Automotive Industry

Silicon Bronze Welding

Standard Alloy Chemical Composition(%) Melting Range
Solidus Liquidus
AWS A5.7
BS EN14640
ERCuSi-A
CuSi3Mn1
Cu:Bal. Fe:0.5 Mn:0.5-1.5 Pb:Max0.02 Si:2.8-4.0 Sn:1.0 Zn:1.0 Other:0.5 910℃ 1025℃

Aluminium and aluminium alloy welding wire

Standard Alloy Chemical Composition(%)
AWS A5-10
EN ISO18273-S
ER4043
AlSi5
Al:Bal. Si:4.50-5.50 Fe:0.80 Cu:0.30 Mn:0.05 Mg:0.05 Zn:0.10 Ti:0.20 Other:0.15
AWS A5-10
EN ISO18273-S
ER4047
AlSi12
Al:Bal. Si:11.0-13.0 Fe:0.60 Cu:0.30 Mn:0.15 Mg:0.10 Zn:0.20 Ti:0.15 Other:0.15

Aluminium flux cored brazing wire

Type Composition Brazing

temp ℃

Flux Proportion Wire Diameter Note
Alloy Flux (wt%) (mm)
BD812 Al88Si12(4047) K Cs Al F 595~625 low:10-15%
Standard type:15-25%
Φ1.2~Φ2.4 Aluminum to aluminum brazing

Aluminium to copper flux cored brazing wire

Type Composition Brazing

temp℃

Flux Proportion Wire Diameter Note
Alloy Flux (wt%) (mm)
BD802 1# ZnAl alloy  Cs Al F 4 420-480 10-20% Φ1.6~Φ2.4 Copper to Aluminum brazing
BD822 2# ZnAl alloy 420-480
BD815 3# ZnAl Alloy 420-480
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