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MK8018B20001560E0 - Exocor E8018-B2 1/8" Chrome-Moly Stick Electrode

Packaging: 10lb tube
$18.00/lb

Package Price:

$180.00/10lb tube

Usually ships within 3-5 business days

OVERVIEW

Premium Chrome-Moly Welding Electrodes for High-Temperature Applications

The Exocor E8018-B2 1/8" Electrode is a high-performance stick electrode designed specifically for the welding of low alloy steels containing 1.25% Chromium and 0.50% Molybdenum. This specific alloy composition is engineered to provide exceptional creep resistance and high tensile strength in environments subjected to elevated temperatures and high pressures. It is the preferred choice for industrial fabrication involving materials such as ASTM A335 Grade P11 and A387 Grade 11, commonly found in power generation and petrochemical sectors.

Manufactured with a basic, low-hydrogen coating, this electrode significantly reduces the risk of hydrogen-induced cracking, a critical factor when welding alloyed steels. The coating is moisture-resistant, though proper storage and handling practices—such as using rod ovens—are recommended to maintain its low-hydrogen status. The Exocor E8018-B2 delivers X-ray quality welds, ensuring that critical joints in pressure vessels and piping systems meet stringent code requirements.

At Josef Gas, we understand the rigorous demands of industrial maintenance and fabrication. This electrode offers stable arc characteristics and can be used in all positions, providing versatility for on-site repairs and complex pipe assemblies. Whether you are welding boiler tubes, heat exchangers, or high-pressure steam pipes, the Exocor E8018-B2 ensures a durable, defect-free bond that stands up to the harshest service conditions.

Key Technical Considerations:

  • Base Metal Matching: Specifically formulated for 1-1/4 Cr - 1/2 Mo steels.
  • Heat Treatment: Welds typically require preheat and post-weld heat treatment (PWHT) to relieve stresses and achieve optimal mechanical properties.
  • Storage: Keep in a dry environment; re-bake according to manufacturer specifications if exposed to moisture.
Additional Information
Packaging Description:10lb tube
Weld Process:Electrode, Electrode (electrode)
Grade:E8018B2 (e8018b2), E8018B2
Packaging:10lb tube
Brand:Exocor
Diameter:3.2mm, 3.2mm (3-2mm)
Position:All Position (all-position), n/a
Polarity:DC+, DC+ / AC (dc-ac)
AWS Classification:E8018-B2
Alloy Type:Chrome-Moly Steel (1.25% Cr, 0.5% Mo)
Coating Type:Basic Low Hydrogen
Tensile Strength:80,000 psi (min)
Welding Current:AC, DCEP
----- new values below ----
AWS Classification:E8018-B2
Alloy Type:Chrome-Moly Steel (1.25% Cr, 0.5% Mo)
Coating Type:Basic Low Hydrogen
Tensile Strength:80,000 psi (min)
Rod Length:14 inches
Welding Current:DCEP, AC
brand:Exocor (exocor)
diameter:3.2mm (3-2mm)
grade:E8018B2 (e8018b2)
weld-process:Electrode (electrode)
position:All Position (all-position)
polarity:DC+ / AC (dc-ac)

INCLUDED

  • Exocor E8018-B2 1/8" Stick Electrodes (14" Length)
  • Protective Packaging

APPLICATIONS

  • Power Generation (Steam Piping)
  • Petrochemical Refineries
  • Pressure Vessels and Boilers
  • Heat Exchangers
  • High-Temperature Service Piping (P11/P12 Materials)
  • Chemical Processing Equipment

FAQ

E8018-B2 electrodes are primarily used for welding low alloy steels containing 1.25% Chromium and 0.5% Molybdenum, such as ASTM A335 P11 piping, used in high-temperature service.

Yes, as a low-hydrogen electrode, E8018-B2 should be stored in a holding oven at 250°F-300°F after opening to prevent moisture pickup, which can cause porosity and cracking.

Direct Current Electrode Positive (DCEP) is preferred for the smoothest arc and best penetration, although it can also be operated on AC.

The '80' in E8018-B2 indicates a minimum tensile strength of 80,000 psi (approx. 550 MPa) in the as-welded or stress-relieved condition.

It is generally not recommended for dissimilar metals unless the application specifically calls for a Cr-Mo filler. It is designed to match the chemistry of Cr-Mo base metals.

Yes, welding Chrome-Moly steels typically requires preheating (often 300°F-400°F) and interpass temperature control to prevent cracking and hard zones.

E8018-B2 contains 1.25% Cr and 0.5% Mo, while E9018-B3 contains 2.25% Cr and 1% Mo. They are matched to different grades of base metal (P11 vs P22).