E7018 welding electrode/ rod Application:
E7018 welding electrode/ rod is widely in important projects of ships, boilers, high press vessel, bridges, skyscrapers, offshore drilling platforms, nuclear power stations etc. The groove of base metal should be cleared away impurities and the electrode must be baked at a temperature to 400 degree then be held 1-2 hours before welding, 2.5mm one should be done by 350 degree then be held 1 hour.
Carbon Steel Welding Electrode E7018 Specification:
| Chemical Composition |
C |
Mn |
Si |
S |
P |
Ni |
Cr |
Mo |
V |
| Guarantee Value |
-- |
≤1.60 |
≤0.75 |
≤0.035 |
≤0.040 |
≤0.30 |
≤0.20 |
≤0.30 |
≤0.08 |
| General Result |
0.077 |
1.07 |
0.54 |
0.005 |
0.014 |
0.011 |
0.028 |
0.007 |
0.016 |
Welding Electrode E7018
Chemical Composition of Deposited Metal (%)
Welding Electrode E7018
Mechanical Properties of Deposited Metal
| Test Item |
Rm(N/mm2) |
A(%) |
KV2(J)(-30°C) |
| Guarantee Value |
≥490 |
≥22 |
≥27 |
| General Result |
550 |
32 |
156 |
Welding Electrodes E7018
Diffusible Hydrogen Content in Deposited Metal: ≤8.0ml/100g(Glycerine Hydrogen Test)
| X-ray Radiographic Inspection: 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 |
|
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