EB2 Chrome Moly SAW (Submerged Arc Welding) wire is a copper-coated, low-alloy filler metal (AWS Class EB2) with about 1.25% Chromium (Cr) and 0.5% Molybdenum (Mo), designed for welding high-strength, creep-resistant steels used in power plants, refineries, and pressure vessels, offering good high-temperature strength and corrosion resistance for welding materials like A387 Gr 11 & 12, providing excellent weld quality with appropriate flux.
Key Characteristics:
Composition: Contains ~1.25% Chromium and ~0.5% Molybdenum for enhanced high-temperature properties and creep resistance.
Type: Low Alloy Solid Wire.
Coating: Copper-coated for better electrical conductivity and feedability.
Welding Process: Used specifically for Submerged Arc Welding (SAW).
Applications: Ideal for welding pipes, tubes, boilers, and pressure vessels made from matching Cr-Mo steels (e.g., ASTM A387 Grade 11 & 12, A182 F11 & F12).
Benefits: Provides good creep resistance, high-temperature strength, and smooth, spatter-free welds when used with suitable flux.
Identification: Often referred to as "515" or listed under AWS Specification A5.23.
How it Works (with Flux): In SAW, this wire is continuously fed into the weld zone, submerged under a protective granular flux (which can be agglomerated or fused), preventing atmospheric contamination and producing high-quality welds. The flux plays a crucial role in determining the final weld metal's mechanical properties.
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