说明：ER5554是含少量钛的铝镁合金焊丝，具有较好的耐蚀性及抗热裂性能，强度高。
Description:ER5556 is aluminum magnesium alloy welding wire with a small amount of titanium. It has good corrosion resistance, thermal cracking resistance and high strength.
用途：是铝镁合金氩弧焊及氧-乙炔焊的基本填充金属，在铝锌镁合金的焊接及铝镁铸件的补焊上也被采用。
Application: It is the most basic filler metal for aluminum magnesium alloy argon arc welding and oxyacetylene welding.
焊丝化学成分Welding wire chemical composition (%)
Si
Fe
Cu
Mn
Mg
Cr
Zn
Ti
Be
Al
≤
0.25
≤
0.40
≤
0.10
0.50
～
1.0
2.4
～
3.0
0.05～0.20
≤0.25
0.05～0.20
≤
0.0003
余量
注：其他元素单个值≤0.03%、其他元素合计≤0.15%。
Remarks: Each other element≤0.03%、Total other elements≤0.15%。
熔敷金属力学性能一例 Mechanical properties of deposited metal
屈服强度
Yield strength
ReL (N/mm2)
抗拉强度
Tensile strength
Rm (N/mm2)
延伸率
Elongation
A (%)
保护气体
Shielding gas
165
263
23
100%Ar