EN 1993-1-1 Steel Section · Section of HEM
HEM 400 — Section Properties & EN 1993-1-1 Classification
HEM 400 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
h = 432 mm
b = 307 mm
A = 19,760 mm²
Iy = 117,500 cm⁴
Wpl,y = 6602 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
12.92 → 1
3.37 → 1
Class 1
S235
1.10
12.92 → 1
3.37 → 1
Class 1
S235
1.05
12.92 → 1
3.37 → 1
Class 1
S275
1.00
12.92 → 1
3.37 → 1
Class 1
S275
1.10
12.92 → 1
3.37 → 1
Class 1
S275
1.05
12.92 → 1
3.37 → 1
Class 1
S355
1.00
12.92 → 1
3.37 → 1
Class 1
S355
1.10
12.92 → 1
3.37 → 1
Class 1
S355
1.05
12.92 → 1
3.37 → 1
Class 1
S420
1.00
12.92 → 1
3.37 → 1
Class 1
S420
1.10
12.92 → 1
3.37 → 1
Class 1
S420
1.05
12.92 → 1
3.37 → 1
Class 1
S460
1.00
12.92 → 1
3.37 → 1
Class 1
S460
1.10
12.92 → 1
3.37 → 1
Class 1
S460
1.05
12.92 → 1
3.37 → 1
Class 1
Property Value
h (mm) 432 b (mm) 307 tw / tf (mm) 24 / 34 r (mm) 27 A (mm²) 19,760 Iy (cm⁴) 117,500 Iz (cm⁴) 21,550 Wel,y (cm³) 5440 Wpl,y (cm³) 6602 iy / iz (mm) 243.9 / 104.4
Design Resistances · γM0
Resistance Value
Npl,Rd 4,643.6 kN Vpl,Rd 1,340.5 kN Mpl,Rd 1,551.5 kNm Mel,Rd 1,278.4 kNm
Resistance Value
Npl,Rd 4,221.5 kN Vpl,Rd 1,218.6 kN Mpl,Rd 1,410.4 kNm Mel,Rd 1,162.2 kNm
Resistance Value
Npl,Rd 4,422.5 kN Vpl,Rd 1,276.7 kN Mpl,Rd 1,477.6 kNm Mel,Rd 1,217.5 kNm
Resistance Value
Npl,Rd 5,434 kN Vpl,Rd 1,568.7 kN Mpl,Rd 1,815.5 kNm Mel,Rd 1,496 kNm
Resistance Value
Npl,Rd 4,940 kN Vpl,Rd 1,426.1 kN Mpl,Rd 1,650.5 kNm Mel,Rd 1,360 kNm
Resistance Value
Npl,Rd 5,175.2 kN Vpl,Rd 1,494 kN Mpl,Rd 1,729.1 kNm Mel,Rd 1,424.8 kNm
Resistance Value
Npl,Rd 7,014.8 kN Vpl,Rd 2,025 kN Mpl,Rd 2,343.7 kNm Mel,Rd 1,931.2 kNm
Resistance Value
Npl,Rd 6,377.1 kN Vpl,Rd 1,840.9 kN Mpl,Rd 2,130.6 kNm Mel,Rd 1,755.6 kNm
Resistance Value
Npl,Rd 6,680.8 kN Vpl,Rd 1,928.6 kN Mpl,Rd 2,232.1 kNm Mel,Rd 1,839.2 kNm
Resistance Value
Npl,Rd 8,299.2 kN Vpl,Rd 2,395.8 kN Mpl,Rd 2,772.8 kNm Mel,Rd 2,284.8 kNm
Resistance Value
Npl,Rd 7,544.7 kN Vpl,Rd 2,178 kN Mpl,Rd 2,520.8 kNm Mel,Rd 2,077.1 kNm
Resistance Value
Npl,Rd 7,904 kN Vpl,Rd 2,281.7 kN Mpl,Rd 2,640.8 kNm Mel,Rd 2,176 kNm
Resistance Value
Npl,Rd 9,089.6 kN Vpl,Rd 2,623.9 kN Mpl,Rd 3,036.9 kNm Mel,Rd 2,502.4 kNm
Resistance Value
Npl,Rd 8,263.3 kN Vpl,Rd 2,385.4 kN Mpl,Rd 2,760.8 kNm Mel,Rd 2,274.9 kNm
Resistance Value
Npl,Rd 8,656.8 kN Vpl,Rd 2,499 kN Mpl,Rd 2,892.3 kNm Mel,Rd 2,383.2 kNm
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HEM 400 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEM 400 HEM 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).