914x305 UB — Sizes, Dimensions & Properties

4 sizes in the 914x305 serial size group. All dimensions in mm, section properties in cm units.

Designation	Mass (kg/m)	h (mm)	b (mm)	tw (mm)	tf (mm)	A (cm2)	Ixx (cm4)	Iyy (cm4)	Zxx (cm3)	Sxx (cm3)	rxx (cm)	ryy (cm)
914x305x289	289.1	926.6	307.7	19.5	32	368	504,000	15,600	10,900	12,600	37	6.51
914x305x253	253.4	918.4	305.5	17.3	27.9	323	436,000	13,300	9,500	10,900	36.8	6.42
914x305x224	224.2	910.4	304.1	15.9	23.9	286	376,000	11,200	8,270	9,530	36.3	6.27
914x305x201	200.9	903	303.3	15.1	20.2	256	325,000	9,420	7,200	8,350	35.7	6.07

914x305x289 UB

Designation: 914x305x289
Serial Size: 914x305
Mass per Metre: 289.1 kg/m
Depth of Section (h): 926.6 mm
Width of Section (b): 307.7 mm
Web Thickness (tw): 19.5 mm
Flange Thickness (tf): 32 mm
Root Radius (r): 19.1 mm
Depth Between Fillets (d): 824.4 mm
Local Buckling Ratio d/tw: 42.3
Local Buckling Ratio cf/tf: 4.81
Second Moment of Area Ixx: 504,000 cm4
Second Moment of Area Iyy: 15,600 cm4
Elastic Modulus Zxx: 10,900 cm3
Elastic Modulus Zyy: 1,010 cm3
Plastic Modulus Sxx: 12,600 cm3
Plastic Modulus Syy: 1,600 cm3
Radius of Gyration rxx: 37 cm
Radius of Gyration ryy: 6.51 cm
Cross-Sectional Area: 368 cm2
Buckling Parameter (u): 0.867
Torsional Index (x): 31.9
Warping Constant (Iw): 31.2 dm6
Torsional Constant (It): 926 cm4
Surface Area per Metre: 3.01 m2/m
Surface Area per Tonne: 10.4 m2/t

914x305x253 UB

Designation: 914x305x253
Serial Size: 914x305
Mass per Metre: 253.4 kg/m
Depth of Section (h): 918.4 mm
Width of Section (b): 305.5 mm
Web Thickness (tw): 17.3 mm
Flange Thickness (tf): 27.9 mm
Root Radius (r): 19.1 mm
Depth Between Fillets (d): 824.4 mm
Local Buckling Ratio d/tw: 47.7
Local Buckling Ratio cf/tf: 5.47
Second Moment of Area Ixx: 436,000 cm4
Second Moment of Area Iyy: 13,300 cm4
Elastic Modulus Zxx: 9,500 cm3
Elastic Modulus Zyy: 871 cm3
Plastic Modulus Sxx: 10,900 cm3
Plastic Modulus Syy: 1,370 cm3
Radius of Gyration rxx: 36.8 cm
Radius of Gyration ryy: 6.42 cm
Cross-Sectional Area: 323 cm2
Buckling Parameter (u): 0.866
Torsional Index (x): 36.2
Warping Constant (Iw): 26.4 dm6
Torsional Constant (It): 626 cm4
Surface Area per Metre: 2.99 m2/m
Surface Area per Tonne: 11.8 m2/t

914x305x224 UB

Designation: 914x305x224
Serial Size: 914x305
Mass per Metre: 224.2 kg/m
Depth of Section (h): 910.4 mm
Width of Section (b): 304.1 mm
Web Thickness (tw): 15.9 mm
Flange Thickness (tf): 23.9 mm
Root Radius (r): 19.1 mm
Depth Between Fillets (d): 824.4 mm
Local Buckling Ratio d/tw: 51.8
Local Buckling Ratio cf/tf: 6.36
Second Moment of Area Ixx: 376,000 cm4
Second Moment of Area Iyy: 11,200 cm4
Elastic Modulus Zxx: 8,270 cm3
Elastic Modulus Zyy: 739 cm3
Plastic Modulus Sxx: 9,530 cm3
Plastic Modulus Syy: 1,160 cm3
Radius of Gyration rxx: 36.3 cm
Radius of Gyration ryy: 6.27 cm
Cross-Sectional Area: 286 cm2
Buckling Parameter (u): 0.861
Torsional Index (x): 41.3
Warping Constant (Iw): 22.1 dm6
Torsional Constant (It): 422 cm4
Surface Area per Metre: 2.97 m2/m
Surface Area per Tonne: 13.2 m2/t

914x305x201 UB

Designation: 914x305x201
Serial Size: 914x305
Mass per Metre: 200.9 kg/m
Depth of Section (h): 903 mm
Width of Section (b): 303.3 mm
Web Thickness (tw): 15.1 mm
Flange Thickness (tf): 20.2 mm
Root Radius (r): 19.1 mm
Depth Between Fillets (d): 824.4 mm
Local Buckling Ratio d/tw: 54.6
Local Buckling Ratio cf/tf: 7.51
Second Moment of Area Ixx: 325,000 cm4
Second Moment of Area Iyy: 9,420 cm4
Elastic Modulus Zxx: 7,200 cm3
Elastic Modulus Zyy: 621 cm3
Plastic Modulus Sxx: 8,350 cm3
Plastic Modulus Syy: 982 cm3
Radius of Gyration rxx: 35.7 cm
Radius of Gyration ryy: 6.07 cm
Cross-Sectional Area: 256 cm2
Buckling Parameter (u): 0.854
Torsional Index (x): 46.8
Warping Constant (Iw): 18.4 dm6
Torsional Constant (It): 291 cm4
Surface Area per Metre: 2.96 m2/m
Surface Area per Tonne: 14.7 m2/t

914x305 UB — Overview

The 914x305 serial size group contains 4 sections, ranging from 200.9 kg/m to 289.1 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.