What is the effective throat thickness dimension of 10mm fillet weld made by shielded metal arc welding and submerged arc welding?

What is the effective throat thickness dimension of 10mm fillet weld made by shielded metal arc welding and submerged arc welding? Correct Answer 7mm, 8.6mm

a) Using shielded metal arc welding process, effective throat thickness = 0.7a = 0.7×10 = 7mm b) Using submerged arc welding (we get better penetration than shielded metal arc welding): a = 10+2.4 = 12.4mm effective throat thickness = 0.7a = 0.7×12.4 = 8.6mm.
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