steel profile
W21x6.5x50
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 | 529.1 | mm |
| b | 165.9 | mm |
| t_w | 9.65 | mm |
| t_f | 13.59 | mm |
| r_1 | 13.0 | mm |
| g | 74.41 | kg/m |
| A | 9480.0 | mm² |
| I_x | 410.00 | 10⁶ mm⁴ |
| I_y | 10.40 | 10⁶ mm⁴ |
| i_x | 208.0 | mm |
| i_y | 33.10 | mm |
| W_el,x | 1550 | 10³ mm³ |
| W_el,y | 125 | 10³ mm³ |
| W_pl,x | 1810 | 10³ mm³ |
| W_pl,y | 200 | 10³ mm³ |
| I_t | 416.2314256 | 10³ mm⁴ |
| h | 20.83 | in |
| b | 6.530 | in |
| t_w | 0.380 | in |
| t_f | 0.535 | in |
| r_1 | 0.512 | in |
| g | 50 | lb/ft |
| A | 14.7 | in² |
| I_x | 985 | in⁴ |
| I_y | 24.9 | in⁴ |
| i_x | 8.19 | in |
| i_y | 1.30 | in |
| W_el,x | 94.6 | in³ |
| W_el,y | 7.64 | in³ |
| W_pl,x | 110 | in³ |
| W_pl,y | 12.2 | in³ |
| I_t | 1 | in⁴ |
| d | 18.7 mm [PDF] | |
| 6.10 | ||
| 49.3 | ||
| u | 0.853 | |
| H | 2,570 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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