J556FeXG Pipe Welding Electrode

J556FeXG Pipe Welding Electrode

J556FeXG
GB：E5518-G
AWS：E8018-G
Current：Suitable for filling welding and cosmetic welding on medium-carbon steel and low-alloy steel pipes with corresponding strength grades, and also used for downward fillet welding and downward butt groove welding on structural steel with the same strength gr

J556FeXG

According with GB E5518-G
Corresponding with AWS E8018-G


Introduction: J556FeXG is a kind of iron powder electrode with low-hydrogen potassium type coating specially used for pipelines. The characteristics are that in downward welding, the slags do not fall off, the arc is stable and has a little spray force, and it has better slag detachability, regular ripples, higher deposition efficiency, excellent mechanical properties and excellent crack-resistance. AC/DC. It will be more effective when using DCRP (Direct Current Reversed Polarity) in welding.


Uses: Suitable for filling welding and cosmetic welding on medium-carbon steel and low-alloy steel pipes with corresponding strength grades, and also used for downward fillet welding and downward butt groove welding on structural steel with the same strength grades.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Guarantee Value
≤0.12
≥1.00
≤0.7
≤0.035
≤0.040

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥540
≥440
≥17
≥27(-30℃)

Diffusible Hydrogen Content in Deposited Metal: ≤6.0ml/100g(Glycerine Hydrogen Test)

X-ray Radiographic Inspection: ⅠDegree

Reference Current (AC, DC+)
Electrode Diameter(mm)
φ3.2
φ4.0
Welding Current (A)
80~130
110~160

Instructions:
1.The electrodes must be baked under 350-400℃ for an hour before welding, and used as soon as baking is completed.
2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding.
3.When welding, short arc must be used, and it is suitable to manipulate the electrodes directly downwards or with a little downward crescent weaving.

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