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Henan Signi Aluminum Co.,Ltd

Addresss:No.89 Science Avenue, National HI-Tech Industry Development Zone, Zhengzhou, Henan

Postal Code:450001.

Tel: +86-371- 55689814, +86-371-55686476

Mob: +86 13673369503

Sales manager: Alex Lu

Fax:+86-371-55686475

E-mail: inquiry@signialuminium.com

Aluminum Steel Bimetal

Aluminum clad steel bimetal Aluminum bimetal -----Structure Transition Joints Cladding is a process in which a minimum of two different types of metal are joined to form an inseperable “laminated” material. These Clad Materials are produced through our Cold Rolled Bonding process, which we...... Send InquiryChat Now

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Aluminum clad steel bimetal
 Aluminum bimetal -----Structure Transition Joints

 Cladding is a process in which a minimum of two different types of metal are joined to form an inseperable “laminated” material. These Clad Materials are produced through  our Cold Rolled Bonding process, which we developed more than 50 years ago.

 Signi aluminum’s structure transition joints aluminum bimetal are commonly used to make a welded and maintance free connection between alloyed aluminum components and steel structures  in the shipbuilding, railway and automotive industry.
 img07052(001).jpg  
 The major shortcomings of rivets and bolts are that they require holes to be drilled, need special insulators  and require regular assembly inspection. Any removal of material, such as drilling holes, also weakens the metal.
 Aluminum bimetal--Structure transtion joints are an indisputably better option because they eliminate  crevices and have shown to limit crevice corrosion. Aluminum bimetal - Transition joints require no extra hardware, which allows engineers to stream-lin, their designs and shave off extra weight..

Types

Temper

Features

CA100

No transition layer

higher cost performance

CA101

Thin transition layer

High bonding strength

CA200

Thick transition layer

Ultra-high bond strength


 

CA 100

CA 101

CA 200

Interface bonding rate

100%

100%

100%

Tension strength

>85 Mpa

>110 Mpa

> 210 Mpa

Shearing strength

>65 Mpa

>85 Mpa

> 137 Mpa

Highest temperature

315℃×30 min

400 ℃ × 30 min

500 ℃ × 30 min


 Aluminium alloy clad steel for brazing type exchanger
 The material mark and specification of cladding strip

Material mark

Specification /mm

Mark

Non-clad
     Layer

Double side
     Cladding
     Aluminium
     Layer

Base mark

Cladding
     Strip thickness

Cladding
     Strip width

Cladding
     Layer width

Non-alu.
     Edge width

4A60/08A1

4A60

__

08A1

0.21—2.0

50—500

0.05—0.1

2.0—4.0

Cladding Aluminum
     4A33/08A1

___

Cladding aluminum
     4A33

1.5—5.5

60--300

0.3—1.5

0

Cladding aluminum
     7A16/08A1

Cladding aluminum
     7A16

Cladding aluminum
     8A60/08A1

Cladding aluminum
     8A60

Cladding aluminum
     8A61/08A1

Cladding aluminum
     8A61

Cladding aluminum
     8A62/08A1

Cladding aluminum
     8A62

 
 Chemical composition

Alloy
     Sign

Chemical Composition

Si

Sn

Fe

Ni

Cu

Mn

Mg

Zn

Pb

Ti

Single

Sum

Al

4A33

10.0-
     12.0

<=0.2

<=0.3

<=0.1

0.7-
     1.3

<=0.1

__

__

__

<=0.1

<=
     0.05

<=
     0.15

Remind

4A60

0.8—
     1.0

__

0.2—
     0.35

__

<=
     0.05

<=
     0.03

<=
     0.3

<=
     0.05

__

<=
     0.03

<=
     0.05

<=
     0.15

7A16

1.0—
     2.0

<=0.2

<=0.6

<=0.2

0.8-
     1.2

<=0.3

<=
     0.6

4.4-
     5.5

0.7-
     1.3

<=0.2

<=
     0.05

<=
     0.15

8A60

<=
     0.7

5.5—
     7.0

<=0.7

<=1.3

0.7—
     1.3

<=0.7

__

__

__

<=0.2

<=
     0.05

<=
     0.15

8A61

__

10.0-
     14.0

1.8-
     3.5

<=0.1

0.4-
     1.3

<=
     0.35

__

__

1.0-
     2.5

<=0.1

<=
     0.05

<=
     0.15

8A62

<=
     0.7

17.5-
     22.5

<=0.7

<=0.1

0.7-
     1.3

<=
     0.7

__

__

__

<=0.2

<=
     0.05

<=
     0.15

 


 Cladding layer thickness bias 、base body surface roughness

Cladding layer sign

Cladding layer thickness
     / mm

Cladding layer thickness
     Bias / mm

Base body surface
     Roughness R/um

4A60

0.05—0.100

+- 0.004

__

Cladding aluminium
     4A33  7A16  8A60
     8A61  8A62

0.4 – 0.8

+- 0.07

<= 0.63

>0.8—1.0

+-0.08

>1.00

+-0.09


 Cladding Strip no edge width bias

Cladding Strip Width

Non-edge width bias

50.00—100.00

+- 0.30

>100.00—300.00

+- 0.50

>300.00—500.00

+- 1.00


 Burr 、Stagger floor 、Tower-shaped

Cladding Strip Width

Burr

Stagger floor

Tower floor

0.200—0.500

<=0.06

<=1.0

<=10

>0.500—1.000

<=0.10

<=2.0

<=15

>1.000—2.000

<=0.15

<=2.5

<=20

>2.000-- 5.500

<=0.20

<=3.0

<=25


 Side Curvature

Cldding Strip Width / mm

Side Bending degree / mm

50.00—100.00

3.0

>100.00—300.00

2.0

>300.00—500.00

1.5


 Surface  Hardness

Product Sign

Aluminium hardness in Cladding Layer / HB

Base body Hardness
     / HBW

A grade

B grade

Cladding Alu. 4A33 /08A1

45—60

---

160----220

Cladding Alu.7A16 / 08A1

45---70

70---100

Cladding Alu.8A60 /08A1

35---45

---

Cladding Alu.8A61 /08A1

35---45

---

Cladding Alu.8A62 /08A1

30---40

---



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    Henan Signi Aluminum Co.,Ltd

    Addresss:No.89 Science Avenue, National HI-Tech Industry Development Zone, Zhengzhou, Henan

    Postal Code:450001.

    Tel: +86-371- 55689814, +86-371-55686476

    Mob: +86 13673369503

    Sales manager: Alex Lu

    Fax:+86-371-55686475

    E-mail: inquiry@signialuminium.com

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