MK·ER55-G
Published：2009/12/17
Standard:GB ER55-G AWS ER80S-G
Characteristics:MK ER55-G is copper coated gas shielded welding wire for low alloy high strength steel with strength grade of 550-600 MPa. Due to the enough quantity of element Mn、Si、Cu、Cr、Ni etc in this welding wire, the weld has good atmospheric corrosion resistance.
Application:With Ar-rich mixed gas shielded, it is widely applied to the welding of steel plate with strength grade of 550MPa, especially suitable to the welding of the railway locomotives and containers.
Chemical composition(%)
|
C |
Mn |
Si |
S |
P |
Cu |
Ni |
Cr |
|
≤0.10 |
1.10-1.60 |
≤0.60 |
≤0.020 |
≤0.025 |
≤0.50 |
0.20-0.60 |
0.20-0.60 |
Typical mechanical properties of deposited metal:
|
Rm(MPa) |
Rp0.2(MPa) |
A(%) |
Akv(-40℃)(J) |
Shielded gas |
|
620 |
520 |
26 |
98 |
Ar+20%CO2 |
Diameter and current: (DC＋)
|
Diameter(mm) |
ф0.8 |
ф1.0 |
ф1.2 |
ф1.6 |
|
Current(A) |
50-150 |
50-220 |
80-350 |
120-450 |
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