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ATOM ARC 8018-B6L

Atom Arc 8018-B6L deposits a low carbon 5% Cr - 0.5% Mo weld metal. This electrode is excellent for the petrochemical and petroleum industries where resistance to hydrogen attack is required.

Features

Atom Arc 8018-B6L deposits a low carbon 5% Cr, 0.5% Mo weld metal. It is designed for welding ASTM A200-T5, A335-P5, A387-Gr5 and similar steels. Applications tend to be in the petrochemical and petroleum industries, especially where hydrogen attack accelerates metal failure. Additionally, these steels are used in pressure vessels and piping for high temperature service.

Atom Arc 8018-B6L
  • Industry
  • Power Generation
  • Process
  • Pipeline
  • Welding Process
  • SMAW (Stick)

Classifications

  • Classifications/Approvals

    • MILITARY MIL-22200/8; MIL-E-502-15
    • SFA/AWS A5.5; E8018-B6LH4R

Properties

Typical Properties
Stress Relieved 1 hr. @ 1375ºF (746ºC)  
Yield Strength 95 ksi, 655 MPa
Tensile Strength 81 ksi, 558 MPa
Elongation 25 %
Typical Undiluted Weld Metal Analysis  
C 0.04 %
Mn 0.6 %
Si 0.6 %
P 0.015 %
S 0.011 %
Cr 5.4 %
Mo 0.6 %

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

The recommended preheat temperature for 5CrMo steels is 400-500°F depending on thickness. Post weld heat treatment is generally required.