Atom Arc 8018-CM

ESAB

Atom Arc 8018-CM

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Atom Arc 8018-CM electrodes contain 1 1/4% Cr and 1/2% Mo as alloy addition. They are used for the welding of such steels as 1/2% Cr - 1/2% Mo, 1% Cr - 1/2% Mo, and 1 1/4% Cr - 1/2% Mo, which are used principally in power piping and boiler work for the fabrication of plates, pipes, tubes, castings, and forgings.

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Industries

  • Pipeline
  • Power Generation
  • Pressure Vessels

Welding Process

  • SMAW/MMA (Stick)

Typical Charpy V-Notch Properties

Impact Value Testing Temperature
stress relieved
108 J (80 ft-lb) 8 hr 607 degC (1125 degF) 0 degC (30 degF)
113 J (83 ft-lb) 8 hr 620 degC (1150 degF) 0 degC (30 degF)
133 J (98 ft-lb) 8 hr 677 degC (1250 degF) 0 degC (30 degF)

Typical Tensile Properties

Condition Stress Relieved Stress Relieved Stress Relieved Stress Relieved As Welded
Tensile Strength 704 MPa (102 ksi) 662 MPa (96 ksi) 642 MPa (93 ksi) 669 MPa (97 ksi) 704 MPa (102 ksi)
Yield Strength 607 MPa (88 ksi) 566 MPa (82 ksi) 621 MPa (90 ksi) 580 MPa (84 ksi) 607 MPa (88 ksi)
Elongation 24 % 26 % 25 % 25 % 24 %
Testing Time 8 hr 8 hr 1 hr 1 hr
Testing Temperature 620 degC (1150 degF) 690 degC (1275 degF) 705 degC (1300 degF) 690 degC (1275 degF)

Deposition Data

Current Deposition Rate Diameter Deposition Efficiency (%) Optimal Amps
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 (2.6 lb/h) 3.2 mm (1/8 in.) 71.6 % 120 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
130-220 A 1.7 kg/h (3.8 lb/h) 4.0 mm (5/32 in.) 73.5 % 170 A
200-300 A 2.2 kg/h (4.9 lb/h) 4.8 mm (3/16 in.) 76.4 % 200 A
200-300 A 2.4 kg/h (5.4 lb/h) 4.8 mm (3/16 in.) 74.6 % 250 A
250-350 A 2.9 kg/h (6.5 lb/h) 5.6 mm (7/32 in.) 75 % 250 A
250-350 A 3.3 kg/h (7.2 lb/h) 5.6 mm (7/32 in.) 74 % 300 A
300-400 A 3.5 kg/h (7.7 lb/h) 6.4 mm (1/4 in.) 78 % 300 A
300-400 A 3.9 kg/h (8.7 lb/h) 6.4 mm (1/4 in.) 77 % 350 A

Classifications

Classifications ASME SFA 5.5 :
AWS A5.5 : E8018-B2 H4R

Approvals

Approvals ABS AWS A5.5: E8018-B2
MIL-E-22200/8 MIL-8018-B2
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 Cr Mn Mo P S Si X-bar
0.06 % 1.30 % 0.80 % 0.57 % 0.011 % 0.008 % 0.50 % < 15 ppm
0.008 %
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Part Numbers and Accessories

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Part Numbers : Atom Arc 8018-CM
AA 8018-CM 1/8X14X10#HS 255051823 FIND A DISTRIBUTOR
AA 8018-CM 1/8X14X50#HS 255051815 FIND A DISTRIBUTOR
AA 8018-CM 3/16X14X50#HS 255053118 FIND A DISTRIBUTOR
AA 8018-CM 3/32X14X10#HS 255053324 FIND A DISTRIBUTOR
AA 8018-CM 3/32X14X50#HS 255053316 FIND A DISTRIBUTOR
AA 8018-CM 5/32X14X50#HS 255055311 FIND A DISTRIBUTOR
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