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How Deep Should A Weld Penetrate? [Solved]

2-86, section 4.4. 2, stipulates: “No allowance for penetration into the plate surfaces at the root of a fillet weld shall be made when computing the effective throat, except when sectioned test pieces show that the welding procedure gives penetration > 3/32 in. (2.4 mm) beyond the root of the joint.

Tips for Good Welding Penetration - Kevin Caron

From http://www.kevincaron.com - How do you know if you’ve gotten good

ME12b groove weld size depth penetration

… from two sides you don’t say anything about

Weld Penetration Measurement

Weld Penetration