Low Alloy Steel Welding Electrode
J556Fe
GB/T E5518-G
AWS E8018-G
Description: J556fe is a low alloy steel electrode with iron powder and low hydrogen coating. Both AC and DC can be used, and can be welded in all positions.
Application: Used for welding medium carbon steel and low alloy steel structures such as Q390.
Chemical composition of weld metal(%):
C |
Mn |
Si |
S |
P |
≤0.12 |
≥1.00 |
≤0.80 |
≤0.035 |
≤0.035 |
Mechanical properties of weld metal:
Test item |
Tensile strength Mpa |
Yield strength Mpa |
Elongation % |
Impact value (J) -40℃ |
Guaranteed |
≥540 |
≥440 |
≥17 |
≥27 |
Diffusion hydrogen content of deposited metal: ≤10.0mL/100g (mercury or gas chromatography method)
X-ray inspection: I grade
Recommended current:
(mm) Rod diameter |
2.5 |
3.2 |
4.0 |
5.0 |
(A) Welding Current |
70 ~ 110 |
100 ~ 140 |
140 ~ 170 |
190 ~ 240 |
Notice:
1. The electrode must be baked for 1 hour at 350℃ before welding operation;
2. It is essential to clean up rusty, oil scale, water, and impurities on welding parts before welding;
3. Use short arc operation when welding. The narrow welding track is proper.