EM13K refers to a specific type of AWS A5.17 submerged arc welding (SAW) wire used for welding carbon and low-alloy steels, known for its appropriate manganese/silicon content, excellent bead formation, and compatibility with low-manganese/low-silicon fluxes, making it ideal for high-speed welding of boilers, bridges, ships, and pressure vessels.
Key Characteristics:
Standard: AWS A5.17 EM13K, equivalent to GT/T 5293 H10MnSi.
Composition: Contains moderate manganese and silicon, offering good deoxidation and resistance to porosity, even over light rust.
Performance: Provides excellent slag detachability, smooth bead appearance, and high welding efficiency.
Applications: Used for general fabrication, structural steel, heavy equipment, storage tanks, pressure vessels, shipbuilding, and bridges, especially for steels with tensile strength up to 420 MPa (60 ksi).
Flux Compatibility: Works well with specific low-manganese, low-silicon fluxes (like SJ101, SJ301).
Coating: Often copper-coated for consistent electrical transfer.
Welding Current: Can be used with AC, DC+, or DC-.
In essence, EM13K is a versatile, high-performance welding wire for demanding structural applications requiring strong, clean welds on mild and low-alloy steels.
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