steel profile
W18x7.5x55
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 | 460.0 | mm |
| b | 191.3 | mm |
| t_w | 9.91 | mm |
| t_f | 16.00 | mm |
| r_1 | 13.0 | mm |
| g | 81.85 | kg/m |
| A | 10450.0 | mm² |
| I_x | 373.00 | 10⁶ mm⁴ |
| I_y | 18.70 | 10⁶ mm⁴ |
| i_x | 189.0 | mm |
| i_y | 42.30 | mm |
| W_el,x | 1620 | 10³ mm³ |
| W_el,y | 196 | 10³ mm³ |
| W_pl,x | 1840 | 10³ mm³ |
| W_pl,y | 304 | 10³ mm³ |
| I_t | 832.4628512 | 10³ mm⁴ |
| h | 18.11 | in |
| b | 7.530 | in |
| t_w | 0.390 | in |
| t_f | 0.630 | in |
| r_1 | 0.512 | in |
| g | 55 | lb/ft |
| A | 16.2 | in² |
| I_x | 896 | in⁴ |
| I_y | 44.9 | in⁴ |
| i_x | 7.44 | in |
| i_y | 1.67 | in |
| W_el,x | 99.0 | in³ |
| W_el,y | 11.9 | in³ |
| W_pl,x | 112 | in³ |
| W_pl,y | 18.6 | in³ |
| I_t | 2 | in⁴ |
| d | 15.8 mm [PDF] | |
| 5.98 | ||
| 40.6 | ||
| u | 0.878 | |
| H | 3,430 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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