Question

question 89 of 100 · multiple choice

which number(s) in e7018 welding rod indicate the tensile strength of the finished weld?

a 18
b 8
c e7
d 70

Explanation:

Analyze the E7018 electrode classification system

In the AWS (American Welding Society) classification system for carbon steel electrodes, the designation "E7018" is broken down as follows:

• E: Electrode
• 70: Indicates the minimum tensile strength of the deposited weld metal in thousands of pounds per square inch (psi). Thus, 70 represents \(70,000\text{ psi}\).
• 1: Indicates the welding position (1 means all positions).
• 8: Indicates the type of coating and current.

Identify the numbers representing tensile strength

The first two digits "70" indicate the minimum tensile strength of the finished weld.

Match with the given options

• A: 18
• B: 8
• C: E7
• D: 70

The correct option is D.

Answer:

• (A) 18
• (B) 8
• (C) E7
• (D) 70 (Correct answer)