Aluminum 5180


INTRODUCTION

Aufhauser Aluminum 5180 falls within the Aluminum-Zinc-Magnesium (Al-Zn-Mg) alloy family and responds to post-weld thermal treatments, thus producing very high weld mechanical properties. When AL5180 is used, both the weld and the adjacent heat-affected zone become solution heat-treated by the welding operation. After normal air-cooling, these zones age-harden to high strengths without reheat treament. Strength increases with time at normal ambient temperatures. The rate can be accelerated by a post-weld artificial age thermal treatment. AL5180 also has very low crack sensitivity when compared to other 5XXX series filler alloys. AL5180 gives significantly stronger welds than filler metals 4043, 5356, 5554, or 5556. Listed in the tables below are typical weld strength values for 7005 welded with AL5180.

 

APPLICATIONS

  • Welding filler wire

 

GENERAL INFORMATION

  • Heat treatable
  • Principle alloying elements: Magnesium, Manganese, Zinc, Titanium, Zirconium

 

Chemical Composition
Silicon Iron Copper Beryllium Manganese Magnesium Zinc Titanium Chromium Zirconium Each Total
Other
Aluminum
* * 0.10 0.0008 0.20-0.70 3.5-4.5 1.7-2.8 0.06-0.20 0.10 0.08-0.25 0.05 0.15 Remainder

* Silicon + Iron = 0.35% max.

 

TYPICAL MECHANICAL PROPERTIES OF 7005 WELDED WITH 5180
BASE METAL TEMPER BASE METAL THICKNESS (IN) WELD METHOD POSTWELD TREATMENT TENSILE STRENGTH (KSI) YIELD STRENGTH (KSI) ELONG. % IN 2 IN.
-T6 0.063 GTA Nat. Age 1 mo. 50 37 5.0
-W 0.063 GTA Art. Age tp -T6 52 44 9.5
-T6 0.125 GTA None 39 28 3.5
-T6 0.125 GTA Nat. Age 1 wk. 45 29 5.5
-T6 0.125 GTA Nat. Age 1 mo. 50 35 8.2
-T6 0.125 GTA Nat. Age 3 mo. 51 36 8.5
-T6 0.125 GTA Nat. Age 6 mo. 52 39 8.5
-T6 0.375 GTA Nat. Age 1 mo. 48 37 13.0
-T6 0.375 GTA Nat. Age 3 mo. 49 40 13.5
-T6 0.125 Unwelded Base Metal 54 47 13.2

 

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