What is the Blue Book?

The SCI/BCSA "Blue Book" (P363) tabulates dimensions, properties and member resistances for UK structural sections to Eurocode 3 - the standard reference for UK steel design.

What standard covers UK steel sections?

Sections are produced to BS 4-1 / BS EN 10365 and designed to BS EN 1993-1-1 with the UK National Annex. Common grades are S275 and S355.

How do I read a serial size like 457x191x67?

It is nominal depth x nominal width x mass per metre in mm and kg/m: roughly 457 mm deep, 191 mm wide, 67 kg/m.

United Kingdom steel sections

BS 4-1 / BS EN 10365 · 103 sections

UK Universal Beams and Columns are listed in the SCI "Blue Book" (publication P363) to BS 4-1 / BS EN 10365 and designed to BS EN 1993 (Eurocode 3) with the UK National Annex. UB sections are deep and narrow for bending; UC sections are near-square for columns.

Serial sizes give depth, width and mass (for example 457x191x67). The tables below list dimensions and section properties including elastic and plastic moduli.

Families

Frequently asked

What is the Blue Book?: The SCI/BCSA "Blue Book" (P363) tabulates dimensions, properties and member resistances for UK structural sections to Eurocode 3 - the standard reference for UK steel design.
What standard covers UK steel sections?: Sections are produced to BS 4-1 / BS EN 10365 and designed to BS EN 1993-1-1 with the UK National Annex. Common grades are S275 and S355.
How do I read a serial size like 457x191x67?: It is nominal depth x nominal width x mass per metre in mm and kg/m: roughly 457 mm deep, 191 mm wide, 67 kg/m.