The W40x655 is a W-shaped structural steel section listed with dimensional and section data for reference, drafting, and preliminary engineering review. This page preserves the source values for depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight.
Use the accompanying DWG file as a drafting resource, then verify units, layer standards, geometry, and project requirements before incorporating the section into drawings or calculations. Related SteelSTD references on W-shapes, steel section properties, and structural steel detailing can help place this designation in context.
W Beam
refer to : AISC 16
the American Institute of Steel Construction (AISC) Specification for Structural Steel Buildings (AISC 360-16), which is the 2016 edition of the AISC Specification for Structural Steel Buildings. It provides guidelines and requirements for the design, fabrication, and erection of steel structures in the United States.
Depth : 1107.4 mm
Width : 429.3 mm
Web Thickness : 50 mm
Flange Thickness : 89.9 mm
Root Fillet Radius : 30 mm
Sectional Area : 1245.16 cm2
Unit Weight : 977.4 kg/m
How to read the W40x655 reference
The designation identifies a W beam, while the accompanying data describes the section’s geometry and material quantity per unit length. Depth and width describe the overall envelope of the section. Web thickness describes the central web, and flange thickness describes the horizontal flange elements.
The root fillet radius represents the curved transition between the web and flange. This detail matters when reviewing clearances, connection layouts, coping, and CAD geometry. The listed sectional area and unit weight are reference properties that may support estimating and engineering workflows, but they do not replace the applicable design checks or project specifications.
Design and detailing context
The source refers to the American Institute of Steel Construction Specification for Structural Steel Buildings (AISC 360-16). That specification provides requirements related to the design, fabrication, and erection of steel structures in the United States. Engineers should confirm the applicable project criteria, material requirements, limit states, connection design, stability considerations, and detailing requirements before selecting or specifying a section.
DWG reference file
The downloadable DWG is intended to support steel drafting and coordination. Before use, check the drawing’s units, insertion scale, layer organization, origin, and geometric alignment with the project template. CAD geometry should be treated as a reference resource and independently checked against the authoritative section data.
For additional guidance, link this page to related references covering W-shape dimensions, steel beam terminology, section properties, connection detailing, and DWG resources.
W40x655 frequently asked questions
What type of section is W40x655?
W40x655 is identified as a W beam, also commonly described as a wide-flange structural steel section. The source page provides its geometry and reference properties.
Which specification is referenced for this section?
The page refers to AISC 360-16, the American Institute of Steel Construction Specification for Structural Steel Buildings, identified in the source as the 2016 edition.
What do the web and flange thickness values describe?
Web thickness describes the central vertical portion of the section, while flange thickness describes the horizontal projecting portions. These dimensions are useful when reviewing section geometry and connection details.
Is the W40x655 DWG ready for construction drawings?
The DWG is a reference and drafting resource. Review its units, scale, layers, geometry, and project-specific drafting requirements before using it in a construction document.
Can the listed properties replace engineering design?
No. The listed dimensions and properties support reference and preliminary workflows, but final selection and design require project-specific engineering verification.
