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ATOM ARC 8018-B3L

Atom Arc 8018-B3L is an all-position low hydrogen electrode designed for welding the nominal 2% Cr - 1% Mo steels. The low carbon analysis of the weld metal contributes to its crack resistance, and the careful blend of Cr/Mo provide the properties needed for weldments subjected to elevated temperature service.

Features

Atom Arc 8018-B3L electrodes contain 2.25% Cr and 1% Mo alloy additions with low carbon content. The electrode is designed for welding 2.25% Cr - 1% Mo steels. The rod operates with a very stable arc and minimal spatter. The low carbon analysis of the weld metal contributes to its crack resistance. The addition of Cr and Mo provide for the excellent creep and stress rupture properties of weldments subjected to elevated temperature service.

Atom Arc 8018-B3L
  • Industry
  • Process
  • Mobile Machinery
  • Pipeline
  • Power Generation
  • Welding Process
  • SMAW (Stick)

Classifications

  • Classifications/Approvals

    • SFA/AWS A5.5; E8018-B3LH4R

Properties

Typical Properties
Stress Relieved 1 hr. @ 1275ºF (691ºC)  
Yield Strength 78 ksi, 538 MPa
Tensile Strength 93 ksi, 641 MPa
Elongation in 2" 25 %
Typical Undiluted Weld Metal Analysis  
C 0.04 %
Mn 0.7 %
Si 0.4 %
P 0.017 %
S 0.015 %
Cr 2.3 %
Mo 1.1 %

SAW

Accessories

Depositions

Deposition Table
Diameter Optimal Amperage Range Amperage Deposition Rate Efficiency
3/32 in, 2.4 mm 90 A 70 - 100 1.7 lbs./hr., 0.8 kg./hr. 66.3 %
1/8 in, 3.2 mm 120 A 90 - 160 2.6 lbs./hr., 1.2 kg./hr. 71.6 %
140 A 90 - 160 2.7 lbs./hr., 1.2 kg./hr. 70.9 %
5/32 in, 4.0 mm 140 A 130 - 220 3.1 lbs./hr., 1.4 kg./hr. 75 %
170 A 130 - 220 3.8 lbs./hr., 1.7 kg./hr. 73.5 %
3/16 in, 4.8 mm 200 A 200 - 300 4.9 lbs./hr., 2.2 kg./hr. 76.4 %
250 A 200 - 300 5.4 lbs./hr., 2.4 kg./hr. 74.6 %
7/32 in, 5.6 mm 250 A 250 - 350 6.5 lbs./hr., 2.9 kg./hr. 75 %
300 A 250 - 350 7.2 lbs./hr., 3.3 kg./hr. 74 %
1/4 in, 6.4 mm 300 A 300 - 400 7.7 lbs./hr., 3.5 kg./hr. 78 %
350 A 300 - 400 8.7 lbs./hr., 3.9 kg./hr. 77 %

Extra Info

Preheat should be used on hardenable steels to prevent the formation of a hard heat-affected zone. Preheat may also be required in welding heavy sections.