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Welding Electrode E7018

AWS:E7018
GB:E5018
Type of current:AC、DC+
Description:High efficiency iron powder low hydrogen type electrode which is suitable for welding key structure of medium and thick plate.The deposition efficiency can be raised.

Alkaline carbon steel electrode

Unit Trademark     GB AWS

Specification(mm)

Description

Alkalinity carbon steel electrode

E5018

E7018

 

φ2.5×300

φ3.2×350

φ4.0×400

φ5.0×400



High efficiency iron powder low hydrogen type electrode which is suitable for welding key structure of medium and thick plate.The deposition efficiency can be raised.


 

Chemical Composition of Deposited Metal(%)


 

C Mn Si S P
≤0.12 ≤1.60 ≤0.75 ≤0.035 ≤0.040

Mechanical Properties of Deposited Metal

Tensile strength

Бb(Mpa)

Yield strength

Бs(Mpa
Elongation
δ5(%)

Impact  work

AKV   J(℃)

≥490 ≥410 ≥22 ≥27(-30℃)
Hydrogen diffuse of deposited metal:≤8.0ml/100g (glyceric methord)


X -ray radiographic  inspection:I grade

Reference  current

Diameter(mm) φ2.5 φ3.2 φ4.0 φ5.0
Welding current(A) 60~100 100~140 140~210 180~230


Notes :

1. Electrodes 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.

3.  Short arc operation is required when welding. Narrow welding track is proper.

4. Electrode is as positive pole when operation on  DC .

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