steel profile
18аУ
Dimensions and technical properties from the source catalogue are shown below.
- Catalogue
- UE (AM2026 GOST)
- Standard
- GOST 8240-97
- Source publication
- GOST 8240-97
Dimensions, weight and technical properties
| Property | Value | Unit |
|---|---|---|
| h | 180 | mm |
| b | 74 | mm |
| t_w | 5.1 | mm |
| t_f | 9.3 | mm |
| r | 9.0 | mm |
| r_2 | 3.5 | mm |
| A | 2220.00 | mm² |
| g | 17.40 | kg/m |
| I_x [GOST] | 11.900 | 10⁶ mm⁴ |
| W_el,x [GOST] | 132.0 | 10³ mm³ |
| i_x [GOST] | 73.20 | mm |
| S_x [GOST] | 76.10 | 10³ mm³ |
| I_y [GOST] | 1.0500 | 10⁶ mm⁴ |
| W_el,y [GOST] | 20.00 | 10³ mm³ |
| i_y [GOST] | 21.80 | mm |
| x_0 [GOST] | 21.30 | mm |
Source notes and corrections
26С: original supplied PDF prints Iy=1115.60 cm⁴. Effective Iy=115.60 cm⁴ follows IUS 12-2004; original cells retained. Wy=171.60 cm³, iy=5.03 cm and x0=3.91 cm remain unverified and inconsistent; profile remains excluded from substitution.
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