Basic Carbon steelelectrodes
E7018 FeAccording with GB E5018
Introduction: E7018 is a kind of carbon steel electrode with iron powder low-hydrogen
potassium type coating. AC/DC. The deposition efficiency can be improved due
to the iron powder in the coating. lt has stable arc, fewer spatters, good slarg
detachability and excellent welding performance.The deposited metal has excellent
mechanical properties.All-position welding.
Applications: Used for welding carbon steel and low-alloy steel structures, such as
16Mn,etc.
Chemical Composition of Deposited Metal(%)
| Chemical Compositior |
c |
Mn |
Si |
S |
P |
Ni |
Mo |
Cr |
V |
| Guarantee Value |
≤0.12
|
≤1.60 |
≤0.75 |
≤0.035 |
≤0.040 |
≤0.30 |
≤0.30 |
≤0.20 |
≤0.08 |
Mechanical Properties of Deposited Metal
Test Item
|
Rm(MPa)
|
ReL(Mpa)
|
A(%)
|
KV2(J)
|
Guarantee Value
|
≥490
|
≥400 |
≥22 |
≥27(-30°C) |
General Result
|
520~580 |
≥410 |
24~30
|
80~200
|
Diffusible Hydrogen Content in Deposited Metal: ≤80ml/100g (Glycerine Hydrogen Test)
X-ray Radiographic Inspection: I Degree
Reference Current (AC,DC+)
| Electrode Diameter(mm) |
Φ2.5 |
Φ3.2 |
Φ4.0 |
Φ5.0 |
| Welding Current(A) |
60~100
|
80~140
|
110~210
|
160~230
|
Instructions:
1.The electrodes must be baked under 300~350C for an hour before welding
and used as soon as baking is completed.
2.The stains on the weld, such as rust, oil stains, moisture, etc., must be cleared
away before welding.
3.When welding, short arc must be used and stringer bead is suitable
Packing details:
In carton of 20kgs/net, consisting of 8 boxes x2.5kgs for 2.5mm,& 4 boxes
x 5kgs for other sizes.With/Without pallets (Fumigation-free pallets) upon customer's request.
Audited Supplier 
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