Chemical composition(%)

Si

Fe

Cu

Mn

Mg

Cr

Zn

Ti

Al

0.40

0.40

≤0.10

0.50-1.00

4.3-5.2

0.05-0.25

0.25

0.15

bal.

Physical performance index

Test temperature

Thensile strength

Yield limit

Elongation

20℃

275Mpa

125Mpa

17%

Properties And Usage

The product is an aluminum alloy welding wire containing 5% of magnesium, and is a general-purpose welding material with a wide application, which is suitable for welding or overlaying the cast-forged aluminum alloy with 5% magnesium, has high strength, good forging property and good corrosion resistance. The product can also provide good color matching for the welding of the anodized aluminum. The invention is applied to the sports equipment, the locomotive carriage, the chemical pressure vessel, the engineering production, the shipbuilding, the aviation and the like of a bicycle, an aluminum scooter and the like.