Metal for Construction and Building Structures: Grade Selection Guide

Short answer: Buildings lean on structural steel (S355, A992) for frames, B500B or A615 rebar for concrete, and coated or stainless metals for façades and roofing, with grade chosen for the local environment and the weld and corrosion demands of the job.

At a Glance

Steel: The Structural Backbone

Most frames are built from weldable structural grades such as S355 (EN 10025) or A992 / A572 (ASTM), with rebar to B500B or A615 for concrete. Our EN 10025 Guide, I-Beam vs H-Beam 그리고 Steel Rebar Guide cover the grades and sections.

Corrosion Protection on Site

Exposed steel is protected by galvanising or coated systems, and envelope metals are chosen for life-cycle cost. See our Galvanized Steel Grades, Metal Cladding Guide 그리고 Metal Roofing Guide.

Coastal and Aggressive Environments

Near salt water, 316 stainless and aluminium systems outlast plain steel; under insulation, the right coating prevents corrosion under insulation. Our 304 vs 430, CUI Guide 그리고 Seawater Corrosion Guide help specify for the site.

Aluminium in Architecture

Aluminium extrusions and panels bring light weight and a clean anodised finish to curtain walls and roofs; finish and coating choices are in our Aluminium Extrusion Supplier 그리고 Metal Surface Treatment Guide.

Sourcing for a Project

Project buyers bundle frames, rebar and envelope metals into one RFQ with Incoterms and schedule. Our How to Choose a Metal Supplier 그리고 Incoterms Guide cover the commercial side.

Get a Quote

Tell HXSCO your requirements and we will respond with a competitive quote and lead time.

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