タイトルまたは説明

~1. Aluminum alloy number              
No. Layer  Alloy No.    Cladding ratio    Cladding Ratio tolerance   
1.1 Layer 1  ***4,***5,***4,***3,***2,etc.    4%**0% (single cladding)    ±2%   
1.2 Layer 2  ***4,***5,***4,***3,***2,etc.    4%**5% (both sides cladding)    ±2%   
1.3 Core layer  AA***3 or custom    -    -   
2. Product size and tolerance              
No. Specification    Size     Tolerance    
2.1 Length (mm)    -     -    
2.2 Width (mm)    ******0     min ±0.*2,max ±1    
2.3 Thickness (mm)    0.***0.8     min ±0.**5,max ±0.*4    
3. Chemical composition for some typical alloys              
No. "Internal
Alloy Number" AA number Chemical Composition (%)           
   Si Fe Cu Mn Mg Zn Ti Zr Bi Others  Al
            Each Total 
3.1 ***0 ***0 0.*5 0.*5 0.*5 0.*3 0.*3 0.*5 0.*3   0.*3  *9.6
3.2 ***0 ***0 0.2 0.*5 0.*4 0.*3 0.*3 0.*4 0.*3   0.*3  *9.7
3.3 ***0 ***0 0.*5  0.***0.2 0.*5   0.1   0.*5 0.*5 RE
3.4 ***3 ***3 0.6 0.7 0.***0.2 **1.5 0.*5 0.1    0.*5 0.*5 RE
3.5 ***5 ***5 0.6 0.7 0.3 1.**1.5 0.**0.6 0.*5  Cr 0.1  0.*5 0.*5 RE
3.6 ***4 ***4 9.***0.5 0.8 0.*5 0.1 1.**2.0 0.2    0.*5 0.*5 RE
3.7 ***5 ***5 9.***1.0 0.8 0.3 0.*5 0.*5 0.1    0.*5 0.*5 RE
3.8 ***7 ***7 *1.***3.0 0.8 0.3 0.*5 0.*5 0.2    0.*5 0.*5 RE
3.9 ***4 ***4 9.***0.5 0.8 0.*5 0.1 1.**2.0 0.2   0.***0.2 0.*5 0.*5 RE
3.*0 ***3 ***3 6.**8.2 0.8 0.*5 0.1 0.*5 0.2    0.*5 0.*5 RE
3.*1 ***3A ***3A 6.**8.2 0.6 0.1 0.1 0.*2 0.1    0.*5 0.*5 RE
3.*2 ***0 ***0 0.**0.6 0.**0.3 0.1 0.1 0.***0.6 0.*5 0.1 Cr 0.*5  0.*5 0.*5 RE
3.*3 ***1 ***1 0.**0.8 0.7 0.***0.4 0.*5 0.**1.2 0.*5 0.*5 Cr 0.***0.*5  0.*5 0.5 RE
3.*4 ***3 ***3 0.**0.6 0.*5 0.1 0.1 0.***0.9 0.1 0.1 Cr 0.1  0.*5 0.*5 RE
3.*5 6A*2 6A*2 0.**1.2 0.5 0.**0.6 0.**0.*5 0.***0.9 0.2 0.*5   0.*5 0.*5 RE
3.*6 ***2 ***2 0.7 0.1 0.1 0.1 0.1 0.**1.3    0.*5 0.*5 RE
3.*7 ***1 ***1 0.**0.9 0.**1.0 0.1 0.2 0.*5 0.1 0.*8 Cr 0.*5  0.*5 0.*5 RE
3.*8 ***3*1%Zn ***3*1%Zn 9.***1.0 0.8 0.*5 0.1 0.*5 0.**1.3    0.*5 0.*5 RE
3.*9 ***5*1%Zn ***5*1%Zn 9.***1.0 0.8 0.3 0.*5 0.*5 1.**1.3    0.*5 0.*5 RE
3.*0 4A*3 ***3Mod 8.9 0.6 0.2 0.1 0.***0.2 0.2 0.*5   0.*5 0.*5 RE
4. Mechanical properties for some typical alloys              
No. Alloy number "Thick.
