Atom Arc 7018-Mo

ESAB

Atom Arc 7018-Mo

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Atom Arc 7018-Mo electrodes contain 1/2% Mo as alloy addition. They are recommended for welding low-alloy, high tensile steels of 50 ksi (345 MPa) minimum yield strength and also 1/2% Molybdenum steels and pipes. They are widely employed in the fabrication and erection of boilers, pressure piping and tubing and other pressure vessel applications.

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Industries

  • Civil Construction
  • Industrial and General Fabrication
  • Mobile Equipment
  • Power Generation

Welding Process

  • SMAW/MMA (Stick)

Typical Charpy V-Notch Properties

Impact Value Testing Temperature
stress relieved
203 J (150 ft-lb) 20 hr 620 degC (1150 degF) 15 degC (60 degF)
146 J (108 ft-lb) 8 hr 620 degC (1150 degF) 0 degC (30 degF)
94 J (69 ft-lb) 8 hr 620 degC (1150 degF) -30 degC (-20 degF)
183 J (135 ft-lb) 13 hr 620 degC (1150 degF) 10 degC (10 degF)

Typical Tensile Properties

Condition Stress Relieved Stress Relieved Stress Relieved As Welded
Tensile Strength 607 MPa (88 ksi) 587 MPa (85 ksi) 607 MPa (88 ksi) 600 MPa (87 ksi)
Yield Strength 524 MPa (76 ksi) 504 MPa (73 ksi) 518 MPa (75 ksi) 530 MPa (77 ksi)
Elongation 28 % 29 % 29 % 27 %
Testing Time 8 hr 20 hr 1 hr
Testing Temperature 620 degC (1150 degF) 620 degC (1150 degF) 620 degC (1150 degF)

Deposition Data

Current Deposition Rate Diameter Deposition Efficiency (%) Optimal Amps
130-220 A 1.7 kg/h (3.8 lb/h) 4.0 mm (5/32 in.) 73.5 % 170 A
90-160 A 1.2 kg/h (2.6 lb/h) 3.2 mm (1/8 in.) 71.6 % 120 A
200-300 A 2.4 kg/h (5.4 lb/h) 4.8 mm (3/16 in.) 74.6 % 250 A
200-300 A 2.2 kg/h (4.9 lb/h) 4.8 mm (3/16 in.) 76.4 % 200 A
70-100 A 0.8 kg/h (1.7 lb/h) 2.4 mm (3/32 in.) 66.3 % 90 A
90-160 A 1.2 kg/h (2.7 lb/h) 3.2 mm (1/8 in.) 70.9 % 140 A
250-350 A 3.3 kg/h (7.2 lb/h) 5.6 mm (7/32 in.) 74 % 300 A
250-350 A 2.9 kg/h (6.5 lb/h) 5.6 mm (7/32 in.) 75 % 250 A
130-220 A 1.4 kg/h (3.1 lb/h) 4.0 mm (5/32 in.) 75 % 140 A

Classifications

Classifications ASME SFA 5.5 :
AWS A5.5 : E7018-A1 H4R

Approvals

Grade AWS A5.5: E7018-A1
Society ABS
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Coating Type Low-hydrogen iron powder
0
Welding Current AC or DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Mn Mo P S Si
0.04 % 0.80 % 0.55 % 0.012 % 0.01 % 0.40 %
0.012 % 0.40 %
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Part Numbers and Accessories

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Part Numbers : Atom Arc 7018-Mo
AA 7018-MO 1/4X18X50#HS 255021412 FIND A DISTRIBUTOR
AA 7018-MO 1/8X14X10#HS 255021826 FIND A DISTRIBUTOR
AA 7018-MO 1/8X14X50#HS 255021818 FIND A DISTRIBUTOR
AA 7018-MO 3/16X14X50#HS 255023111 FIND A DISTRIBUTOR
AA 7018-MO 3/32X14X10#HS 255023327 FIND A DISTRIBUTOR
AA 7018-MO 3/32X14X50#HS 255023319 FIND A DISTRIBUTOR
AA 7018-MO 5/32X14X10#HS 255025322 FIND A DISTRIBUTOR
AA 7018-MO 5/32X14X50#HS 255025314 FIND A DISTRIBUTOR
AA 7018-MO 7/32X18X50#HS 255027310 FIND A DISTRIBUTOR
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