A stringer bead width is typically 2 to 3 times the electrode diameter.

A stringer bead width is typically 2 to 3 times the electrode diameter.

• A. True
• B. False
• C. Sometimes True
• D. Always False

Answer: (A)

Bead width in a stringer bead is shaped by electrode diameter and heat input. For a single, straight pass, the bead width is typically about 2 to 3 times the electrode diameter. This guideline helps balance filler metal deposition with controlled heat so the weld fills the joint properly without excessive reinforcement or lack of fusion. If you run wider than about three times the diameter, you’re likely applying too much heat or depositing too much metal in one pass, which can cause burn-through or distortion. If the bead is much narrower than twice the diameter, you may have underfill and insufficient fusion. Travel speed, current, polarity, and torch angle all influence the width, but the 2–3x rule serves as a useful default for a stringer bead.

Bead width in a stringer bead is shaped by electrode diameter and heat input. For a single, straight pass, the bead width is typically about 2 to 3 times the electrode diameter. This guideline helps balance filler metal deposition with controlled heat so the weld fills the joint properly without excessive reinforcement or lack of fusion.

If you run wider than about three times the diameter, you’re likely applying too much heat or depositing too much metal in one pass, which can cause burn-through or distortion. If the bead is much narrower than twice the diameter, you may have underfill and insufficient fusion. Travel speed, current, polarity, and torch angle all influence the width, but the 2–3x rule serves as a useful default for a stringer bead.