EN 1993-1-1 Steel Section · Section of HEB
HEB 320 — Section Properties & EN 1993-1-1 Classification
HEB 320 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
h = 320 mm
b = 300 mm
A = 12,470 mm²
Iy = 30,820 cm⁴
Wpl,y = 2291 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
19.57 → 1
5.72 → 1
Class 1
S235
1.10
19.57 → 1
5.72 → 1
Class 1
S235
1.05
19.57 → 1
5.72 → 1
Class 1
S275
1.00
19.57 → 1
5.72 → 1
Class 1
S275
1.10
19.57 → 1
5.72 → 1
Class 1
S275
1.05
19.57 → 1
5.72 → 1
Class 1
S355
1.00
19.57 → 1
5.72 → 1
Class 1
S355
1.10
19.57 → 1
5.72 → 1
Class 1
S355
1.05
19.57 → 1
5.72 → 1
Class 1
S420
1.00
19.57 → 1
5.72 → 1
Class 1
S420
1.10
19.57 → 1
5.72 → 1
Class 1
S420
1.05
19.57 → 1
5.72 → 1
Class 1
S460
1.00
19.57 → 1
5.72 → 1
Class 1
S460
1.10
19.57 → 1
5.72 → 1
Class 1
S460
1.05
19.57 → 1
5.72 → 1
Class 1
Property Value
h (mm) 320 b (mm) 300 tw / tf (mm) 11.5 / 20.5 r (mm) 27 A (mm²) 12,470 Iy (cm⁴) 30,820 Iz (cm⁴) 9,239 Wel,y (cm³) 1926 Wpl,y (cm³) 2291 iy / iz (mm) 157.2 / 86.1
Design Resistances · γM0
Resistance Value
Npl,Rd 2,930.4 kN Vpl,Rd 845.9 kN Mpl,Rd 538.4 kNm Mel,Rd 452.6 kNm
Resistance Value
Npl,Rd 2,664 kN Vpl,Rd 769 kN Mpl,Rd 489.4 kNm Mel,Rd 411.5 kNm
Resistance Value
Npl,Rd 2,790.9 kN Vpl,Rd 805.7 kN Mpl,Rd 512.7 kNm Mel,Rd 431.1 kNm
Resistance Value
Npl,Rd 3,429.3 kN Vpl,Rd 989.9 kN Mpl,Rd 630 kNm Mel,Rd 529.6 kNm
Resistance Value
Npl,Rd 3,117.5 kN Vpl,Rd 899.9 kN Mpl,Rd 572.7 kNm Mel,Rd 481.5 kNm
Resistance Value
Npl,Rd 3,266 kN Vpl,Rd 942.8 kN Mpl,Rd 600 kNm Mel,Rd 504.4 kNm
Resistance Value
Npl,Rd 4,426.9 kN Vpl,Rd 1,277.9 kN Mpl,Rd 813.3 kNm Mel,Rd 683.7 kNm
Resistance Value
Npl,Rd 4,024.4 kN Vpl,Rd 1,161.7 kN Mpl,Rd 739.4 kNm Mel,Rd 621.6 kNm
Resistance Value
Npl,Rd 4,216 kN Vpl,Rd 1,217.1 kN Mpl,Rd 774.6 kNm Mel,Rd 651.2 kNm
Resistance Value
Npl,Rd 5,237.4 kN Vpl,Rd 1,511.9 kN Mpl,Rd 962.2 kNm Mel,Rd 808.9 kNm
Resistance Value
Npl,Rd 4,761.3 kN Vpl,Rd 1,374.5 kN Mpl,Rd 874.7 kNm Mel,Rd 735.4 kNm
Resistance Value
Npl,Rd 4,988 kN Vpl,Rd 1,439.9 kN Mpl,Rd 916.4 kNm Mel,Rd 770.4 kNm
Resistance Value
Npl,Rd 5,736.2 kN Vpl,Rd 1,655.9 kN Mpl,Rd 1,053.9 kNm Mel,Rd 886 kNm
Resistance Value
Npl,Rd 5,214.7 kN Vpl,Rd 1,505.4 kN Mpl,Rd 958.1 kNm Mel,Rd 805.4 kNm
Resistance Value
Npl,Rd 5,463 kN Vpl,Rd 1,577 kN Mpl,Rd 1,003.7 kNm Mel,Rd 843.8 kNm
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HEB 320 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEB 320 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).