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Heavy-Duty H Beam Guide: Differences Between HEA, HEB and HEM Profiles for Large-Span Construction

Every week we get the same question in one form or another: which of these European wide-flange beams do I actually need? The short answer is that HEA, HEB and HEM are one family with three weight classes, and the cheapest way to build a large-span frame is to know which class your project falls into before you ask for prices.

HEA, HEB and HEM are the light, standard and heavy series of the European HE section, dimensioned to EN 10365 and rolled to EN 10034 tolerances. The steel grade is a separate choice under EN 10025-2 — S235JR if the work is light, S355JR or S355J2 when it isn't. At any given nominal size, HEA and HEB share the same flange width; only the wall thickness changes. HEM breaks that pattern: the flange is wider as well, and the section weighs roughly two and a half to three times as much as the same-size HEA.

The numbers tell the story better than any description. Take the most common size in the range:

Profile Depth h Flange width b Weight Moment of inertia Iy
HEA 200 190 mm 200 mm 42.3 kg/m 3,692 cm4
HEB 200 200 mm 200 mm 61.3 kg/m 5,696 cm4
HEM 200 220 mm 206 mm 103.1 kg/m 10,640 cm4

When to pick each series

HEA keeps the steel bill low when loads are modest and weight shows up on the freight invoice. Roof structures, mezzanines, secondary framing. It is also the obvious choice in seismic areas, where cutting dead load cuts cost in the foundations as well.

HEB is the workhorse for a simpler reason than engineering: it is what distributors actually stock. Availability decides many a tender before the calculations do. Main frames, columns, moderate crane runway beams, and any project where you aren't sure yet which series will win.

HEM is for the jobs where a standard section simply won't take the load and the design height is already fixed. Heavy columns, transfer girders, runway beams under big cranes. The thicker walls also make heavy bolted connections easier to detail.

[Get a Free Beam Comparison] — send us your span length and design loads, and we'll come back with a straight HEA/HEB/HEM comparison, weights and prices included, usually within a working day. 

Two Mistakes We See in Drawings that Come to Us

The first is swapping "the same size" between series and expecting nothing to change. The depth moves: HEA 200 is 190 mm, HEM 200 is 220 mm. Thirty millimetres of headroom, plus connection geometry, before you've done anything else.

The second is upgrading the steel grade when the section itself should change. S355J2 yields about 29% more than S275 and over 50% more than S235, but stiffness is identical for every grade because the elastic modulus doesn't move. If buckling is what governs, a grade upgrade is mostly wasted money; change the section or shorten the buckling length. If bending governs, the grade upgrade is usually the cheaper route.

[Request a Section Recommendation] — tell our engineers the span, the loads and the depth you can afford, and you'll get the cost-efficient profile back with a firm quote. 

The Paperwork that Saves You a Site Stop

Ask your supplier to confirm, before you commit: CE marking per EN 1090, mill certificates per EN 10204 3.1, and heat-number traceability. Steel that cannot be documented stops inspections long before it stops anything on site.

[Check Availability & Price] — we supply HEA, HEB and HEM up to HEB 1000 (314 kg/m) with full EN 10204 3.1 documentation. Send your enquiry and we'll confirm stock status and pricing. 

ROYAL GROUP

Address

Kangsheng development industry zone,
Wuqing district, Tianjin city, China.

E-mail

admin@royalsteelgroup.com

Phone

Cherry Yang - CEO : +8613652091506
Wendy Wu -Business Director : +8615222747108

Hours

Monday-Sunday: 24-hour Service

Post time: Oct-15-2026
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