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ESAB

Atom Arc 8018-NM


Atom Arc 8018-NM electrodes are used for welding quenched and tempered manganese-molybdenum-nickel steels. This electrode was developed for use in pressure vessels for nuclear reactors where long terms stress relief is required.

Where To Buy


Industries

  • Pressure Vessels
  • Nuclear
  • Offshore Oil

Welding Process

  • SMAW/MMA (Stick)

Specifications


Typical Tensile Properties

Condition Elongation Stress Relieved Temperature Stress Relieved Testing Time Tensile Strength Yield Strength
Stress Relieved 29 % 1150 °F 16 hr 88 ksi 78 ksi
As Welded 27 % - - 94.7 ksi 85.2 ksi

Typical Charpy V-Notch Properties

Condition Impact Value Stress Relieved Testing Temp Stress Relieved Testing Time Testing Temperature
Stress Relieved 118 ft-lb 1150 °F 16 hr 0 °F
As Welded 65 ft-lb - - -50 °F
As Welded 111 ft-lb - - 0 °F

Typical Weld Metal Analysis %

weld metal analysis
PMnMoSCSiNi
0.018 %1.07 %0.47 %0.014 %0.043 %0.58 %0.95 %

Classifications: AWS A5.5; E8018-NM H4R; ASME SFA 5.5

Coating Type: Low-hydrogen iron powder
CTOD-Tested: False
Welding Current: AC or DC+
x

Typical Tensile Properties

Condition Elongation Stress Relieved Temperature Stress Relieved Testing Time Tensile Strength Yield Strength
Stress Relieved 29 % 1150 °F 16 hr 88 ksi 78 ksi
As Welded 27 % - - 94.7 ksi 85.2 ksi

Typical Charpy V-Notch Properties

Condition Impact Value Stress Relieved Testing Temp Stress Relieved Testing Time Testing Temperature
Stress Relieved 118 ft-lb 1150 °F 16 hr 0 °F
As Welded 65 ft-lb - - -50 °F
As Welded 111 ft-lb - - 0 °F

Typical Weld Metal Analysis %

weld metal analysis
PMnMoSCSiNi
0.018 %1.07 %0.47 %0.014 %0.043 %0.58 %0.95 %

Classifications: AWS A5.5; E8018-NM H4R; ASME SFA 5.5

Coating Type: Low-hydrogen iron powder
CTOD-Tested: False
Welding Current: AC or DC+
x
x
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