AMESWEB

Steel C Channel Sizes Calculator

Interactive calculator for American standard steel C channels. Select the channel depth and weight per unit length to obtain dimensions, cross-section area, moments of inertia, section modulus and radii of gyration according to ASTM A6/A6M.

Overview

Use this steel C channel sizes calculator to quickly look up section properties for American standard C shapes. The tool returns geometric properties such as area, moments of inertia, section modulus and radius of gyration, based on standard data.

The designation of a steel channel indicates its nominal depth and weight per unit length. For example, C10 × 30 represents a channel with approximately 10 in depth and 30 lb/ft weight.

Dimensions and section properties of American standard steel channels are defined in ASTM A6/A6M.

How to use: select the channel depth in the left list, then choose the desired weight per unit length. Click Calculate to display the corresponding section properties.

Input Parameters

Input parameters
Actual depth Weight in pounds per foot

 

Output Parameters

American standard steel C channel section and dimensions
American standard steel C channel – depth, flange width and thickness, and reference axes.
Calculated section properties
Parameter Value
General data
Designation --- ---
Weight per unit length [W] --- lb/ft
Cross section area [A] --- in^2
Section dimensions
Depth [d] --- in
Web thickness [tw] ---
Flange width [bf] ---
Flange thickness [tf] ---
Moments of inertia
Second moment of area about x-x [Ixx] --- in^4
Second moment of area about y-y [Iyy] ---
Section modulus
Section modulus about x-x [Sxx] --- in^3
Section modulus about y-y [Syy] ---
Radii of gyration
Radius of gyration about x-axis [rx] --- in
Radius of gyration about y-axis [ry] ---
Distance from centroid to outer face [x] ---

Note: Use dot “.” as decimal separator.

Supplements

Reference

  • Oberg, E., Jones, F. D., Horton, H. L., Ryffel, H. H. (2016). Machinery's Handbook , 30th edition. Industrial Press Inc., p. 2615.
  • ASTM A6/A6M – Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling.