305x305 TEE-UB — Sizes, Dimensions & Properties

3 sizes in the 305x305 serial size group. All dimensions in mm, section properties in cm units.

DesignationMass (kg/m)Cut Fromh (mm)b (mm)A (cm2)Ixx (cm4)Iyy (cm4)
305x305x119119610x305x238 UB317.9311.415212,4007,920
305x305x9089.5610x305x179 UB310307.11149,0405,700
305x305x7574.6610x305x149 UB306.1304.8957,4104,650

305x305x119 TEE-UB

Designation
305x305x119
Cut From
610x305x238 UB
Mass per Metre
119 kg/m
Depth of Section (h)
317.9 mm
Width of Section (b)
311.4 mm
Web Thickness (tw)
18.4 mm
Flange Thickness (tf)
31.4 mm
Root Radius (r)
16.5 mm
Cross-Sectional Area
152 cm2
Second Moment of Area Ixx
12,400 cm4
Second Moment of Area Iyy
7,920 cm4
Elastic Modulus Zxx (Flange)
1,740 cm3
Elastic Modulus Zxx (Toe)
501 cm3
Elastic Modulus Zyy
509 cm3
Plastic Modulus Sxx
894 cm3
Plastic Modulus Syy
787 cm3
Radius of Gyration rxx
9.03 cm
Radius of Gyration ryy
7.23 cm
Centroid Distance cy
7.11 cm

305x305x90 TEE-UB

Designation
305x305x90
Cut From
610x305x179 UB
Mass per Metre
89.5 kg/m
Depth of Section (h)
310 mm
Width of Section (b)
307.1 mm
Web Thickness (tw)
14.1 mm
Flange Thickness (tf)
23.6 mm
Root Radius (r)
16.5 mm
Cross-Sectional Area
114 cm2
Second Moment of Area Ixx
9,040 cm4
Second Moment of Area Iyy
5,700 cm4
Elastic Modulus Zxx (Flange)
1,350 cm3
Elastic Modulus Zxx (Toe)
372 cm3
Elastic Modulus Zyy
371 cm3
Plastic Modulus Sxx
656 cm3
Plastic Modulus Syy
572 cm3
Radius of Gyration rxx
8.91 cm
Radius of Gyration ryy
7.07 cm
Centroid Distance cy
6.69 cm

305x305x75 TEE-UB

Designation
305x305x75
Cut From
610x305x149 UB
Mass per Metre
74.6 kg/m
Depth of Section (h)
306.1 mm
Width of Section (b)
304.8 mm
Web Thickness (tw)
11.8 mm
Flange Thickness (tf)
19.7 mm
Root Radius (r)
16.5 mm
Cross-Sectional Area
95 cm2
Second Moment of Area Ixx
7,410 cm4
Second Moment of Area Iyy
4,650 cm4
Elastic Modulus Zxx (Flange)
1,150 cm3
Elastic Modulus Zxx (Toe)
307 cm3
Elastic Modulus Zyy
305 cm3
Plastic Modulus Sxx
538 cm3
Plastic Modulus Syy
469 cm3
Radius of Gyration rxx
8.83 cm
Radius of Gyration ryy
7 cm
Centroid Distance cy
6.45 cm

305x305 TEE-UB — Overview

The 305x305 serial size group contains 3 sections, ranging from 74.6 kg/m to 119 kg/m. All sections in this group share the same nominal depth and width but differ in web and flange thickness, which affects the weight and structural capacity.

Section properties are sourced from the Tata Steel Blue Book / SCI P363. For structural design to BS EN 1993-1-1 (Eurocode 3), use these properties with the appropriate partial factors from the UK National Annex.

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Section properties from Tata Steel Blue Book / SCI P363 / BS 4-1:2005.

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