What Main Thickness Range We Supply?

What main thickness range we supply? Firstly, I would like to let you know the three kinds of thicknesses to color coated aluminum coil products. 1. Base material thickness, 2. Coating paint thickness, 3. Protect film thickness.

The thickness of color coated aluminum coil is related to the coating equipment. Normally the coating equipment can process 0.3-1.2mm thickness coated aluminum coil. This thickness range of coated aluminum coil is the most normal used specification which can satisfy most of the applications. Changzhou Dingang Metal Material Co., Ltd produces various thicknesses of color coated aluminum coils, and produces nonstandard sizes and width. Currently, we supply color coated aluminum coil and sheet at 0.2-1.5mm thickness range, and one side paint, two side paint, back side paint, etc.

The thickness control of color coated aluminum coil: commonly, one side paint thickness is approx 15um, double sides paint thickness is approx 25um and back side paint thickness is approx 5-8 um. The protect film is normally 0.05mm which is commonly PE protect film. We suggest customers to use mid viscosity or high viscosity protect film to protect the color coated aluminum surface paint in order to avoid the scratch problem when corrugation or cutting and bending process, etc. We would like to point out that PVDF painted aluminum coil must be double sides painted, and PE painted aluminum coil can be chosen one side paint and two sides paint.

The color coated aluminum coil thickness tolerance: The thickness tolerance of color coated aluminum coil can be controlled within +/-3-5mic which belongs to precise tolerance products. Changzhou Dingang Metal Material Co., Ltd supply kinds of high precise painted aluminum coils and sheets and ensure the paint thickness as well as thickness tolerance. We sincerely welcome your inquiry.

Changzhou Dingang Metal Material Co., Ltd

www.cnchangsong.com

Oxy Shiled Steel With Laser Cutting Used For Decoration And Sculpture

Oxy shield steel (corten steel/weathering steel)is a weather resistant high strength steel,which can overcome the disadvantage of corrosion and rust by alloying the unique treatment way.In the beginning,the exposed corten steel will occur rust just like common steel,but before long one protect film (corrosion layer) is formed on the surface by effect of alloy element,it would restrain rust continue develop.Meanwhile,the protect layer emerge rust red color making full of retro romantic feelings.The raw and earthy patina that develops on the surface of Corten Steel creates a desirable product for many commercial and residential clients,and lower price range when compared to powder coated aluminum.

Specification:

■Standard:

Cortan-A,S355J0WP,Fe510 C1K1,E 36WA3,WR50A;

SPA-H,B480NQ,Q345GNH And 09CuPCrNi-A

■Base Material: Hot Rolled Steel

■Thickness:1~300mm

■Width:300~4050mm

■Length:300~15000mm

Special Dimension Can Be Customized As Detailed Requirement

■Patterns: Many Patterns Can Be Chosen (Or Customized)

■Packing: Export Seaworthy Packaging Or As Customer’s Requirement

.Features As Following:

1)Weather Resistant: 4~8 Times Than Common Steel

2)Excellent Paintability And Machinability

3)High Strength And Corrosion Resistance

Due to the outstanding feature,corten steel can be widely used in many fields,such as sculpture decoration,curtain wall,boiler plant,marine ship,engineering machinery and etc.

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.

The Reflectivity of Mirror Aluminum Coil

The reflectivity of domestic mirror aluminum coil is normally over 80%, but the reflectivity of imported Mirror aluminum coil is highly to over 95%. Consequently, the imported aluminum price is much higher than domestic aluminum coil. The so called imported mirror aluminum coil is named as Anodized mirror aluminum coil, and domestic mirror aluminum coil is commonly laminated mirror aluminum coil and polished mirror aluminum coil. If customer has no strict requirements on the reflectivity, we suggest you use our laminated or polished aluminum coil with low price and production cost. Oppositely, using anodized mirror aluminum coil to get a high reflective effect.

Changzhou Dingang Metal Material Co., Ltd supply high quality domestic mirror aluminum sheet, mirror aluminum coil with PVC film. We can provide cutting, filming and slitting process ability, etc. Our mirror aluminum plate’s reflectivity is approx 86% which can preferable replace users’ production cost.

Mirror aluminum plate is applied to various areas in life from lightings decoration to roof’s solar energy reflectivity, and to furniture, etc. In addition to these obvious applications, the mirror aluminum plate has other aspects applications which bring us a lot of convenience. It includes home appliance’s face cover, electronic products shell, furniture, kitchen, car interior and exterior decoration, signs, logo, jewelry boxes and other fields. Whether from our life or to our work, the role of mirror aluminum coil (sheet) is quite large.

