steel profile
18С
Dimensions and technical properties from the source catalogue are shown below.
- Catalogue
- GOST С (8240-97)
- Standard
- GOST 8240-97
- Source publication
- GOST 8240-97
Dimensions, weight and technical properties
| Property | Value | Unit |
|---|---|---|
| h | 180 | mm |
| b | 68 | mm |
| t_w | 7.0 | mm |
| t_f | 10.5 | mm |
| r | 10.5 | mm |
| r_2 | 5.3 | mm |
| A | 2570.00 | mm² |
| g | 20.20 | kg/m |
| I_x [GOST] | 12.7200 | 10⁶ mm⁴ |
| W_el,x [GOST] | 141.00 | 10³ mm³ |
| i_x [GOST] | 70.40 | mm |
| I_y [GOST] | 0.9850 | 10⁶ mm⁴ |
| W_el,y [GOST] | 20.10 | 10³ mm³ |
| i_y [GOST] | 19.60 | mm |
| x_0 [GOST] | 18.80 | 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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