Atom Arc 8018-SR

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Atom Arc 8018-SR

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Atom Arc 8018-SR is an all-position low hydrogen electrode. The moisture resistance and welder appeal is similar to other Atom Arc electrodes. Atom Arc 8018-SR was developed to maintain 80 ksi (552 MPa) after 50 hours stress relieving.

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Industries

  • Power Generation

Welding Process

  • SMAW/MMA (Stick)

Typical Charpy V-Notch Properties

Impact Value Testing Temperature
stress relieved
146 J (108 ft-lb) 8 hr 621 degC (1150 degF) -46 degC (-50 degF)
144 J (106 ft-lb) 20 hr 621 degC (1150 degF) -46 degC (-50 degF)
155 J (114 ft-lb) 50 hr 621 degC (1150 degF) -46 degC (-50 degF)
217 J (160 ft-lb) 8 hr 621 degC (1150 degF) 16 degC (60 degF)
233 J (172 ft-lb) 20 hr 621 degC (1150 degF) 16 degC (60 degF)
224 J (165 ft-lb) 50 hr 621 degC (1150 degF) 16 degC (60 degF)

Typical Tensile Properties

Condition Stress Relieved Stress Relieved Stress Relieved
Reduction in Area 75 % 78 % 76 %
Tensile Strength 587 MPa (85 ksi) 562 MPa (82 ksi) 580 MPa (85 ksi)
Yield Strength 490 MPa (71 ksi) 470 MPa (69 ksi) 495 MPa (72 ksi)
Elongation 29 % 32 % 30 %
Testing Time 8 hr 50 hr 20 hr
Testing Temperature 621 degC (1150 degF) 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 1.1 kg/h (3.1 lb/h) 4.0 mm (5/32 in.) 75 % 140 A

Classifications

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

Consumable Characteristics

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

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Cu Mn Mo Nb Ni P Si V
0.075 % 0.10 % 0.114 % 1.12 % 0.26 % 0.003 % 0.90 % 0.01 % 0.34 % 0.009 %
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Part Numbers and Accessories

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Part Numbers : Atom Arc 8018-SR
255041840 FIND A DISTRIBUTOR
255041832 FIND A DISTRIBUTOR
525041836 FIND A DISTRIBUTOR
255043135 FIND A DISTRIBUTOR
255043143 FIND A DISTRIBUTOR
525045332 FIND A DISTRIBUTOR
525043139 FIND A DISTRIBUTOR
525043154 FIND A DISTRIBUTOR
255041857 FIND A DISTRIBUTOR
255045338 FIND A DISTRIBUTOR
255043150 FIND A DISTRIBUTOR

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