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

Reliable Arc Performance for Critical Pipe and Boiler Welding

Welders looking for a dependable rod for Chrome-Moly applications will find the Exocor E8018-B2 1/8" electrode to be a top-tier performer. This rod is built to handle the challenges of welding 1.25% Chromium / 0.5% Molybdenum steels, often referred to as "P11" or "B2" materials. When you are under the hood working on high-pressure steam lines or boiler tubes, you need a consumable that runs smoothly, wets out evenly, and allows for easy slag removal to prevent inclusions.

The E8018-B2 features a heavy, basic coating that facilitates a stable arc on both DC+ (Reverse Polarity) and AC currents. It is designed for all-position welding, making it excellent for vertical-up pipe welding where puddle control is paramount. The slag system is formulated to detach easily, leaving a clean, bright bead profile that requires minimal post-weld cleanup. This is essential for multi-pass welding procedures where inter-pass cleaning efficiency directly impacts productivity.

Beyond its runability, this electrode provides the mechanical assurance needed for critical infrastructure. It deposits weld metal with high resistance to creep and fatigue at service temperatures up to approximately 550°C (1020°F). For welders certified in pressure vessel work, the Exocor E8018-B2 offers the consistency required to pass radiographic testing (RT) and meet AWS A5.5 standards. Ensure you maintain a short arc length to protect the puddle from atmospheric contamination and maximize the low-hydrogen benefits of the coating.

Operational Tips:

• Arc Length: Maintain a short arc to prevent porosity and ensure proper alloy transfer.
• Technique: Use a slight weave for vertical-up progression; stringer beads are recommended for flat and overhead positions to maintain mechanical properties.
• Preparation: Ensure the joint is clean and preheated according to the welding procedure specification (WPS) for Cr-Mo steels.