Single and multiple-pass welding using recommended fluxes, non-alloyed and fine-grain steels, general fabrication, structural components, heavy equipment components, railcar frames, wheel fabrication, storage tanks, boilers, pressure vessels, ship panels, pipe double jointing, wind towers

• General fabrication

• Structural and bridge fabrication

• Heavy equipment
• Storage vessels

• Pressure vessels

Main Application

RE-DRYING

Welding Positions:

TYPICAL WELD DEPOSIT CHEMICAL COMPOSITION*

Classification:
AWS A5.17: EM12K

EN ISO 14171: S2Si

Description

Submerged Arc Solid Wire Carbon Steel

Category

SDX S2Si-EM12K is a copper-coated carbon-steel solid wire for submerged arc welding. SDX S2Si-EM12K is a versatile, general purpose product suitable for joining a wide range of non-alloyed steels with a wide variety of flux(es). ** In an effort to best serve the packaging needs and requirements of our customers globally, this product features region-exclusive part numbers. To obtain the complete list of part numbers available in your region, e-mail us at subarc@itw-welding.com, contact your regional ITW Welding office, or contact Hobart Brothers customer service (North America) 

FEATURES

Not recommended

Industries

General fabrication, heavy equipment, railcar, shipbuilding, structural & bridge fabrication, power generation, oil & gas, offshore

RECOMMENDED FLUXES

●Copper-coated wire
●Moderate manganese and silicon levels
●Suitable for use with a wide variety of Hobart fluxes

WIRE TYPE

Copper-coated solid wire

CURRENT

 HA-495, HN-590, SWX 120, SWX 150

STANDARD DIAMETERS

Direct Current Electrode Positive (DCEP), Direct Current Electrode Negative (DCEN), Alternating Current (AC)

5/64” (2.0 mm), 3/32” (2.4 mm), 1/8” (3.2 mm), 5/32” (4.0 mm)

STORAGE

Product should be stored in a dry, enclosed environment, and in its original intact packaging

AWS CLASSIFICATIONS

TYPICAL WIRE CHEMICAL COMPOSITION*

TYPICAL MECHANICAL PROPERTIES*

TYPICAL CHARPY V-NOTCH IMPACT VALUES*

TYPICAL OPERATING PARAMETERS*

Maintaining a proper welding procedure - including pre-heat and interpass temperatures - may be critical depending
on the type and thickness of steel being welded.
Parameters are provided for informational purposes only. All values are approximate. The optimal voltage may vary (typically
±2 volts) depending on the choice of flux, material thickness, joint design, and other variables specific to the application.
Likewise, actual deposition rate may vary depending on choice of flux and contact tip to work distance.

STANDARD PACKAGING

BENEFITS

●Offers optimal consistency of electrode feeding and electrical  transfer
●Provide improved resistance to porosity, improved mechanical properties, and increased travel speeds
●Provides versatility in application and procedure development

CONFORMANCES AND APPROVALS

EN ISO CLASSIFICATIONS