EN 1993-1-1 Steel Section · Section of HEB
HEB 450 — Section Properties & EN 1993-1-1 Classification
HEB 450 is a Class 1 — Plastic
section in S355 (fy = 355 MPa).
S460: Class 2
h = 450 mm
b = 300 mm
A = 17,120 mm²
Iy = 79,890 cm⁴
Wpl,y = 4247 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
24.57 → 1
4.46 → 1
Class 1
S235
1.10
24.57 → 1
4.46 → 1
Class 1
S235
1.05
24.57 → 1
4.46 → 1
Class 1
S275
1.00
24.57 → 1
4.46 → 1
Class 1
S275
1.10
24.57 → 1
4.46 → 1
Class 1
S275
1.05
24.57 → 1
4.46 → 1
Class 1
S355
1.00
24.57 → 1
4.46 → 1
Class 1
S355
1.10
24.57 → 1
4.46 → 1
Class 1
S355
1.05
24.57 → 1
4.46 → 1
Class 1
S420
1.00
24.57 → 1
4.46 → 1
Class 1
S420
1.10
24.57 → 1
4.46 → 1
Class 1
S420
1.05
24.57 → 1
4.46 → 1
Class 1
S460
1.00
24.57 → 2
4.46 → 1
Class 2
S460
1.10
24.57 → 2
4.46 → 1
Class 2
S460
1.05
24.57 → 2
4.46 → 1
Class 2
Property Value
h (mm) 450 b (mm) 300 tw / tf (mm) 14 / 26 r (mm) 27 A (mm²) 17,120 Iy (cm⁴) 79,890 Iz (cm⁴) 11,720 Wel,y (cm³) 3551 Wpl,y (cm³) 4247 iy / iz (mm) 216 / 82.7
Design Resistances · γM0
Resistance Value
Npl,Rd 4,023.2 kN Vpl,Rd 1,161.4 kN Mpl,Rd 998 kNm Mel,Rd 834.5 kNm
Resistance Value
Npl,Rd 3,657.5 kN Vpl,Rd 1,055.8 kN Mpl,Rd 907.3 kNm Mel,Rd 758.6 kNm
Resistance Value
Npl,Rd 3,831.6 kN Vpl,Rd 1,106.1 kN Mpl,Rd 950.5 kNm Mel,Rd 794.7 kNm
Resistance Value
Npl,Rd 4,708 kN Vpl,Rd 1,359.1 kN Mpl,Rd 1,167.9 kNm Mel,Rd 976.5 kNm
Resistance Value
Npl,Rd 4,280 kN Vpl,Rd 1,235.5 kN Mpl,Rd 1,061.7 kNm Mel,Rd 887.7 kNm
Resistance Value
Npl,Rd 4,483.8 kN Vpl,Rd 1,294.4 kN Mpl,Rd 1,112.3 kNm Mel,Rd 930 kNm
Resistance Value
Npl,Rd 6,077.6 kN Vpl,Rd 1,754.5 kN Mpl,Rd 1,507.7 kNm Mel,Rd 1,260.6 kNm
Resistance Value
Npl,Rd 5,525.1 kN Vpl,Rd 1,595 kN Mpl,Rd 1,370.6 kNm Mel,Rd 1,146 kNm
Resistance Value
Npl,Rd 5,788.2 kN Vpl,Rd 1,670.9 kN Mpl,Rd 1,435.9 kNm Mel,Rd 1,200.6 kNm
Resistance Value
Npl,Rd 7,190.4 kN Vpl,Rd 2,075.7 kN Mpl,Rd 1,783.7 kNm Mel,Rd 1,491.4 kNm
Resistance Value
Npl,Rd 6,536.7 kN Vpl,Rd 1,887 kN Mpl,Rd 1,621.6 kNm Mel,Rd 1,355.8 kNm
Resistance Value
Npl,Rd 6,848 kN Vpl,Rd 1,976.8 kN Mpl,Rd 1,698.8 kNm Mel,Rd 1,420.4 kNm
Resistance Value
Npl,Rd 7,875.2 kN Vpl,Rd 2,273.4 kN Mpl,Rd 1,953.6 kNm Mel,Rd 1,633.5 kNm
Resistance Value
Npl,Rd 7,159.3 kN Vpl,Rd 2,066.7 kN Mpl,Rd 1,776 kNm Mel,Rd 1,485 kNm
Resistance Value
Npl,Rd 7,500.2 kN Vpl,Rd 2,165.1 kN Mpl,Rd 1,860.6 kNm Mel,Rd 1,555.7 kNm
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HEB 450 — Cross-Section Classification & Resistances
This page shows pre-computed EN 1993-1-1 design values for the HEB 450 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).