China Aluminum Aluminium Steel Bimetal--Structure Transition Joints

Aluminum Aluminium steel bimetal--Structure Transition Joints
Henan Signi aluminium's Aluminum Aluminium steel bimetal--Structure Transition Joints 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.
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 Aluminium steel bimetal--Structure transtion joints are an indisputably better option because they eliminate crevices and have shown to limit crevice corrosion. aluminum clad steel bimetal - Transition joints require no extra hardware, which allows engineers to stream-lin, their designs and shave off extra weight..

TypesTemperFeaturesCA100No transition layerhigher cost performanceCA101Thin transition layerHigh bonding strengthCA200Thick transition layerUltra-high bond strength

CA 100CA 101CA 200Interface bonding rate100%100%100%Tension strength>85 Mpa>110 Mpa> 210 MpaShearing strength>65 Mpa>85 Mpa> 137 MpaHighest temperature315ºCx30 min400 ºC x 30 min500 ºC x 30 min

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

Material markSpecification /mmMarkNon-clad
LayerDouble side
Cladding
Aluminium
Layerbase markCladding
Strip thicknessCladding
Strip widthCladding
Layer widthNon-alu.
Edge width4A60/08A14A60__08A10.21-2.050-5000.05-0.12.0-4.0Cladding Aluminum
4A33/08A1___Cladding aluminum
4A331.5-5.560--3000.3-1.50Cladding aluminum
7A16/08A1Cladding aluminum
7A16Cladding aluminum
8A60/08A1Cladding aluminum
8A60Cladding aluminum
8A61/08A1Cladding aluminum
8A61Cladding aluminum
8A62/08A1Cladding aluminum
8A62

Chemical composition

Alloy
SignChemical CompositionSiSnFeNiCuMnMgZnPbTiSingleSumAl4A3310.0-
12.0<=0.2<=0.3<=0.10.7-
1.3<=0.1______<=0.1<=
0.05<=
0.15Remind4A600.8-
1.0__0.2-
0.35__<=
0.05<=
0.03<=
0.3<=
0.05__<=
0.03<=
0.05<=
0.157A161.0-
2.0<=0.2<=0.6<=0.20.8-
1.2<=0.3<=
0.64.4-
5.50.7-
1.3<=0.2<=
0.05<=
0.158A60<=
0.75.5-
7.0<=0.7<=1.30.7-
1.3<=0.7______<=0.2<=
0.05<=
0.158A61__10.0-
14.01.8-
3.5<=0.10.4-
1.3<=
0.35____1.0-
2.5<=0.1<=
0.05<=
0.158A62<=
0.717.5-
22.5<=0.7<=0.10.7-
1.3<=
0.7______<=0.2<=
0.05<=
0.15

Cladding layer thickness bias ,base body surface roughness

Cladding layer signCladding layer thickness
/ mmCladding layer thickness
Bias / mmbase body surface
Roughness R/um4A600.05-0.100+- 0.004__Cladding aluminium
4A33 7A16 8A60
8A61 8A620.4 - 0.8+- 0.07<= 0.63>0.8-1.0+-0.08>1.00+-0.09

Cladding Strip no edge width bias

Cladding Strip WidthNon-edge width bias50.00-100.00+- 0.30>100.00-300.00+- 0.50>300.00-500.00+- 1.00

Burr ,Stagger floor ,Tower-shaped

Cladding Strip WidthBurrStagger floorTower floor0.200-0.500<=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 / mmSide Bending degree / mm50.00-100.003.0>100.00-300.002.0>300.00-500.001.5

Surface Hardness

Product SignAluminium hardness in Cladding Layer / HBbase body Hardness
/ HBWA gradeB gradeCladding Alu. 4A33 /08A145-60---160----220Cladding Alu.7A16 / 08A145---7070---100Cladding Alu.8A60 /08A135---45---Cladding Alu.8A61 /08A135---45---Cladding Alu.8A62 /08A130---40---