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HEA 400

HEA 400 Wide-flange H-section (light series)

  • EN 10365:2017
  • Design: EN 1993-1-1
  • Unverified
Weight Surface area Equivalents XML
Mass124.81kg/m
A15,899mm²
Ix450.73910⁶ mm⁴
Zx2,311.510³ mm³
HEA 400 cross-section
Cross-section drawn to scale from nominal dimensions. Cross-hair marks the centroid.

Dimensions

ParameterSymbolValueUnitData
Depthd390.0mmU
Flange widthbf300.0mmU
Flange thicknesstf19.0mmU
Web thicknesstw11.0mmU
Root radiusr127.0mmU

Section Properties

ParameterSymbolValueUnitData
General
Mass per metre mass124.81kg/mC
Gross area A15,899mm²C
About x-axis (major)
Second moment of area Ix Ix450.73910⁶ mm⁴C
Elastic section modulus Zx (min) Zx2,311.510³ mm³C
Plastic section modulus Sx Sx2,562.110³ mm³C
Radius of gyration rx rx168.4mmC
About y-axis (minor)
Second moment of area Iy Iy85.63910⁶ mm⁴C
Elastic section modulus Zy (min) Zy570.910³ mm³C
Plastic section modulus Sy Sy872.910³ mm³C
Radius of gyration ry ry73.4mmC
Torsion & warping
Torsion constant JApproximate thin-walled value, fillets neglected J1.52810⁶ mm⁴C
Warping constant IwIy·(d−tf)²/4 Iw2,946.8510⁹ mm⁶C
Surface area
External surface area extArea1.912m²/mC

Nominal designation mass 125.00 kg/m; calculated 124.81 kg/m (-0.2%).

Steel Grades

GradeStandard fy MPafu MPa NoteData
S275JR EN 10025-2:2019 265 410 Common grade – confirm with supplier U
S355J2 EN 10025-2:2019 345 470 Common grade – confirm with supplier U

Strengths shown for governing thickness t = 19.0 mm. Density 7850 kg/m³, E = 200 000 MPa.

Where to buy

Producers of Hot-rolled beams & columns (I / H / W) – local mills first. Buy direct from the mill for large tonnages, or through a steel distributor / stockist for small quantities and cut lengths.

Buying checklist
  • Specify the section designation, product standard and steel grade exactly (e.g. "HEA 400 – EN 10365:2017 – S275JR").
  • Ask for mill test certificates (EN 10204 type 3.1 or equivalent) traceable to the heat number.
  • Sections from another standard system are not automatically equivalent – have the engineer approve any substitution.
  • Check availability, minimum order quantity, stock lengths, lead time and delivery terms with the mill or distributor.

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Listing is informational only – not an endorsement, offer or confirmation of availability. Company details are marked UNVERIFIED until checked.

Source & Verification

Source publisher
Pending verification – nominal dimensions entered by the application developer
Source document
EN 10365:2017 Hot rolled steel channels, I and H sections – Dimensions and masses
Edition
2017
Publication year
2017
Page reference
—
Last updated
2026-10-12
Verification status
Unverified

Nominal dimensions require verification against the current edition of EN 10365:2017 Hot rolled steel channels, I and H sections – Dimensions and masses and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.

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