W12x22 is a rolled structural beam with wide flanges that is used in construction and other applications.
W12x22 Beam Size and Dimensions
The dimensions and specifications of this structural steel beam are below:
Depth | 12.31 in |
Width | 4.03 in |
Area | 6.5 in2 |
Weight | 22 lb/ft |
Web Thickness | 0.26 in |
Flange Thickness | 0.43 in |
Area Moment of Inertia | 154 in4 |
Elastic Section Modulus | 25 in3 |
W12x22 Profile
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The depth of W12x22 beams may vary by 1/8” above and below the nominal value.
The flange width may vary by 1/4” above nominal and 3/16” below nominal. Flanges may be out of square by as much as 5/16”.
The distance from the center of the web to the center of the profile may be no greater than 3/16”.
The radii of fillets and toes for W-beams are not specified. Instead, these dimensions are left up to individual manufacturers.
W12x22 Weight
Wide flange beams are designated by their depth x weight. The W12x22 designation indicates that the beam weighs 22 pounds per foot. A 10-foot section of W12x22 would weigh 220 pounds and a 50-foot section of W12x22 would weigh 1,100 pounds.
W12x22 Conversion to Metric
The metric equivalent to W12x22 is W310x32.7. This metric beam has the following specifications:
Depth | 313 mm |
Width | 102 mm |
Area | 4180 mm2 |
Weight | 32.7 kg/m |
Web Thickness | 6.6 mm |
Flange Thickness | 10.8 mm |
W12x22 Section Properties
W12x22 Area Moment of Inertia
The area moment of inertia (or second moment area) for a W12x22 beam about the x-axis (perpendicular to the flange) can be calculated from the equation below:
The area moment of inertia of the W12x22 profile about the x-axis is approximately 154 in4.
W12x22 Section Modulus
The elastic section modulus for a W12x22 beam about the X-axis is calculated from the following equation:
The elastic section modulus for the W12x22 profile about the X-axis is approximately 25 in3.
W12x22 Properties
The properties of W12x22 beams are specified by ASTM A6 “Standard Specifications for Rolled Structural Steel Bars, Plates, Shapes and Sheet Piling”