In the E71T-1 electrode designation, what does the T represent?

In the E71T-1 electrode designation, what does the T represent?

• A. Electrode construction (T= tubular)
• B. Temperature rating
• C. Thickness limit
• D. Transport code

Answer: (A)

The T in the designation indicates tubular construction. That means the electrode is a flux-cored wire inside a hollow tube, i.e., a tubular electrode, rather than a solid wire. This tubular, flux-cored design provides shielding and alloying elements from the flux as you weld, which is characteristic of FCAW electrodes. The other parts of the code convey strength and position/shielding details, but the T itself flags the tubular construction.

The T in the designation indicates tubular construction. That means the electrode is a flux-cored wire inside a hollow tube, i.e., a tubular electrode, rather than a solid wire. This tubular, flux-cored design provides shielding and alloying elements from the flux as you weld, which is characteristic of FCAW electrodes. The other parts of the code convey strength and position/shielding details, but the T itself flags the tubular construction.