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Fonweld AF408

FONWELD AF 408

Aluminium-silicon alloy filler rod with corrosive flux core, for gas welding

DIN 1732: SG – AL Si 5

AWS/ASME/SFA-5.10:ER 4043

B. S.: NG 21

Applications:

  • Welded joints and surfacing on aluminium and aluminium alloys such as: Al Si 5, Al Mg Si 0.5, Al Mg Si 0.8, Al Mg Si 1. Aluminium and aluminium alloys with less than 2% alloying elements, cast aluminium alloys with up to 7% Si content. Tank Construction, aluminium structures, sheet metal work and vehicle construction.

Characteristics:

  • The combination of filler rod and flux facilitates welding and ensures faultless bonding. The weld metal is free of cracks and porosity. Flux residues must always be washed off.

Source of heat:

  • Oxy-acetylene torch

Flame adjustment:

  • Excess of acetylene

Availability:

  • 2.0 x 820mm
  • 3.0 x 820mm
  • 4.0 x 820mm

Composition, typical values in %:
 

Si Fe Al
4.50-5.50 0.4 Balance


Mechanical and physical properties:
Melting range:                 573 – 625C
Tensile strength:             118 N/mm2
Yield Strength Rp 0.2:      49 N/mm2
Elongation (I = 5 d):        10 – 17%
Electrical conductivity:     21 Sm/mm2

Specifications

SKUFONWELD AF408