(mm)" Temper "Yield Strength
Rp0.2(Mpa).
Min"  "Tensile Strength
Rm (Mpa)"   "Elongation
(%)
A*0,Min"  Homogenization treatment Typical usage  
4.1 ***3 0.***0.*5 O *5  *****5   8  N Fins  
4.2 ***3 0.***0.*5 O *5  *****5   *0  N Fins  
4.3 ***3 0.***0.3 H*2 *0  ******5   0.5  N Fins  
4.4 ***3 0.***0.*8 H*4 **5  ******5   0.5  N Fins  
4.5 ***3 0.****0.3 H*4 **5  ******0   0.5  N Fins  
4.6 ***3 0.***0.*6 H*6 **0  ******5   0.5  N Fins  
4.7 ***3 0.**0.3 H*4 **5  ******5   6  N Fins  
4.8 *****1 0.***3.0 O *5  *****5   *0  Y Plate  
4.9 *****1 0.***3.0 H*4 **5  ******5   3  Y Plate  
4.*0 *****1 1.**3.0 H*4 **5  ******5   *0  Y Plate  
4.*1 6A*2 0.**4.5 O ≤*5  ≤**0   *0  Y Vacuum plate  
4.*2 ***0 0.**4.5 O ≤*5  ≤**0   *0  Y Vacuum plate  
4.*3 ***3 0.**4.5 O ≤*5  ≤**0   *0  Y Vacuum plate  
4.*4 ***3 0.***3.0 O *5  *****0   8  N Sheet for brazing  
4.*5 ***3 0.***3.0 H*4 **0  ******0   0.5  N Sheet for brazing  
4.*6 ***5 0.***3.0 O *5  *****0   8  N Sheet for brazing  
4.*7 ***5 0.***3.0 H*4 **0  ******0   0.5  N Sheet for brazing  
4.*8 ***4 0.***3.0 O *5  *****0   8  N Sheet for brazing  
4.*9 ***4 0.***3.0 H*4 **0  ******0   0.5  N Sheet for brazing  
4.*0 4A*3 0.***3.0 O *5  *****0   8  N Sheet for brazing  
4.*1 4A*3 0.***3.0 H*4 **0  ******0   0.5  N Sheet for brazing  
4.*2 ***7 0.***3.0 O *5  *****0   8  N Sheet for brazing  
4.*3 ***7 0.***3.0 H*4 **0  ******0   0.5  N Sheet for brazing  
4.*4 ***3 0.***0.*5 H*4 **0  ******5   6  N Fins for air cooler  
4.*5 ***3 0.**0.2 H*4 **5  ******5   1  N Fins  
4.*6 ***3 0.**0.3 O *5  *****5   *0  N Fins  
4.*7 ***3 0.**0.8 H*4 **5  ******5   2  Y Plate  
4.*8 ***3 0.**2.5 H*4 **5  ******5   4  Y Plate  
4.*9 ***3 0.**1.6 O *5  ******5   *0  Y Plate  
4.*0 *****1 0.**1.8 O *5  *****5   *0  Y Band  
4.*1 *****1 0.**4.0 O *5  *****5   *5  Y Plate  
4.*2 ***5 Mod 0.***0.6 H*4 **0  ******5   8  N Long life tube  
4.*3 ***0 0.**4.5 O ≤*5  ≤**0   *0  Y Vacuum plate  
4.*4 ***3 0.**4.5 O ≤*5  ≤**0   *0  Y Vacuum plate  
4.*5 ***5 0.**4.5 O *0  *****0   *0  Y Vacuum plate  
4.*6 ***5 0.**4.5 H*2 **0  ******5   *5  Y Vacuum plate  
4.*7 ***0 0.**0.3 H*4 *0  ******5   3  N Fins for air cooler  
4.*8 6A*2 1.**5.0 O ≤*5  ≤**0   *0  Y/N Plate  
5. Surface finish and other properties              
No. Item   Description          
5.1 Surface finish   a. The material shall be free from pinholes and tearing; b.The material shall be free waves and buckles; c. The slit edges must be free from burrs and shall be straight and parallel.          
