C30 vs C50
C50 is 1.3 times as stiff as C30. It is 1.1 times as dense. Per unit mass C50 is 1.2 times as stiff. Strength: f_m,k = 30 MPa for C30, f_m,k = 50 MPa for C50.
Side by side
ratio = C50 / C30 · log scale| Property | C30 | C50 | Unit | Ratio | ¼×1×4× |
|---|---|---|---|---|---|
| E₁ Modulus, direction 1 | 12 | 16 | GPa | 1.33× | |
| E₂ Modulus, direction 2 | 0.4 | 0.53 | GPa | 1.32× | |
| E₃ Modulus, direction 3 | 0.4 | 0.53 | GPa | 1.32× | |
| G₁₂ Shear modulus 1-2 | 0.75 | 1 | GPa | 1.33× | |
| G₁₃ Shear modulus 1-3 | 0.75 | 1 | GPa | 1.33× | |
| E₀,₀₅ Modulus parallel to grain, 5 % fractile | 8 | 10.7 | GPa | 1.34× | |
| ρ Density | 460 | 520 | kg/m³ | 1.13× | |
| ρ_k Density, characteristic (5 % fractile) | 380 | 430 | kg/m³ | 1.13× | |
| f_m,k Bending strength | 30 | 50 | MPa | 1.67× | |
| f_t,0,k Tension parallel to grain | 19 | 33.5 | MPa | 1.76× | |
| f_t,90,k Tension perpendicular to grain | 0.4 | 0.4 | MPa | 1× | |
| f_c,0,k Compression parallel to grain | 24 | 30 | MPa | 1.25× | |
| f_c,90,k Compression perpendicular to grain | 2.7 | 3 | MPa | 1.11× | |
| f_v,k Shear strength | 4 | 4 | MPa | 1× | |
| E/ρ Specific stiffness E/ρ · derived | 26.09 | 30.77 | MJ/kg | 1.18× | |
| c₀ Bar wave speed √(E/ρ) · derived | 5108 | 5547 | m/s | 1.09× | |
| f/ρ Specific strength f/ρ · derived | 65.22 | 96.15 | kJ/kg | 1.47× |
Values at the first thickness band or product form of each material (EN 338:2016; EN 338:2016). A minimum and a characteristic value are not the same kind of number — read the ratio as a guide. Each material's page lists every band and every source.