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OK Autrod 18.22

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Continuous solid wire suitable for welding of aluminium alloys with more than 3 % Mg, e.g. AlMg4.5Mn, AlMg5Mn and AlMg5Cr, where high tensile strength is required. Can also be used for materials of type AlMgSiCu and AlSi1MgMn and weldable AlZnMg-alloys, like AlZn4.5Mg1. The welding wire has small additions of Zr which increases the finegrained structure of weld deposit and makes it less sensitive to hot cracking during welding.

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Typical Charpy V-Notch Properties

As Welded
Impact Value 19 ft-lb
Impact Value 26 J
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationTensile Strength Yield Strength
As Welded25 %330 MPa (48 ksi)160 MPa (23 ksi)

Recommended Welding Parameters

Current 140-260 A
Voltage 20-29 V
Wire Diameter 0.047 in.
Wire Diameter 1.2 mm

Classifications

2

Consumable Characteristics

Alloy Type AlMgMn
Shielding Gas I1, I2, I3 (EN ISO 14175)

Typical Weld Metal Analysis %

Typical Wire Composition %
Al Cu Mg Mn Si Ti Zr
92.93 % 0.03 % 5.8 % 0.8 % 0.06 % 0.03 % 0.1 %
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