Changzhou Dingang Metal Material Co., Ltd

Website: www.cnchangsong.com

PVDF Color Coated Aluminum Used For Roofing And Wall Material

Today we received our client from Korea sent photos of local construction building that used our color coated aluminum for the building outer wall and roofing.He is very satisfied with our color coating aluminum products quality and place new round order immediately.

Specifications:

Alloy: AA3004

Common Temper Grade: H18,H24 And H26

Standard: GB3880-97And ASTM3004

Thickness: 0.4-1.5mm

Width: 55-1600mm

Color Option: RAL Standard Color Or Customer’s Color Samples

Painting Option: PE (Above 18 Microns) Or PVDF (More Than 25 Microns)

Now let’s see the advantages of color coated aluminum roofing material:

1)Small Density:

The density of aluminum is only about one-third of steel.In the case of same thickness,calculate the final price on square meter basis,they are almost same.

2)Excellent Processability:

Due to moderate structural strength of aluminum,it’s easy for processing and convenient to installation,which can reduce construction cost.

3)Nice Decoration

Use aluminum for external insulation decoration,it have bright overall visual.With the addition of paint coating process,that make architectural appearance much more colorful and lively.

4)Long Period Of Validity

Because of the outstanding corrosion resistance,the period of validity can reach above 25 years under normal conditions.

5)High Recovery

The recovery rate can reach 85%.

We purchase the ordinary aluminum coils from Southwest Aluminum and Chalco Ruimin company,the paint are all purchased from PPG company.

With our strict quality control and professional service,our color coated aluminum alloy coils products earned respects from both consumers and competitors,and widely used in many landmark buildings.

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.

Our main products suppliable at present as following:

Galvanized (Zinc Coating) Steel,Galvalume (Alu-zinc Coating) Steel,Pre-painted (Color Coated) Steel,Mirror (Anodized) Aluminum,Color Coated (Pre-painted) Aluminum,Heat Insulating Anti Corrosice Sheet,Corten Steel With Laser Cut For Decoration and so on.

Should any of items be of interest to you,please let us know.We shall be glad to give you our lowest quotations upon receipt of your detailed requirements.

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.

The Cause of the Color Coated Aluminum Coil Defect

Pre-painted aluminum coil is easy to be leakage coating, needle-like color change and other issues when coating. Pre-painted aluminum coil coating is the most important process in the entire aluminum plate coating production line. Good or bad of coating product quality. Especially the good or bad of the apparent quality, is directly impact on product decoration effect. Therefore, we must first grasp the common defects in the coating process and the defect formation reasons.

The reasons for the defects formation reasons are various. The common reasons are as the following five categories.

1.    Raw Material.

The paint and bare aluminum coil are the most influential factors in the coating process. Due to the different paint batches has color difference, the low coating rate because the less paint fineness and the poor assort of coating and solvent or layered, etc. will directly affect the coating effect and case defects.

The bare aluminum coil is not smooth, uneven PVC film, edge deflection is also a direct impact on product quality and overall use. Therefore, it should be strictly controlled in the raw materials choosing.

2.    Equipment

The coating equipment is required to be smooth and can’t have horizontal and vertical jitter. The coating roller requires fine grinding. All the rollers of the coating machine should be controlled within the permissible range. Otherwise the surface quality of the coating will be seriously affected.

3.    Technology

The coating technology is closely related to the quality of the coating. It requires the ratio of the coating roller, the paint roller, the measuring roller and the substrate relative to the wire speed should be controlled within a certain range. To set a certain degree of viscosity according to the different system and coating product paint thickness to ensure smooth coating and promote the improvement of product quality. Paint curing process and oven control must be controlled as required which shall not be arbitrarily changed. Otherwise, it will seriously affect the color and performance of the pre-painted aluminum coil. 

4.    Environment

The painting room is required to be clear and clean, dustproof, pest-proof, and a certain ventilation performance to ensure the coating surface quality from pollution. At the same time, to change the technology conditions according to temperature changes.

5.    Human factors

The operator’s responsibility, the technical proficiency and the operation normative is the key to a high quality coating effect. Therefore, enterprises should try to strengthen the training of the operator and let the operator master the principles and key points of painting technology, strengthen the responsibility. Operators operate strictly according to the procedures to ensure the high quality pre-painted aluminum products.

