Tru-Core® FC 81T-Ni1M is a low alloy steel electrode for gas shielded, flux cored arc welding of those carbon and low alloy steels requiring a minimum tensile strength of 80 ksi and good CVN values at temperatures of -40°F and lower. This electrode is intended for welding in all positions, both single and multiple pass welds, using a shielding gas blend of 75- 80% Argon/Carbon Dioxide. The arc transfer is a smooth, small droplet mode, with very little spatter residue. The slag freezes quickly enough to facilitate welding in all positions, but provides the type of flow and wetting properties to allow good bead geometry and tie in, even in horizontal fillets.
Excellent mechanical properties
Fast-freezing slag system
Good bead geometry
Smooth arc transfer
Good low-temperature CVN properties
Virtually no spatter
Better sidewall fusion than solid electrodes
Tru-Core® FC 81T-Ni1M is well suited to those applications where any combination of all position welding, good welder appeal, a minimum tensile strength of 80 ksi, good CVN values at lower temperatures, and the ability to weld on plate thicknesses from ¼” to heavy plate sections is required.
Some examples are:
- Offshore oil structures
- Subsea components of oil and gas systems
- Earthmoving equipment
- Mining machinery
- Power generation equipment
TYPICAL APPLICATION SHIELDING GAS BLENDS
75-80% 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.
Click the link below to view/print technical tables including Typical Mechanical Properties, Typical Weld Composition, Typical Diffusible Hydrogen and Approximate Welding Parameters.
PRODUCED ATStillwater, Oklahoma
SPECIFICATIONSAWS A5.29: E81T1-Ni1M H8
ASME SFA 5.29: E81T1-Ni1M H8