Weld Penetration

By - Date 11-06-2000 16:34

Our company has a situation where we have a company doing welding for us on 16 gage round tubing butt welded to 16 gage square tubing. The print calls out a 1/8" fillet weld .8" long. The print does not call out the amount of penetration required. Is there an implied amount penetration that this weld should have or should the mimimum amount of penetration be called out on the print? What would be the correct way to call out penetration? We are currently seeing many of the weld without any penetration.

Thanks

Jim

By CHGuilford (****)

Date 11-06-2000 17:23

The root of a fillet weld is the intersection of the two joining parts. A fillet weld must penetrate to the root as a minimum but it doesn't have to go beyond that. Many times, the weld will be deeper than the root but that is considered incidental and usually is not evaluated. If you should want penetration to go past the root then you could specify a groove weld of some type, either partial or complete penetration, with a fillet weld "reinforcement".
Hope this helps,
CHGuilford

By ADK

Date 11-14-2000 13:27

There is a great article in "THE AMERICAN WELDER", page 13 regarding Metal Cored Electrode Basis. We produce seamless flux cored wires and based on your base metal and the mechanical values requirements I would be pleased to provide you with a sample for evaluation in your process. Please provide more info about your steel, joint config. etc.