Product Main

Specifications

1.Excellent mechanical properties
2.Higher low temperature impact toughness
3.Spatter-free
4.Good slag detachability
1.Direct factory agent
Low Alloy steel electrode  AWS  E7018-G  GB E5018-G
 

Introduction: AWS  E7018-G is a kind of low-alloy steel electrode with iron powder low-hydrogen type coating. DCRP (Direct Current Reversed Polarity). All-position welding. It has lower diffusible hydrogen content and excellent low temperature impact toughness.

Uses: Suitable for welding medium-carbon and low-carbon pressure vessels, such as 16MnDR, etc.

Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Ni
Guarantee Value
≤0.08
0.8~1.3
≤0.50
≤0.030
≤0.030
1.20~2.00
 

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
REl /Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥490
≥390
≥22
≥53(-40°C)
General Result
500~600
400~490
24~32
100~170
 

Diffusible Hydrogen Content in Deposited Metal: ≤4.0ml/100g(Glycerine Hydrogen Test)

X-ray Radiographic Inspection: Degree 1

Reference Current (DC+)
Electrode Diameter(mm)
φ3.2
φ4.0
φ5.0
Welding Current (A)
90~120
120~180
160~210
 

Instructions:
1.The electrodes must be baked under about 350°C 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.

Welding Positions:
H OH HF F VU