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Welding Electrodes - E7018/E7018-1
E7018 is a low-hydrogen iron powder type electrode that produces high quality x-ray welds. It can be used in all positions on AC or DC reverse polarity welding current. E7018/E7018-1 is recommended for welding medium grade carbon steels where no preheat is used, and on cold rolled steels normally exhibiting excessive porosity when welded with conventional electrodes.
Typical Applications : Low-alloy structurals, low, medium and high carbon steels, offshore rigs and power plants, steel structures, tack welds for tubular wire applications.
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AWS Class : E7018/E7018-1 |
Classification : AWS A5.1/A5.1M:2004 |
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Alloy : E7018 |
ASME SFA A5.1 |
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Welding Position : F, V, OH, H |
Current : AC-DCEP |
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Tensile Strength, kpsi: |
70 min |
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Yield Strength, kpsi: |
58 min |
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Elongation in 2†(%): |
22 min |
Typical Wire Chemistry as per AWS A5.1 (single values are maximum)
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C |
Mn |
Si |
P |
S |
Ni |
Cr |
Mo |
V |
Combined Limit for Mn+Ni+Cr+Mo+V |
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0.15 |
1.60 |
0.75 |
0.035 |
0.035 |
0.30 |
0.20 |
0.30 |
0.08 |
1.75 |
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Typical Welding Parameters |
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Diameter |
Process |
Volt |
Amps (flat) |
Amps (V/OH) |
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in |
(mm) |
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3/32 |
(2.4) |
SMAW |
21-25 |
65-80 |
65-75 |
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1/8 |
(3.2) |
SMAW |
21-25 |
90-110 |
80-95 |
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5/32 |
(4.0) |
SMAW |
21-26 |
135-160 |
120-140 |
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3/16 |
(4.8) |
SMAW |
22-26 |
160-210 |
140-160 |
