steel profile
30С
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 | 300 | mm |
| b | 85 | mm |
| t_w | 7.5 | mm |
| t_f | 13.5 | mm |
| r | 13.5 | mm |
| r_2 | 7.0 | mm |
| A | 4388.00 | mm² |
| g | 34.44 | kg/m |
| I_x [GOST] | 60.4543 | 10⁶ mm⁴ |
| W_el,x [GOST] | 403.03 | 10³ mm³ |
| i_x [GOST] | 117.40 | mm |
| I_y [GOST] | 2.6074 | 10⁶ mm⁴ |
| W_el,y [GOST] | 41.41 | 10³ mm³ |
| i_y [GOST] | 24.40 | mm |
| x_0 [GOST] | 22.00 | mm |
| slope [GOST] | 10 | % |
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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