)

Galvalume steel composition is 55% aluminum,43.3% zinc and 1.6% silicon.The plate has smooth surface and excellent corrosion resistance of the atmosphere,which is 2 to 6 times higher than hot-dipped galvanized steel if same thickness of plating coating.After three processes,including payoff reel,crop shear and welding,enter into the continuous annealing furnace.During the annealing process,strips are heated closer to the recrystallizing temperature,then heated to 20~50 above the recrystallizing temperature in the reducing furnace.After keeping the same temperature for 170s,strips are naturally cooled to the normal temperature in the slow cooling process.Afterward,strips enter into the ZN-AL pot through the elephant's trunk and begin in the hot-dip coating process.The optimum temperature range of the plating coat is 630-660℃.Coated with aluminum-zinc alloy,strips enter into the cooling tower by the steady roll and air knife.After fast cooled with wind or water,they are directly produced into Al-Zn armor plates.The general rate of cooling 30/s or so,and strips are cooled to about 60℃.

Specifications

■Standard: ASTM A792,JIS G3321,GB/T14978-2008,EN10326-2004

■Grade: SGLCC,SGLCD,SGLC400~570,DC51D+AZ~DC54D+AZ

■Thickness: 0.15-2.5mm

■Width: 600-1250mm(Usual:914mm,1219mm,1220mm,1250mm)

■Base Metal: Cold-Rolled Steel

■Al-Zinc Coating: 50-150g/sqm

■Coil Internal Diameter: 508mm/610mm

■Surface Treatment: Chromate Passivated,Non-Chromate Passivated,Oiled,Anti-Finger Print And Etc.

■Tolerance: Thickness:+/-0.05mm,Width:+5/-2mm,Total Quantity:+/-10%,Alu-Zinc Coating:+/-10%

■Packing Condition: Seaworthy

Product Features:

1)Excellent Durability

Galvalume has three to six times better corrosion resistance compared to zinc coated galvanized steel sheet of the same coating thickness.

2)Heat Resistance

The capacity ratio of the aluminum in coated layer of galvalume is over 80%,enaling the products to withstand a prolonged temperature of 315 degrees celsius without discoloration or oxidization.

3)Heat Reflectivity

Galvalume provides high energy efficiency with its superior heat reflectivity,resulting in low heat consumption.

4)Smooth Surface

Having a consistent and brilliant sliver spangle,galvalume is highly appropriate for decorative uses.

5)Economical Efficiency

With available widths of maximum 1500mm,galvalume reduces the loss and is suitable for manufacturing ducts and other construction materials.

6)Excellent Paintability And Workability

Galvalume has better adhesiveness of paints to its coated layer compared to galvanized steel sheet.The workability of galvalume is similar to that of galvanized steel.The ability to suppress fine cracks on the coating layer enhances the durability of the processed area.

Product Applications

Infrastructure: Roofing; External Siding; Garage; Shutter;
Household Appliances: Oven; Air-Conditioning Ventilation System; Solar Water Heater; Electronics;
Automobile: Mobile Muffler; Vent Pipe; Catalysis Converter Heater Shield; Bottom Accessories;
Industrial Instrument: Electric Control Cabinet; Industrial Freezer Chest.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

We are specializing in the production and sale of various specifications of the color coated aluminum plates. After years of rapid development, the company has 6 the most advanced preliminary roller coating production lines, and tension levelling, cleaning, coating, embossing, cross-cutting, slitting, wave cutting, etc. The annual processing capacity of us is more than 100,000 tons.

With advanced production technology, high-quality product quality, complete supporting Equipment, adequate substrate aluminum plate inventory, and the fastest and professional services, we are the first choice for our partner, our products sold at domestic and foreign customers.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.

Corten steel Plate

Corten steel plate can be name as weather resisting steel plate, which is a kind of low alloy structural steel with better anti-corrosion property than normal non-alloy steel plate. The standard for corten steel is GB/T4171-2008

The chemical composition of Corten steel plate.

Chemical	C(max)	Si(max)	Mn(max)	S(max)	P(max)	Cu(max)	Al(max)
Composition	0.12-0.21	0.2-2.0	0.7-2.0	0.036	0.034	0.10-0.40	0.2

Corten steel Development Direction

Different weathering ability element affects different corrosion resistance in different environments. For example, molybdenum is effective for reducing the corrosion rate of industrial atmosphere, but the corrosion resistance to marine atmosphere is not obvious. Therefore, according to the different corrosion environment, the corten steel develops to specificity and special appliance. Also the development of its composition system also changes in order to improve the effectiveness and application efficiency of the weather resistance elements.

