W12x19 is a rolled structural beam with wide flanges that is used in construction and other applications.
W12x19 Beam Size and Dimensions
The dimensions and specifications of this structural steel beam are below:
Depth | 12.16 in |
Width | 4.01 in |
Area | 5.6 in2 |
Weight | 19 lb/ft |
Web Thickness | 0.24 in |
Flange Thickness | 0.35 in |
Area Moment of Inertia | 127 in4 |
Elastic Section Modulus | 21 in3 |
W12x19 Profile
Elevate Your Engineering With Excel
Advance in Excel with engineering-focused training that equips you with the skills to streamline projects and accelerate your career.
The depth of W12x19 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.
W12x19 Weight
Wide flange beams are designated by their depth x weight. The W12x19 designation indicates that the beam weighs 19 pounds per foot. A 10-foot section of W12x19 would weigh 190 pounds and a 50-foot section of W12x19 would weigh 950 pounds.
W12x19 Conversion to Metric
The metric equivalent to W12x19 is W310x28.3. This metric beam has the following specifications:
Depth | 309 mm |
Width | 102 mm |
Area | 3590 mm2 |
Weight | 28.3 kg/m |
Web Thickness | 6 mm |
Flange Thickness | 8.9 mm |
W12x19 Section Properties
W12x19 Area Moment of Inertia
The area moment of inertia (or second moment area) for a W12x19 beam about the x-axis (perpendicular to the flange) can be calculated from the equation below:
The area moment of inertia of the W12x19 profile about the x-axis is approximately 127 in4.
W12x19 Section Modulus
The elastic section modulus for a W12x19 beam about the X-axis is calculated from the following equation:
The elastic section modulus for the W12x19 profile about the X-axis is approximately 21 in3.
W12x19 Properties
The properties of W12x19 beams are specified by ASTM A6 “Standard Specifications for Rolled Structural Steel Bars, Plates, Shapes and Sheet Piling”