Tru-Core® MC 90C-D2 is a low alloy steel, composite metal cored electrode for gas shielded arc welding of low alloy, and certain carbon, steels requiring tensile strengths in excess of 90 ksi and good CVN values at temperatures as low as -20°F. This electrode is intended to be used with shielding gas blends of 75- 95% Argon/Balance Carbon Dioxide, and up to 98% Argon/Balance Oxygen (the AWS Classification gas blend). As the core is comprised entirely of metallic powders, this electrode is used within the GMAW process. The MC 90C-D2 can be used in single and multiple pass applications, both in fillets and groove



  • Excellent mechanical properties
  • Nearly slag free welds
  • Flat bead geometry
  • Smooth arc transfer
  • Low fume emissions
  • Excellent feedability
  • Virtually no spatter
  • Wide window of operating parameters
  • Good low-temperature CVN properties
  • Better sidewall fusion than solid electrodes


Tru-Core® MC 90C-D2 is a good choice to weld steels from ¼” thickness up to heavy plates sections, in grades matching the mechanical properties and corrosion resistance of high strength, low alloy pressure vessel steels, such as ASTM A302, and manganese molybdenum castings such as ASTM A49 , A291, and A735.

Some typical applications are as follows:

  • Pressure vessels |Pressure piping systems
  • Repair of manganese-molybdenum castings
  • Crane frames and components


Typical Application Sheilding Gas Blends:|

  • 75-95% Argon/Balance CO2
  • 95-98% Argon/Balance CO2
  • Flow Rate: 40-55 cfh


All position welding is possible when using the correct shielding gas blends, welding process and welding parameters.


Welding wire should be stored in a dry, enclosed environment and in its originally-sealed package.


Go to Product Page in our Welding Wire Catalog (printable)

Go to Technical Tables in our Welding Wire Catalog (printable)


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