Structural Tees (WT)

WT 4×9 (ASTM A6)

Source: AISC Shapes Database v16.0. Verified fields: A, G, It, Iw, Iy, Iz, Wply, Wplz, Wy, Wz, b, h, iy, iz, tf, tw. Other fields remain unverified unless identified as calculated. Native AISC x-x maps to stored major Iy; native y-y maps to stored minor Iz. Display uses native x-x/y-y.

h = 103 mm · b = 133 mm · tw = 5.84 mm · tf = 8.38 mm · G = 13.3 kg/m

ASTM A6 T-section
Cross-Section Profile — WT 4×9 (to scale)

All dimensions in mm · T-section · G = 13.3 kg/m · ASTM A6

13.3
kg / m
17
A (cm²)
142
Ix (cm⁴)
17.2
Sx (cm³)

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Section Properties

Overall depth h 103 mm
Width b 133 mm
Web thickness tw 5.84 mm
Flange thickness tf 8.38 mm
Area A 17 cm²
Mass per length G 13.3 kg/m
Second moment (x-x) Ix 142 cm⁴
Elastic modulus (x-x) Sx 17.2 cm³
Plastic modulus (x-x) Zx 30.5 cm³
Radius (x-x) rx 2.9 cm
Second moment (y-y) Iy 166 cm⁴
Elastic modulus (y-y) Sy 24.9 cm³
Plastic modulus (y-y) Zy 38.2 cm³
Radius (y-y) ry 3.12 cm
Torsion constant It 3.56 cm⁴
Warping constant Iw 15.1 cm⁶

Using this section record

Read the axis labels before using inertia or modulus: the major and minor axes are not interchangeable. Dimensions are in millimetres; area is in cm², second moments in cm⁴, moduli in cm³ and radii in cm. Convert powers of length consistently when transferring values to a calculation.

A Source line covers only its listed verified fields. Other fields remain subject to verification. A dash is unavailable, never zero. Withheld values must not be inferred from the remaining dimensions. Nominal mass and dimensions are reference values rather than measured tolerances or procurement guarantees. Confirm the exact product, manufacturing route, grade and thickness with the manufacturer. Section properties alone do not establish member resistance: stability, effective length, connections and project design requirements need separate assessment.