Fillet weld leg length

[ek712]

Is there any requirement for the size of fillet weld leg length in accoeding to standard or code?

 

[GRoberts]

AWS D1.1 has minimum fillet weld sizes based on the thickness of material. It also specifies that if a fillet weld size is not called out on the drawings, that the minimum fillet weld size applies.

 

[ek712]

Thanks GRoberts.

How about the maximum leg length? i have read some post and the information from the internet talking about that , but i still can't be sure that the maximum value of that.

 

[HgTX]

For AISC and AWS codes, there is a maximum weld size in lap joints. If the material is >= 20 mm (or 3/4"), the fillet weld must be at least 2 mm (or 1/16") smaller than the material thickness. This is for inspection purposes--if the weld comes all the way up to the edge of the material, it can melt away the edge so that what looks like a fillet weld that is the same size as the full material thickness will actually be undersized.

Hg

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