steel profile
W21x12.25x182
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 | 577.1 | mm |
| b | 317.5 | mm |
| t_w | 21.08 | mm |
| t_f | 37.59 | mm |
| r_1 | 13.0 | mm |
| g | 270.8 | kg/m |
| A | 34650.0 | mm² |
| I_x | 1970.00 | 10⁶ mm⁴ |
| I_y | 201.00 | 10⁶ mm⁴ |
| i_x | 239.0 | mm |
| i_y | 76.20 | mm |
| W_el,x | 6830 | 10³ mm³ |
| W_el,y | 1270 | 10³ mm³ |
| W_pl,x | 7800 | 10³ mm³ |
| W_pl,y | 1950 | 10³ mm³ |
| I_t | 12903.1741936 | 10³ mm⁴ |
| h | 22.72 | in |
| b | 12.500 | in |
| t_w | 0.830 | in |
| t_f | 1.480 | in |
| r_1 | 0.512 | in |
| g | 182 | lb/ft |
| A | 53.7 | in² |
| I_x | 4730 | in⁴ |
| I_y | 483 | in⁴ |
| i_x | 9.39 | in |
| i_y | 3.00 | in |
| W_el,x | 417 | in³ |
| W_el,y | 77.2 | in³ |
| W_pl,x | 476 | in³ |
| W_pl,y | 119 | in³ |
| I_t | 31 | in⁴ |
| d | 18.7 mm [PDF] | |
| 4.22 | ||
| 22.6 | ||
| u | 0.890 | |
| H | 54,400 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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