S Shapes - S310x47
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 | S12x31.8 |
| D | 305 |
| B | 127 |
| T | 13.8 |
| W | 8.9 |
| K | 30 |
| K1 | 16 |
| T1 | 8.9 |
| T2 | 18.7 |
| Slp | 0.167 |
| Mass | 47 |
| Wt_i | 31.8 |
| A_Th | 6040 |
Full sortable table: Dimensions table for this category
Section Properties
| Property | Value |
|---|---|
| Ds_i | S12x31.8 |
| Mass | 47 |
| Wt_i | 31.8 |
| Prp | |
| Avl | * |
| Shp | 4 |
| Grp | |
| Use | 3 |
| BT | 4.6 |
| HW | 31.17 |
| Dn_m | 310 |
| A_A6 | 6030 |
| A_Th | 6040 |
| Ix | 91 |
| Sx | 597 |
| Rx | 123 |
| Zx | 689 |
| Iy | 3.88 |
| Sy | 61.2 |
| Ry | 25.4 |
| Zy | 105 |
| J | 372 |
| Cw | 82.3 |
| SA | 1.1 |
| Dn_i | 12 |
Full sortable table: Properties table for this category