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SIF Aluminium TIG Filler Rods - 4047A 12% Silicon (ER 4047) - 1.6mm to 5mm Dia.

RO163225 Weldability Sif In Stock Fast Dispatch
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£36.69 ex VAT
£44.03 inc VAT
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  • Aluminium TIG filler rods containing 12% silicon for high silicon alloys
  • Available in multiple diameters with 2.5 kg and 5 kg pack weights
  • Ideal for colour matching, repair, and automotive applications
  • Superior corrosion resistance; not suitable for anodised fabrications
  • Requires argon or argon/helium shielding gas with DC+ current
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4047A Aluminium TIG Rods are specialised aluminium rods containing 12% silicon, making them ideal for high silicon alloys and automotive applications. These rods are particularly chosen for scenarios where colour matching to the parent material is crucial.

With excellent mechanical properties and superior corrosion resistance, they are suitable for silicon-bearing cast aluminium alloys and wrought alloys. However, they are not recommended for fabrications that are intended to be anodised.

Features and Benefits

  • High Silicon Content: Contains 12% silicon, ensuring compatibility with high silicon alloys.
  • Excellent Corrosion Resistance: Offers superior protection against corrosion.
  • Versatile Applications: Suitable for silicon-bearing cast aluminium alloys and wrought alloys.
  • Color Matching: Ideal for situations where color matching to the parent material is essential.

Typical Applications

  • Aluminium Castings: Suitable for all types of aluminium castings.
  • Repair and Surfacing: Ideal for the repair, surfacing, and construction of various items like window frames, tubes, furniture, engine blocks, and automotive parts.
  • Aerospace Sector: Frequently chosen in the aerospace industry.
  • Brazing Alloy: Used as a brazing alloy, especially on thin gauge materials.

Welding Positions

siflumin no16 welding positions

Ensure that the parent metal surface is cleaned and fully degreased prior to welding. Clean joints with a stainless steel brush.

Product Type Tig Rods – Aluminium
Part Number RO161601
Diameter 1.6mm – 5mm
Weight 2.5 KG – 5 KG
Shielding Gas Argon, Argon/Helium
Current DC=+
Si 12%
Al Balance
Melting Point 585°C
Ultimate Tensile Strength 130 N/mm²
Hardness 50 (unit)

Certifications & Standards

BS: 2901 4047A [NG2]. ENISO 1873 S Al 4047A

Brand Weldability Sif
Weight 2.5kg ·
Diameter 3.2mm ·
AWS Classification ER 4047
Material Type Aluminium (ER4xxx/5xxx)
TIG Rod Diameter 1.6 mm, 2.4 mm, 3.2 mm, 5 mm
TIG Rod Weight 1 kg, 2.5 kg
SKU Weight Diameter Stock Status  
RO161625 2 5kg 1 6mm In Stock £56.73 ex VAT £68.08 inc VAT
RO163225 2 5kg 3 2mm In Stock £36.69 ex VAT £44.03 inc VAT
RO165025 5kg 5 mm In Stock £51.41 ex VAT £61.69 inc VAT
RO162425 2 5kg 2 4mm In Stock £42.21 ex VAT £50.65 inc VAT

Product Information

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Technical Data Sheet

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A carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.

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SIF Aluminium TIG Filler Rods - 4047A 12% Silicon (ER 4047) - 1.6mm to 5mm Dia. SIF Aluminium TIG Filler Rods - 4047A 12% Silicon (ER 4047) - 1.6mm to 5mm Dia.
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