AISC Weld Limit Stress

\emptyset R_{n} = \emptyset \cdot β \cdot F_{nw} \cdot k_{ds}

\emptyset R_{n} = 0.75 \cdot 0.912 \cdot (0.60 \cdot 70 ksi) \cdot 1.0

\emptyset R_{n} = 28.7 ksi

φ	LRFD resistance factor
β	Reduction factor = 1.2 - 0.002(27.0-in/0.1875-in) ≤ 1.0
F_nw	Nominal stress of the weld metal, ksi
k_ds	Directional strength increase factor (1.0 for longitudinal direction)

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