As knowing, resistant to seawater corrosion steel, resistant to marine climate corrosion of steel, acid-resistant climate corrosion steel and tropical weather corrosion steel and other special steel are the representatives of this type of corten steel, so weathering steel should develop to diversified direction.

Changzhou Dingang Metal Material Co., Ltd devotes to providing types of designed laser cutting corten sheet which with same chemical property but much fashion elements. By reading the photos and read our website, you will understand more of them. We do artwork on the steel with itself yellow to brown color. It is a kind of special beauty.

Website: www.cnchangsong.com

Changzhou Dingang Metal Material Co., Ltd

China Steel Export Volume Reduce In the First Quarter Of 2017

According to the statistics of data of China customs,in the first quarter of 2017 the volume of steel export is about 20.73 million tons (fell 25% year on year),the value is about CNY 91.34 billion (rise 18.4% year on year),the export average price is about CNY 4406.4/per ton (rise 57.9% year on year).

Firstly,the steel consumption in domestic market is better than expected,the market prospects are extremely good.In the meanwhile,the sale profit of stock still keep high.In January and February,the investment in infrastructure construction increase about 27.3%.That result in the expection of steel market demand exceed output heat up.Certainly,the rising price of major steel products also stimulated the enthusiasm of steel mills to put more resources to domestic market.

Opposite,steel export declined significantly.Now we are face highly competitive from external market.Many countries placed punitive tariffs to China steel exportation.On 6^th Apr,the European Union have slapped new anti-dumping tariffs on hot-rolled flat steel products imported from China.Ranges from 18.1% to 35.9%,period for 5 years.Here’s no doubt that would restrict China steel export.

In additional, establishment of Xiongan new area would form a strong support to steel demand,in the short term the news can be a lead role on steel’s price.Accompanied by the policy of decreasing overcapacity and environmental protection,it’s benefit of steel and iron ore industries.

On the basis of calculate by citibank,if wanna to copy a new Shenzhen within next 10 years,it would need about 120-140 million tons iron steel.In the current domestic steel demand is about 700 millions tons per year,that means the total demand would increasing by 2% each year.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

We are specializing in the production and sale of various specifications of the color coated aluminum plates. After years of rapid development, the company has 6 the most advanced preliminary roller coating production lines, and tension levelling, cleaning, coating, embossing, cross-cutting, slitting, wave cutting, etc. The annual processing capacity of us is more than 100,000 tons.

With advanced production technology, high-quality product quality, complete supporting Equipment, adequate substrate aluminum plate inventory, and the fastest and professional services, we are the first choice for our partner, our products sold at domestic and foreign customers.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.

Color Coated Aluminum Corrugated Roof Sheet

Color coated aluminum corrugated sheet, also known as Color coated Aluminum tile, Corrugation Color coated Aluminum sheet, is using of aluminum plate after rolling and cold bending into variety of pressed wave sheet. The Corrugated sheet is mainly applied for industry, civil construction, warehouse, special buildings, roofing, walls, interior and exterior decoration.

Main Changzhou Dingang Aluminum plate Specification Used for Corrugated Roof Sheet

Alloy: A3003, A3004, A3105

Thickness: 0.15-3.0mm

Width: Less than 1250mm

Length: 2000-6000mm

Color: RAL or as customized requirement

Tile types

5 Advantages of Color Coated Aluminum Corrugated Sheet

1.     Color coated aluminum corrugated sheet is with light quality, and the density is only one-third of steel. The price per square meter by calculating the same thickness of steel and aluminum is almost the same.

2.     The Color coated corrugated aluminum sheet is easy processing molded and convenient quick construction, which greatly reduces the construction intensity.

3.     Color coated aluminum corrugated sheet is with long use life, and good corrosion resistance. The warranty is over 15 years.

4.     High recycling value. The steel will be rotten after few years using, which is almost no recycling value. But because of aluminum’s an-corrosion property, the value is much higher to at least 80% recycling.

5.     Color coated aluminum corrugated sheet is widely used in insulation project such as oil refineries, power plants, pharmaceutical plants.

 Color coated Aluminum coil/sheet/corrugated sheet, your best choice.