Our factory has been adhering to the above five reasons, and carefully completed each order production, so our pre-painted aluminum products are sold to domestic and abroad with high stable quality.

Changzhou Dingang Metal Material Co., Ltd

www.cnchangsong.com

 

S&P Global Platts China Steel Sentiment Softens In August

Higher Prices Expected to Deter New Orders, Mills See Improved Export Market

BEIJING (August 15, 2017) – Chinese steel market sentiment remained robust at the beginning of August but the outlook for steel orders was softer than the month before as mills and traders expected some resistance to higher steel prices, according to the latest S&P Global Platts China Steel Sentiment Index (CSSI), which showed a headline reading of 50.75 out of a possible 100 points.

The August CSSI edged down by 4.56 points from 55.32 in July, but stayed above the 50 point threshold for the second consecutive month.

A reading above 50 indicates expectations of an increase/expansion and a reading below 50 indicates a decrease/contraction. The headline index has only breached 50 points twice in 2017.

The outlook for domestic steel orders softened by 6.73 points from last month to 51.56 in August, but there was a marked improvement in expectations for export orders, which rose by 20.47 from July to 41.50 in August.

The outlook for long steel product prices fell by 4.17 points to 62.50, while expectations for flat steel prices deteriorated by 13.81 points from July to 77.86 in August.

Expectations for crude steel production was down just 3.54 points on the month before, while steel inventories held by traders were generally expected to keep falling.

“Chinese mills and traders are enjoying high prices and strong margins and are therefore generally upbeat about market conditions. The reason the headline index this month isn’t as high as might be expected is because steel prices have risen so much recently that they feel this could deter appetite for purchasing material. That said, most survey participants expected steel prices to remain high in the month ahead,” said Paul Bartholomew, senior managing editor of steel & raw materials for S&P Global Platts.

“Though there has been a marked improvement in the outlook for new export orders in August, it is more a case of ‘things can’t be as bad as last month’. This doesn’t necessarily mean that China’s steel exports are set to surge again,” said Bartholomew.

“The outlook for long and flat steel product prices fell this month but both came off high readings in July. Steel production is expected to remain fairly stable over the next month, and mills will need to decide whether to carry out summer maintenance or keep output high to take advantage of the strong market,” he said.

The CSSI is based on a survey of 75 to 90 China-based market participants including traders and steel mills.

According to S&P Global Platts price assessments, separate to the CSSI, the Platts China export hot rolled coil price averaged $493.1 per metric ton (mt), free on board (FOB) China in July. This was up 11% on $444.3/mt FOB in April.

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.

Our main products suppliable at present as following:

Galvanized (Zinc Coating) Steel,Galvalume (Alu-zinc Coating) Steel,Pre-painted (Color Coated) Steel,Mirror (Anodized) Aluminum,Color Coated (Pre-painted) Aluminum,Heat Insulating Anti Corrosice Sheet,Corten Steel With Laser Cut For Decoration and so on.

Should any of items be of interest to you,please let us know.We shall be glad to give you our lowest quotations upon receipt of your detailed requirements.

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.

Discussion on the Warranty Life of Painted Aluminum Coil

The warranty life of painted aluminum coil has always been a concern matter to us, because since we have chosen a high-priced painted aluminum coil, it would be meaningless of the warranty life is similar as painted steel coil. Especially used as warehouse and building roofing, the weather resistance and warranty life of painted aluminum coil will be more concerned. Today we are talking about the warranty of painted aluminum coil.

PVDF painted aluminum coil: This is a tenacious painted aluminum product. It has long use life to 20-30 years. At present, the common gym, train station waiting room, theater and other large steel construction are using painted aluminum coil as roofing material. PVDF paint can better ensure the use life, so it is the preferred product on warranty life.

PE paint aluminum coil: For the needless of many years using for warehouse roofing and wall panel, PE painted aluminum coil’s warranty life 10- 15 years is the most suitable material because the warehouse needs to be retrofitted. So for the buildings which is no need long use life can choose PE painted aluminum coil. This PE material cost is relatively low.

Painted aluminum coil has long warranty life, light weight, high strength advantages, especially suitable for making roofing and wall panel. The long warranty of painted aluminum is unlike of the coated steel coil which with leakage problems in few years. Customers can decide PE or PVDF paint according to their requirement.

Changzhou Dingang Metal Material Co., Ltd

Website: www.cnchangsong.com