Tru-Core® MC 70C is a metal cored, gas shielded electrode intended for gas metal arc welding with shielding gas blends of 75-95% Argon, balance Carbon Dioxide. Designed to weld carbon steels and certain low alloy steels, in applications demanding higher productivity and requiring a minimum of 70,000 psi tensile strength. The core is comprised entirely of metallic powders, allowing the electrode to perform like a solid wire. MC 70C is recommended for use in single and multiple pass applications.


Excellent mechanical properties

Flat bead geometry

Excellent feedability

Easy slag removal

Smooth arc transfer

High deposition/automation friendly


Tru-Core® MC 70C is an excellent choice for welding most carbon steels, such as ASTM A 36, A 285, A 515 Grade 70 and A 516 Grade 70, as well as certain low alloy steels. It is ideal for gauges ranging from heavier sheet metal to thick plate, where the weld is positioned for either manual, automatic or robotic applications.

Some examples are:

  • Hot Water Heaters
  • Shipbuilding
  • Structural Steel
  • Agricultural Equipment
  • Railcar Construction
  • Truck Frames


75-95% Argon/Balance CO2

Flow Rate: 35-45 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)


Stillwater, Oklahoma


AWS A5.18, ASME SFA 5.18 E70C-3M H4, E70C-6M H4;
AWS A5.36 E70T15-M12P2-CS1 H4, E70T15-M20P2-CS1 H4, E70T15-M21P2-CS1 H4;
Cert by CWB to CSA W48-18 E490T15-M12A3-CS1-H4