Flare Bevel Groove Calculator

Calculate flare bevel groove effective throat and weld size for round bar and HSS sections per AWS D1.1

Input Parameters

Results

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Effective Throat
in
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Max Fillet Leg Size
in
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Weld Cross-Section Area
in²
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Weld Volume
in³
Note: Flare bevel/V-grooves are used for round bars, pipes, and HSS corners. The effective throat depends on the bar radius and whether the weld is ground flush or left as-welded.

Reference

AWS D1.1 Table 2.1 Flare Groove Effective Throat: Flare Bevel Groove: 5/16 R (flush ground), 5/8 R (as welded) Flare V-Groove: 5/16 R (flush ground), 5/8 R (as welded) R = radius of bar or HSS corner Effective throat cannot exceed plate thickness