IPE 300 - Section Properties

The IPE 300 is a European I-beam (IPE) with a mass of 42.2 kg/m, an overall depth of 300 mm and width of 150 mm. It has a cross-sectional area of 53.8 cm², a second moment of area Iᵧ of 8360 cm⁴, a plastic modulus Wₚₗ,ᵧ of 628 cm³, tabulated by CivilAxis from EN 10365 · Continental Steel.

Mass: 42.2 kg/m
Depth: 300 mm
Width: 150 mm
Area: 53.8 cm²

Ask about capacity, buckling or detailing for IPE 300.

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Dimension symbols for IPE sections. Not to scale.

IPE 300 section properties to EN 10365 · Continental Steel.
Geometry
Depth of section	h	300
Width of section	b	150
Web thickness	t_w	7.1
Flange thickness	t_f	10.7
Root fillet radius	r	15
Depth between fillets	d	248.6
Mass and area
Mass per metre	mass	42.2
Cross-sectional area	A	53.8
Bending about the major axis (y-y)
Area moment of inertia about y-axis	I_y	8360
Elastic section modulus about y-axis	W_el,y	557
Plastic section modulus about y-axis	W_pl,y	628
Radius of gyration about y-axis	i_y	12.5
Bending about the minor axis (z-z)
Area moment of inertia about z-axis	I_z	604
Elastic section modulus about z-axis	W_el,z	81
Plastic section modulus about z-axis	W_pl,z	125
Radius of gyration about z-axis	i_z	3.35
Torsion and warping
Torsion constant (St Venant)	I_t	19.9
Warping constant	I_w	0.126
Classification and stability
Flange local-buckling ratio	c_f/t_f	5.28
Web local-buckling ratio	c_w/t_w	35
Buckling parameter	u	5.498
Torsional index	X	26.8
Detailing dimensions
End clearance	C	6
Notch dimension N	N	82
Notch dimension n	n	26
Surface area
Surface area per metre	SA/m	1.16

Is IPE 300 strong enough?

Simply supported beam, uniform load, major-axis bending - to EN 1993-1-1.

Span (m)Load (kN/m)Grade

✅Passes - 58% utilised, deflection governs

Bending30%

67.5 / 222.9 kNm

Shear9%

45.0 / 526.1 kN

Deflection58%

9.6 / 16.7 mm

Class 1 section. ULS uses γQ = 1.5 on the load you enter; deflection uses the unfactored load against L/360. Lateral-torsional buckling is not included - the compression flange is assumed restrained.