 Changzhou Dingang Metal Material Co., LTD

 www.cnchangsong.com

Xiong’an New Area Establishment Stimulating Metals Demand

Establishment of XIONGAN new area,it would benefit on iron ore,coal and non-ferrous metal mining industry development.

Here’s no doubt that large scale and high standard construction will drive the increase of steel demand.According to the planing area,the initial steel consumption increment is about 10 million tons,on medium term it can reached more than 20 million tons, corresponding the long process of steel mills for iron ore demand increase of 17 million and 35 million tons.Combining to China government’s implement policy of decrease surplus capacity,the part of consumer demand will give priority to high-grade steel ore.On the basis of calculate by citibank,if wanna to copy a new Shenzhen within next 10 years,it would need about 120-140 million tons iron steel.In the current domestic steel demand is about 700 millions tons per year,that means the total demand would increasing by 2% each year.

Establishment of Xiongan new area would form a strong support to steel demand,in the short term the news can be a lead role on steel’s price.Accompanied by the policy of decreasing overcapacity and environmental protection,it’s benefit of steel and iron ore industries.In the long term,high-grade iron ore will continue to be preferred choice of various steel mills.

After the news announcement,the price of non-ferrous price in China market firmed initially.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

We are specializing in the production and sale of various specifications of the color coated aluminum plates. After years of rapid development, the company has 6 the most advanced preliminary roller coating production lines, and tension levelling, cleaning, coating, embossing, cross-cutting, slitting, wave cutting, etc. The annual processing capacity of us is more than 100,000 tons.

With advanced production technology, high-quality product quality, complete supporting Equipment, adequate substrate aluminum plate inventory, and the fastest and professional services, we are the first choice for our partner, our products sold at domestic and foreign customers.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.

Anodic Oxidation Aluminum plate- Combination of Fashion and Thechnology

First typical of Anodic Oxidation Aluminum is Anodized Mirror Aluminum Plate. Through mirror disposing on the aluminum plate, it will present the mirror effect with high 90% specularity.

Alloy: we use imported A1085 base material.

Surface: with 1-4 mic oxidation on the surface

Colors: Silver, Gold, Black, Coffee, etc.

Thickness: 0.15-2.0 mm normally.

Width: Less than 1250mm

Length: Any length as customer required.

Application: Lighting, namecard, home appliances, signboard, furniture, etc.

Second typical of Anodic Oxidation Aluminum is Brushed Oxide Aluminum plate. Brushed Oxide Aluminum plate is to use anrasive paper repeatedly scraps the aluminum plate with lines.In recent years, more and more aluminum plate produc’s metal shell chooses to use metal brush technology in order to get the artistic and anti-rust function.

Brushed oxidation aluminum plate is widely used in lighting griller, solar energy thermal arrest light reflective material, outwall decoration, indoor construction decoration, home appliances face plate, shell of electronics, inner and out car decoration, furniture and kitchen, sign board, luggage, jewel casket.

The alloys which are suitable for making brushed aluminum

1.    pure (non-alloy) aluminum plate

A1050, A1060, A1100. This series is the most common aluminum used for regular industry.

2.    alloy aluminum plate

2XXX，the feature of 2 series aluminum plate is the high hardness. It belongs to avaition alminuu.So common industry does not rulely use this alloy series.

3XXX, the typical alloy of this series is A3004.  The feature of 3series is the good rust proofing.It is normally used in humid enviroment such as air-conditioner, water tank, car’s bottom part.

5XXX，the typical alloys are A5052，A5005，A5083, etc. The key features are low density, high anti-strength and high ductility. 5 series alloy aluminum plate is the most effective one for making brushed aluminum plate.

Welcome your inquiry for our Anodic Mirror Aluminum plate and Brushed Anodic aluminum plate.

Changzhou Dingang Metal Material Co., Ltd

www.cnchangsong.com

Diverse Aluminum Products

Brushed Aluminum Plate:

With abrasive paper repeated scraping aluminum plate to make it to present line sense. Its technical flow process can be divided into three main categories: take off ester, sanding and water scrubbing. After anodizing treatment that make the surface of aluminum plate to produce oxide diaphragm layer to appear every hair like trail.

Oxidizing Aluminum Plate:

Under particular conditions and extra electric current effect,then put aluminum plate into corresponding electrolyte(for example sulfuric acid, chromic acid, oxalic acid and etc) as anode,it’s called anodised aluminum.The thickness of thin layer of alumina can reach 5~20 microns,also if required hardness oxide layer,the thickness can be reached 60~200 microns.That most widely used in anodizing mirror aluminum.

