S Shapes - S310x60.7
S shapes are the original American Standard I-beam profile, characterised by a narrower flange and a steeper flange taper than modern wide-flange sections. They remain in the CISC tables for use in renovation and retrofit work matching existing structures, and occasionally in new construction where their proportions suit the application. Every S shape in the CISC 12 range is available here as a free CAD block, with full dimension and property data drawn from the CISC Structural Section Tables.
Nearby Sections
Dimensions
| Property | Value |
|---|---|
| Ds_i | S12x40.8 |
| D | 305 |
| B | 133 |
| T | 16.7 |
| W | 11.7 |
| K | 35 |
| K1 | 20 |
| T1 | 11.6 |
| T2 | 21.8 |
| Slp | 0.167 |
| Mass | 60.7 |
| Wt_i | 40.8 |
| A_Th | 7720 |
Full sortable table: Dimensions table for this category
Section Properties
| Property | Value |
|---|---|
| Ds_i | S12x40.8 |
| Mass | 60.7 |
| Wt_i | 40.8 |
| Prp | |
| Avl | * |
| Shp | 4 |
| Grp | |
| Use | 3 |
| BT | 3.98 |
| HW | 23.21 |
| Dn_m | 310 |
| A_A6 | 7740 |
| A_Th | 7720 |
| Ix | 113 |
| Sx | 743 |
| Rx | 121 |
| Zx | 868 |
| Iy | 5.56 |
| Sy | 83.7 |
| Ry | 26.8 |
| Zy | 145 |
| J | 721 |
| Cw | 116 |
| SA | 1.12 |
| Dn_i | 12 |
Full sortable table: Properties table for this category