StructureCalcs

W12X170

Wide-Flange Beam · AISC Shapes Database v15.0 · United States

W12X170 is a wide-flange beam 355.6 mm deep with a 320.0 mm flange, weighing 253.0 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.

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Published dimensions

PropertyMetricImperial
Depth, d355.6 mm14.00 in
Flange width, bf320.0 mm12.60 in
Flange thickness, tf39.6 mm1.560 in
Web thickness, tw24.4 mm0.960 in
Mass per metre253.0 kg/m170.0 lb/ft
Area, A32,258 mm²50.00 in²
Second moment, Ix686,781,853 mm⁴1,650.0 in⁴
Second moment, Iy215,191,647 mm⁴517.0 in⁴

Derived section properties

Integrated from the section's own outline including the root and toe radii, whose arcs are integrated analytically rather than approximated by facets. For W12X170 the computed area agrees with the published value to better than 0.01% and Ix to 0.67%. Where a value is also published, the published one above is the one to quote.

PropertyValue
Elastic modulus, Zx3,836,605 mm³
Elastic modulus, Zy1,355,027 mm³
Plastic modulus, Sx4,493,896 mm³
Plastic modulus, Sy2,072,574 mm³
Radius of gyration, rx145.4 mm
Radius of gyration, ry82.0 mm

Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed — S is elastic and Z is plastic.

Neighbouring sizes

Where these numbers come from

Published AISC Shapes Database v15.0 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API