Mirror Aluminum Plate:

Processed by rolling,polishing and anodized method to make aluminum surface appear like a mirror.

Checkered Aluminum Plate:

On the basis of ordinary aluminum plate,processed by rolling and pressing to produce various checkered plates,that can be widely used in packing,construction and curtain wall.Such as diamond,lentils,3 or 5 bars,stucco and etc.

Specific cleaning steps as following:

1.Rinse with plenty of water for aluminum plate cover

2.Lightly wiping with soft cloth which has been soaking with detergent

3.Rinse with plenty of water for aluminum plate cover again to wash waste

4.Inspect the surface,stress clean dirty place

5.Rinse the aluminum cover to wash away the detergent

Note: Don’tclean the hot aluminum (the temperature not exceeded 40 degrees celsius) due to it is harmful to the paint layer ifmoisture volatilizes quickly

By the way,must use neutral detergent to instead of strongly alkaline detergent such as potassium hydroxide and highly acidic.

Changzhou Dingang Metal Mateial Co.,Ltd

Which has been in the line for many years and is known as one of the leading exporters of metal materials in China since 2002.

We are specializing in the production and sale of various specifications of the color coated aluminum plates. After years of rapid development, the company has 6 the most advanced preliminary roller coating production lines, and tension levelling, cleaning, coating, embossing, cross-cutting, slitting, wave cutting, etc. The annual processing capacity of us is more than 100,000 tons.

With advanced production technology, high-quality product quality, complete supporting Equipment, adequate substrate aluminum plate inventory, and the fastest and professional services, we are the first choice for our partner, our products sold at domestic and foreign customers.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.

Looking forward to receiving your enquiry soon.

What Is The Difference of PE Paint and PVDF Paint for Coated Aluminum?

The paint for Color coated aluminum coil can be classified into two types- PE paint (Polyester paint) and PVDF paint (Fluorocarbon paint). Most people know PVDF paint is much expensive than PE paint. Yet do you know why it is expensive? Do you understand the difference of PE paint and PVDF paint of color coated aluminum coil? You will learn more by reading my words below.

1. PE paint of Color Coated Aluminum coil

The PE coating formed on the surface of the aluminum sheet by multiple baking has protective and decorative properties for the aluminum sheet. PE coating is a kind of anti-UV UV coating. The UV absorber can be divided into sub-gloss and high-gloss series according to the glossy degree. PE paint not only can give rich colors for color coated aluminum products which is with good gloss and smoothness, as well as superior texture and hand-feeling, but also can increase the sense of hierarchy and three-dimensional. PE paint can protect the atmosphere exposed object from the ultraviolet radiation, wind, rain, frost snow and frozen attack. Due to the temperature, freeze-thaw cycle, corrosive gases and microbial effects, the PE coating can play a protective role for the object. PE paint is especially suitable for interior decoration and billboards.

2. PVDF paint of Color Coated Aluminum coil

Fluorocarbon coating is PVDF resin paint. The chemical structure of the fluoric acid base is bounded by fluorine- carbon bonding. The chemical structure stability makes the PVDF coating’s physical property different from the general coating. In addition to excellent performance for the mechanical properties of the wear resistance, impact resistance, the PVDF coating shows a long anti-fading, anti-ultraviolet performance especially in the harsh environment. After high temperature baking film, the molecular structure in the coating is close which has superior weather resistance property.

The PVDF coating is mainly used for painting and decorating the building indoor and outdoor aluminum. Widely colors for choosing, makes many magnificent building’s curtain wall more solemn, durable and gorgeous. The use life for PVDF paint is more than 20 years. USA research institutes tested and compared the PVDF coating, super coating and common coating by placing the three samples in the Florida, United States with hot sun exposure, as well as in humid salty air with 12 years exposure. This test conclude that the stability and durability of PVDF coating is 30 percentage than super coating and 80 percentage than common coating. The PVDF coating is ensured that the PVDF color coated aluminum coil can be used in variety of harsh environments. 

So friends, you can contact us for inquiry of color coated Aluminum coil, PE or PVDF paint according your product requirement. We await your further email.

Trista Yang

Skype: trista_yang1989

Mobile: 0086 15189756323

Email: trista@cnchangsong.com

Website: www.cnchangsong.com

Changzhou Dingang Metal Material Co., Ltd