EN 1993-1-1 Steel Section · Section of HEM
HEM 300 — Section Properties & EN 1993-1-1 Classification
HEM 300 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
h = 340 mm
b = 310 mm
A = 15,790 mm²
Iy = 59,200 cm⁴
Wpl,y = 4161 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
10.67 → 1
3.79 → 1
Class 1
S235
1.10
10.67 → 1
3.79 → 1
Class 1
S235
1.05
10.67 → 1
3.79 → 1
Class 1
S275
1.00
10.67 → 1
3.79 → 1
Class 1
S275
1.10
10.67 → 1
3.79 → 1
Class 1
S275
1.05
10.67 → 1
3.79 → 1
Class 1
S355
1.00
10.67 → 1
3.79 → 1
Class 1
S355
1.10
10.67 → 1
3.79 → 1
Class 1
S355
1.05
10.67 → 1
3.79 → 1
Class 1
S420
1.00
10.67 → 1
3.79 → 1
Class 1
S420
1.10
10.67 → 1
3.79 → 1
Class 1
S420
1.05
10.67 → 1
3.79 → 1
Class 1
S460
1.00
10.67 → 1
3.79 → 1
Class 1
S460
1.10
10.67 → 1
3.79 → 1
Class 1
S460
1.05
10.67 → 1
3.79 → 1
Class 1
Property Value
h (mm) 340 b (mm) 310 tw / tf (mm) 21 / 31 r (mm) 27 A (mm²) 15,790 Iy (cm⁴) 59,200 Iz (cm⁴) 19,400 Wel,y (cm³) 3482 Wpl,y (cm³) 4161 iy / iz (mm) 193.6 / 110.8
Design Resistances · γM0
Resistance Value
Npl,Rd 3,710.7 kN Vpl,Rd 1,071.2 kN Mpl,Rd 977.8 kNm Mel,Rd 818.3 kNm
Resistance Value
Npl,Rd 3,373.3 kN Vpl,Rd 973.8 kN Mpl,Rd 888.9 kNm Mel,Rd 743.9 kNm
Resistance Value
Npl,Rd 3,534 kN Vpl,Rd 1,020.2 kN Mpl,Rd 931.3 kNm Mel,Rd 779.3 kNm
Resistance Value
Npl,Rd 4,342.3 kN Vpl,Rd 1,253.5 kN Mpl,Rd 1,144.3 kNm Mel,Rd 957.6 kNm
Resistance Value
Npl,Rd 3,947.5 kN Vpl,Rd 1,139.5 kN Mpl,Rd 1,040.3 kNm Mel,Rd 870.5 kNm
Resistance Value
Npl,Rd 4,135.5 kN Vpl,Rd 1,193.8 kN Mpl,Rd 1,089.8 kNm Mel,Rd 912 kNm
Resistance Value
Npl,Rd 5,605.4 kN Vpl,Rd 1,618.2 kN Mpl,Rd 1,477.2 kNm Mel,Rd 1,236.1 kNm
Resistance Value
Npl,Rd 5,095.9 kN Vpl,Rd 1,471 kN Mpl,Rd 1,342.9 kNm Mel,Rd 1,123.7 kNm
Resistance Value
Npl,Rd 5,338.5 kN Vpl,Rd 1,541.1 kN Mpl,Rd 1,406.8 kNm Mel,Rd 1,177.2 kNm
Resistance Value
Npl,Rd 6,631.8 kN Vpl,Rd 1,914.4 kN Mpl,Rd 1,747.6 kNm Mel,Rd 1,462.4 kNm
Resistance Value
Npl,Rd 6,028.9 kN Vpl,Rd 1,740.4 kN Mpl,Rd 1,588.7 kNm Mel,Rd 1,329.5 kNm
Resistance Value
Npl,Rd 6,316 kN Vpl,Rd 1,823.3 kN Mpl,Rd 1,664.4 kNm Mel,Rd 1,392.8 kNm
Resistance Value
Npl,Rd 7,263.4 kN Vpl,Rd 2,096.8 kN Mpl,Rd 1,914.1 kNm Mel,Rd 1,601.7 kNm
Resistance Value
Npl,Rd 6,603.1 kN Vpl,Rd 1,906.1 kN Mpl,Rd 1,740.1 kNm Mel,Rd 1,456.1 kNm
Resistance Value
Npl,Rd 6,917.5 kN Vpl,Rd 1,996.9 kN Mpl,Rd 1,822.9 kNm Mel,Rd 1,525.4 kNm
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HEM 300 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEM 300 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).