EN 1993-1-1 Steel Section · Section of HEB
HEB 280 — Section Properties & EN 1993-1-1 Classification
HEB 280 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
h = 280 mm
b = 280 mm
A = 10,270 mm²
Iy = 19,270 cm⁴
Wpl,y = 1634 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
18.67 → 1
6.15 → 1
Class 1
S235
1.10
18.67 → 1
6.15 → 1
Class 1
S235
1.05
18.67 → 1
6.15 → 1
Class 1
S275
1.00
18.67 → 1
6.15 → 1
Class 1
S275
1.10
18.67 → 1
6.15 → 1
Class 1
S275
1.05
18.67 → 1
6.15 → 1
Class 1
S355
1.00
18.67 → 1
6.15 → 1
Class 1
S355
1.10
18.67 → 1
6.15 → 1
Class 1
S355
1.05
18.67 → 1
6.15 → 1
Class 1
S420
1.00
18.67 → 1
6.15 → 1
Class 1
S420
1.10
18.67 → 1
6.15 → 1
Class 1
S420
1.05
18.67 → 1
6.15 → 1
Class 1
S460
1.00
18.67 → 1
6.15 → 1
Class 1
S460
1.10
18.67 → 1
6.15 → 1
Class 1
S460
1.05
18.67 → 1
6.15 → 1
Class 1
Property Value
h (mm) 280 b (mm) 280 tw / tf (mm) 10.5 / 18 r (mm) 24 A (mm²) 10,270 Iy (cm⁴) 19,270 Iz (cm⁴) 6,590 Wel,y (cm³) 1376 Wpl,y (cm³) 1634 iy / iz (mm) 137 / 80.1
Design Resistances · γM0
Resistance Value
Npl,Rd 2,413.4 kN Vpl,Rd 696.7 kN Mpl,Rd 384 kNm Mel,Rd 323.4 kNm
Resistance Value
Npl,Rd 2,194 kN Vpl,Rd 633.4 kN Mpl,Rd 349.1 kNm Mel,Rd 294 kNm
Resistance Value
Npl,Rd 2,298.5 kN Vpl,Rd 663.5 kN Mpl,Rd 365.7 kNm Mel,Rd 308 kNm
Resistance Value
Npl,Rd 2,824.3 kN Vpl,Rd 815.3 kN Mpl,Rd 449.4 kNm Mel,Rd 378.4 kNm
Resistance Value
Npl,Rd 2,567.5 kN Vpl,Rd 741.2 kN Mpl,Rd 408.5 kNm Mel,Rd 344 kNm
Resistance Value
Npl,Rd 2,689.8 kN Vpl,Rd 776.5 kN Mpl,Rd 428 kNm Mel,Rd 360.4 kNm
Resistance Value
Npl,Rd 3,645.8 kN Vpl,Rd 1,052.5 kN Mpl,Rd 580.1 kNm Mel,Rd 488.5 kNm
Resistance Value
Npl,Rd 3,314.4 kN Vpl,Rd 956.8 kN Mpl,Rd 527.3 kNm Mel,Rd 444.1 kNm
Resistance Value
Npl,Rd 3,472.2 kN Vpl,Rd 1,002.3 kN Mpl,Rd 552.4 kNm Mel,Rd 465.2 kNm
Resistance Value
Npl,Rd 4,313.4 kN Vpl,Rd 1,245.2 kN Mpl,Rd 686.3 kNm Mel,Rd 577.9 kNm
Resistance Value
Npl,Rd 3,921.3 kN Vpl,Rd 1,132 kN Mpl,Rd 623.9 kNm Mel,Rd 525.4 kNm
Resistance Value
Npl,Rd 4,108 kN Vpl,Rd 1,185.9 kN Mpl,Rd 653.6 kNm Mel,Rd 550.4 kNm
Resistance Value
Npl,Rd 4,724.2 kN Vpl,Rd 1,363.8 kN Mpl,Rd 751.6 kNm Mel,Rd 633 kNm
Resistance Value
Npl,Rd 4,294.7 kN Vpl,Rd 1,239.8 kN Mpl,Rd 683.3 kNm Mel,Rd 575.4 kNm
Resistance Value
Npl,Rd 4,499.2 kN Vpl,Rd 1,298.8 kN Mpl,Rd 715.8 kNm Mel,Rd 602.8 kNm
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HEB 280 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEB 280 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).