Aluminium Welding /Brazing Alloy 4047

Technical Data Sheet


Chemical Composition Limits
Weight% Al Si Fe Cu Zn Mn Mg Others Others
Alloy 4047 Bal 11.0-13.0 0.60 max 0.30 max 0.20 max 0.15 max 0.10 max 0.05 max each 0.15 max each

Alloy 4047 is an aluminium alloy that contains 12% Silicon, which is used for high silicon alloys and automotive work. Alloy 4047 is typically used where good colour matching to the parent material is important. Alloy 4047 is precision layer-wound for positive uninterrupted feeding. Alloy 4047 is suitable for gas-shielded MIG welding on both semi-automated and fully-automated system.

Aluminium MIG and TIG Welding wire and Rods

Used on

L159, L155, LM2, LM6, LM9, LM20.
Also used for gas brazing applications.
1xxx, 3xxx, 6xxx, series alloys.
2014, 2219, 5005, 5050, 5052, 7005, 7039.
Al-Si and Al-Si-Mg casting and combinations to wrought alloys as listed above.
Typical applications include repair, surfacing and construction of window frames, tubes, furniture, engine blocks and automotive parts.

Cross-Reference of Specifications AMS 4185C Filler Metal, Aluminium Brazing
UNS A94047
BS 2901: 4047 (NG2)
Fed - QQ-B-655
N2 (NG2)
B Al-2
MSRR 9500/31
AlSi-12 (ISO)
EN ISO 18273: S Al 4047A
AWS A5.10.92, R4047
Availability Ex stock MIG spools and TIG rods Spools Dia 1.0mm - 2.0kg, 6.5kg
Spools Dia 1.2mm - 6.5kg
Spools Dia 1.6mm - 6.5kg
Other Spools 0.5kg, 2.5kg and 15kg European manufacture
Other Spools 1 lb, 5 lb and 25 lb American manufacture
Rods 1 kg, 2.5kg, 5kg and 10kg packs European manufacture
1000mm lengths, Flag tagged for trace ability
Rods 5 lb American manufacture
Flag tagged for trace ability
For all stock availability contact Sales.

Weld Properties

Melting range 1068° - 1080°F (Eutectic point)
Density: 2.65 gm/cc

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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.