Atom Arc 7018-SR

ESAB

Atom Arc 7018-SR

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Atom Arc 7018-SR is an all-position low hydrogen electrode. The moisture resistance and welder appeal is similar to other Atom Arc electrodes. Atom Arc 7018-SR was developed to maintain 70 ksi (483 MPa) tensile strength after 16 hours stress relieving.

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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
180 J (133 ft-lb) 8 hr 621 degC (1150 degF) -29 degC (-20 degF)
250 J (185 ft-lb) 16 hr 621 degC (1150 degF) -29 degC (-20 degF)

Typical Tensile Properties

Condition Stress Relieved Stress Relieved As Welded
Reduction in Area 77 % 76 % 76 %
Tensile Strength 510 MPa (74 ksi) 520 MPa (76 ksi) 575 MPa (83 ksi)
Yield Strength 405 MPa (59 ksi) 420 MPa (61 ksi) 475 MPa (68 ksi)
Elongation 35 % 35 % 32 %
Testing Time 16 hr 8 hr
Testing Temperature 621 degC (1150 degF) 621 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
130-220 A 1.4 kg/h (3.1 lb/h) 4.0 mm (5/32 in.) 75 % 140 A

Classifications

Classifications ASME SFA 5.1 :
AWS A5.1 : E7018 H4R

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
0.06 % 1.30 % 0.10 % 0.014 % 0.014 % 0.30 %
0.10 % 0.30 %
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Part Numbers and Accessories

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Part Numbers : Atom Arc 7018-SR
255325060 FIND A DISTRIBUTOR
255325011 FIND A DISTRIBUTOR
255325003 FIND A DISTRIBUTOR
255325029 FIND A DISTRIBUTOR

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