Type
Aluminium silicon alloy for welding cast aluminum parts, also suitable as brazing alloy with suitable flux.
classification
AWS
A 5.10: ER4047A
EN ISO
18273: S Al 4047A (AlSi12(A))
W.Nr.
3.2585
Applications

Aluminium alloy for welding and brazing. This material is generally used for brazing aluminium sheets, for extrusions and castings. (After anodizing the welding will be of a different color)

Type
Aluminium silicon alloy for welding cast aluminum parts, also suitable as brazing alloy with suitable flux.
Applications

Aluminium alloy for welding and brazing. This material is generally used for brazing aluminium sheets, for extrusions and castings. (After anodizing the welding will be of a different color)

Properties

AlSi12 was originally developed as a brazing alloy to take advantage of its low melting point and narrow freezing range. In addition, it has a higher silicon content than AlSi5, which provides increased fluidity and reduced shrinkage. Hot cracking is significantly reduced when using AlSi12 as a filler alloy. The alloy may be used in applications at sustained elevated temperatures. Non-heat treatable. Thicker sections should be preheated (150°C) prior to welding.

Classification
AWS
A 5.10: ER4047A
EN ISO
18273: S Al 4047A (AlSi12(A))
F-nr
23
W.Nr.
3.2585
Suitable for

Cast aluminium up to 12% Si:

G-AlSi10Mg, G-AlSi11, G-AlSi12 (Cu), G-AlSi7Mg, G-AlSi6Cu4, G-AlSi9Mg, G-AlSi9Cu3, 4145, 

3.2581, 3.2583, 3.2381, 3.2383, 3.2373, 3.2163, 3.2371, 3.2151, B 413.0, 361.0, 359.0, 356.0, 319.0, 

Approvals
CE
Welding positions
PA
PB
PC
PD
PE
PF
PG
Redrying
Not required
Gas acc. EN ISO 14175
I1, I3
Analysis
Si Mn Cr Ti Fe Cu Zn Al Mg Zr Be Ga+V Si+Fe V
12 0.1 0.1 0.3 0.1 0.1 Rem.
Mechanical Properties
Heat
Treatment		 RP0,2
(MPa)		 Rm
(MPa)		 A5
(%)		 Hardness
As Welded 95 190 6 HRc
Product sheet
declaration of performance
SDS
Product sheet
Ask quotation
SDS