EN 1993-1-1 Steel Section · Section of HEB
HEB 340 — Section Properties & EN 1993-1-1 Classification
HEB 340 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
h = 340 mm
b = 300 mm
A = 13,270 mm²
Iy = 36,660 cm⁴
Wpl,y = 2560 cm³
EN / NL / DE annexes
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Cross-Section Classification (EN 1993-1-1 Table 5.2)
Steel Grade
γM0
Web (c/tw )
Flange (c/tf )
Class
S235
1.00
20.25 → 1
5.44 → 1
Class 1
S235
1.10
20.25 → 1
5.44 → 1
Class 1
S235
1.05
20.25 → 1
5.44 → 1
Class 1
S275
1.00
20.25 → 1
5.44 → 1
Class 1
S275
1.10
20.25 → 1
5.44 → 1
Class 1
S275
1.05
20.25 → 1
5.44 → 1
Class 1
S355
1.00
20.25 → 1
5.44 → 1
Class 1
S355
1.10
20.25 → 1
5.44 → 1
Class 1
S355
1.05
20.25 → 1
5.44 → 1
Class 1
S420
1.00
20.25 → 1
5.44 → 1
Class 1
S420
1.10
20.25 → 1
5.44 → 1
Class 1
S420
1.05
20.25 → 1
5.44 → 1
Class 1
S460
1.00
20.25 → 1
5.44 → 1
Class 1
S460
1.10
20.25 → 1
5.44 → 1
Class 1
S460
1.05
20.25 → 1
5.44 → 1
Class 1
Property Value
h (mm) 340 b (mm) 300 tw / tf (mm) 12 / 21.5 r (mm) 27 A (mm²) 13,270 Iy (cm⁴) 36,660 Iz (cm⁴) 9,690 Wel,y (cm³) 2156 Wpl,y (cm³) 2560 iy / iz (mm) 166.2 / 85.5
Design Resistances · γM0
Resistance Value
Npl,Rd 3,118.4 kN Vpl,Rd 900.2 kN Mpl,Rd 601.6 kNm Mel,Rd 506.7 kNm
Resistance Value
Npl,Rd 2,835 kN Vpl,Rd 818.4 kN Mpl,Rd 546.9 kNm Mel,Rd 460.6 kNm
Resistance Value
Npl,Rd 2,970 kN Vpl,Rd 857.4 kN Mpl,Rd 573 kNm Mel,Rd 482.5 kNm
Resistance Value
Npl,Rd 3,649.3 kN Vpl,Rd 1,053.4 kN Mpl,Rd 704 kNm Mel,Rd 592.9 kNm
Resistance Value
Npl,Rd 3,317.5 kN Vpl,Rd 957.7 kN Mpl,Rd 640 kNm Mel,Rd 539 kNm
Resistance Value
Npl,Rd 3,475.5 kN Vpl,Rd 1,003.3 kN Mpl,Rd 670.5 kNm Mel,Rd 564.7 kNm
Resistance Value
Npl,Rd 4,710.9 kN Vpl,Rd 1,359.9 kN Mpl,Rd 908.8 kNm Mel,Rd 765.4 kNm
Resistance Value
Npl,Rd 4,282.6 kN Vpl,Rd 1,236.3 kN Mpl,Rd 826.2 kNm Mel,Rd 695.8 kNm
Resistance Value
Npl,Rd 4,486.5 kN Vpl,Rd 1,295.1 kN Mpl,Rd 865.5 kNm Mel,Rd 728.9 kNm
Resistance Value
Npl,Rd 5,573.4 kN Vpl,Rd 1,608.9 kN Mpl,Rd 1,075.2 kNm Mel,Rd 905.5 kNm
Resistance Value
Npl,Rd 5,066.7 kN Vpl,Rd 1,462.6 kN Mpl,Rd 977.5 kNm Mel,Rd 823.2 kNm
Resistance Value
Npl,Rd 5,308 kN Vpl,Rd 1,532.3 kN Mpl,Rd 1,024 kNm Mel,Rd 862.4 kNm
Resistance Value
Npl,Rd 6,104.2 kN Vpl,Rd 1,762.1 kN Mpl,Rd 1,177.6 kNm Mel,Rd 991.8 kNm
Resistance Value
Npl,Rd 5,549.3 kN Vpl,Rd 1,601.9 kN Mpl,Rd 1,070.5 kNm Mel,Rd 901.6 kNm
Resistance Value
Npl,Rd 5,813.5 kN Vpl,Rd 1,678.2 kN Mpl,Rd 1,121.5 kNm Mel,Rd 944.5 kNm
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HEB 340 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEB 340 HEB section. The governing cross-section class is 1 (Class 1 — Plastic), which determines whether the section may develop its full plastic moment capacity (Class 1–2) or is limited to the elastic moment (Class 3–4). Npl,Rd, Vpl,Rd, Mpl,Rd, and Mel,Rd are shown for all combinations of steel grade (S235 to S460) and national annex (EN γM0=1.00, NL γM0=1.10, DE γM0=1.05).