305 x 127 x 42 kg Universal Beam S355
305 x 127 x 42 kg Universal Beam S355 is a universal beam measuring 306.6 × 124.3 mm, the workhorse profile for horizontal spans where depth can be traded against weight. Because most of the steel sits in the flanges, this profile is efficient in major-axis bending but comparatively weak about the minor axis — lateral-torsional restraint at the compression flange is usually what governs the design.
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At 42 kg per metre, one tonne buys roughly 23.8 linear metres. Weight-wise it sits in the everyday working band — the size most frequently specified where span and access have to be balanced against each other. Supplied in grade S355 to BS EN 10025-2, cut to your lengths and delivered worldwide. Heat numbers are traceable back to the rolling mill, with EN 10204 3.1 certificates issued against each delivery.
Typically specified for portal-frame rafters, opening lintels in load-bearing walls, transfer beams over removed walls, mezzanine framing and steel-framed extensions.
Where a beam bears on masonry, remember to specify padstones separately — they are a design item, not part of the steel supply.
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305 x 127 x 42 kg Universal Beam S355,
answered.
Common questions about the 305 x 127 x 42 kg Universal Beam S355 — weight, grade, cut-to-length and worldwide delivery.
- It weighs 42 kg per linear metre, so a tonne is approximately 23.8 metres. A 6 m length comes to about 252 kg. Use the figure for lifting plant selection and for pricing, since structural steel is sold by weight.
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