5.2 Depth of Curvature   In any length or width of 1 meter of the material,the depth of arc shall not exceed 2 mm.          
6. Packing,Shipping and others              
No. Item   Description          
6.1 Packing   To be packed in wooden boxes with card board and cutting with paper core in-between the coil max package weight ***0 kgs          
6.2 Inner and outer diameter   Inner diameter **0/**0/**0/**0/**0/**0/**0mm can be optional based on product spec. and quantity,max outer diameter shall not exceed ***0mm          
6.3 Rolled core material   Paper,aluminum,iron or none can be optional based on product specification or  requirements          
6.4 Coil orientation   Coil orientation in clockwise direction and eye to sky,anticloclwise can be optional          
6.5 Packing way   Horizontal or vertical packing can be optional based on product specification and transfer safety          
6.6 Marking   Each box to be legibly marked with the name of the manufacturer or supplier, the alloy designation of material,condition,dimensions and weight          
6.7 Shipping tools   Ship goods by van to departune port then by sea to desitination port          
6.8 Quantity variation   ±*0% variation with order quantity shall be acceptable     


      We have been focused on the research and development of aluminum heat exchange materials more than *0 years. We are devoted to finding solutions and creating value for our customers. Cladded aluminum material is suitable for a variety of brazing processes,such as Nocolok brazing and vacuum brazing. It's widely used in engine cooling and air conditioner systems in automotive industry,such as radiator,condenser,evaporator,intercooler,oil cooler and heater. In home electrics industries,such as HVAC heat exchanger,water heater,PTC heating unit; In the industrial field,such as power plant cooling systems,construction machinery and air separation equipment. Our cladded aluminum material highly recommended in the market for its stable mechanical properties,stable cladded percentage and excellent corrosion resistance.
       We have developed lots of new alloys for heat exchangers to meet the different technical requirements of customers.According to our continuous internal research and customer feedbacks,we have developed our series alloys which are more suitable for customers than standard alloys.We have alloys with various properties for different applications such as long life alloy tubes,collapse resistant alloy for fins,high strength aging alloys for plates,etc.
       Besides the materials for brazing, we are also devoted on new aluminum material development for industries like aerospace ,shipbuilding,automotive ,oil & gas,construction,mold industry,etc.

        Metal clad material is a kind of material which combines different metals together with metallurgical bonding at the interface.Clad material greatly improves thermal expansion,strength,fracture toughness,impact toughness,abrasion resistance,electrical properties,magnetic properties and many other performances of single metal material. As a result, this material is widely used in petroleum,chemical,shipbuilding,metallurgy,mining,machinery manufacturing,electricity,water conservancy,trqansportation,environmental protection,pressure vessel manufacturing,food,brewing,pharmaceutical and other industry fields. Aluminum based multi-metal clad material is a clad material which clad aluminum,aluminum alloys with other metals. In theory,aluminum and aluminum alloy can be cladded with most metals.
        Typical applications for aluminum based multi-metal clad material
        Aluminum clad steell material
        The cladding of special steel and aluminum alloy combines the strength of steel and the excellent heat transfer performance of aluminum alloy, and makes brazing between steel and aluminum fins possible, which brings great changes to the design of the large cooling system. So this material is largely used in single-row type air-cooling condensers (ACC) for power station which is highly recommended by our government every year. The ACC system could save billions of tons of water for the whole country.
        Bushing Materials
        Babbitt (high tin alloy)-Steel clad material is excellent self-lubricated material, and is the important component of sliding bearing, which is necessary in the power system of cars,ships and machines.
        Aluminum clad stainless steel material
        The combination of stainless steel and aluminum alloy offers stainless steel better heat transfer performance and greatly reduces the material weight,at the same time,the corrosion resistance and strength is still good.This kind of material is a good material form manufacturing energy-saving cookers,and can dramatically reduce the weight of the vehicles when used for auto parts.
        Aluminum Clad copper material
        Copper is the best heat transfer and electric conductive material, and aluminum is second only to it. So the combination of the two can maintain good electrical conductivity and thermal conductivity meanwhile reducing weight and cost significantly.