Table K3.1A: Limits of Applicability of Table K3.1

Connection eccentricity:	-0.55 ≤ e/D ≤ 0.25 for K-connections
Chord wall slenderness:	D/t ≤ 50 for T-, Y-, and K-connections
	D/t ≤ 40 for cross-connections
Branch wall slenderness:	D_b/t_b ≤ 50 for tension and compression branch
	D_b/t_b ≤ 0.05E/F_yb for compression branch
Width ratio:	0.2 ≤ D_b/D ≤ 1.0 for T-, Y-, cross-, and overlapped K-connections
	0.4 ≤ D_b/D ≤ 1.0 for gapped K-connections
Gap:	g ≥ t_b comp + t_b tens for gapped K-connections
Overlap:	25% ≤ Ov ≤ 100% for overlapped K-connections
Branch thickness:	t_b overlapping ≤ t_b overlapped for branches in overlapped K-connections
Material strength:	F_y and F_yb ≤ 52 ksi (360 MPa)
Ductility strength:	F_y/F_u and F_yb/F_ub ≤ 0.8 Note: ASTM A500/A500M Grade C is acceptable.

User Note: The available axial strength for rectangular HSS-to-HSS member connections, $\phi P_{n}$ or $P_{n} / \Omega$ , is obtained from Chapter J and the AISC Steel Construction Manual Part 9.