steel profile
W21x12.25x147
Dimensions and technical properties from the source catalogue are shown below.
- Catalogue
- Nippon W
- Standard
- ASTM A6/A6M
- Source publication
- Nippon Steel Structural Shapes
Dimensions, weight and technical properties
| Property | Value | Unit |
|---|---|---|
| h | 560.3 | mm |
| b | 317.8 | mm |
| t_w | 18.29 | mm |
| t_f | 29.21 | mm |
| r_1 | 13.0 | mm |
| g | 218.8 | kg/m |
| A | 27870.0 | mm² |
| I_x | 1510.00 | 10⁶ mm⁴ |
| I_y | 156.00 | 10⁶ mm⁴ |
| i_x | 233.0 | mm |
| i_y | 74.90 | mm |
| W_el,x | 5400 | 10³ mm³ |
| W_el,y | 985 | 10³ mm³ |
| W_pl,x | 6120 | 10³ mm³ |
| W_pl,y | 1520 | 10³ mm³ |
| I_t | 6659.7028096 | 10³ mm⁴ |
| h | 22.06 | in |
| b | 12.510 | in |
| t_w | 0.720 | in |
| t_f | 1.150 | in |
| r_1 | 0.512 | in |
| g | 147 | lb/ft |
| A | 43.2 | in² |
| I_x | 3630 | in⁴ |
| I_y | 376 | in⁴ |
| i_x | 9.17 | in |
| i_y | 2.95 | in |
| W_el,x | 329 | in³ |
| W_el,y | 60.1 | in³ |
| W_pl,x | 373 | in³ |
| W_pl,y | 92.7 | in³ |
| I_t | 16 | in⁴ |
| d | 18.7 mm [PDF] | |
| 5.44 | ||
| 26.0 | ||
| u | 0.884 | |
| H | 41,100 in⁶ [PDF] | |
| nS | ||
| nS | ||
| C | ||
| C | ||
| c1 | ||
| c1 | ||
| c1 | ||
| c1 |
Source notes and corrections
Source H unit scale is unresolved; not a normalized warping constant.
Source d, ratios, u, x and classifications are retained for reference only, never used for substitution.
Page 32 repeats inconsistent d and slenderness values in 39 rows; no guessed corrections.
Imperial d is labelled mm in the PDF; no inferred unit correction.
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