In the E71T-1 electrode code, what does the 7 represent?

In the E71T-1 electrode code, what does the 7 represent?

• A. Minimum tensile strength (x10,000)
• B. Electrical conductivity
• C. Manufacturing lot number
• D. Weld angle rating

Answer: (A)

The number you see signals the weld metal’s minimum tensile strength. In this coding, the leading digit after the E represents strength in ksi, with the value shown as a multiple of 10,000 psi. A 7 means 70 ksi, which is 70,000 psi (7 × 10,000 psi). So the 7 represents the minimum tensile strength of the electrode’s weld metal.

The number you see signals the weld metal’s minimum tensile strength. In this coding, the leading digit after the E represents strength in ksi, with the value shown as a multiple of 10,000 psi. A 7 means 70 ksi, which is 70,000 psi (7 × 10,000 psi). So the 7 represents the minimum tensile strength of the electrode’s weld metal.