C22 vs C50

C50 is 1.6 times as stiff as C22. It is 1.3 times as dense. Per unit mass C50 is 1.3 times as stiff. Strength: f_m,k = 22 MPa for C22, f_m,k = 50 MPa for C50.

C22 EN 338:2016 C50 EN 338:2016

Side by side

ratio = C50 / C22 · log scale

Property	C22	C50	Unit	Ratio
E₁ Modulus, direction 1	10	16	GPa	1.6×
E₂ Modulus, direction 2	0.33	0.53	GPa	1.61×
E₃ Modulus, direction 3	0.33	0.53	GPa	1.61×
G₁₂ Shear modulus 1-2	0.63	1	GPa	1.59×
G₁₃ Shear modulus 1-3	0.63	1	GPa	1.59×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	6.7	10.7	GPa	1.6×
ρ Density	410	520	kg/m³	1.27×
ρ_k Density, characteristic (5 % fractile)	340	430	kg/m³	1.26×
f_m,k Bending strength	22	50	MPa	2.27×
f_t,0,k Tension parallel to grain	13	33.5	MPa	2.58×
f_t,90,k Tension perpendicular to grain	0.4	0.4	MPa	1×
f_c,0,k Compression parallel to grain	20	30	MPa	1.5×
f_c,90,k Compression perpendicular to grain	2.4	3	MPa	1.25×
f_v,k Shear strength	3.8	4	MPa	1.05×
E/ρ Specific stiffness E/ρ · derived	24.39	30.77	MJ/kg	1.26×
c₀ Bar wave speed √(E/ρ) · derived	4939	5547	m/s	1.12×
f/ρ Specific strength f/ρ · derived	53.66	96.15	kJ/kg	1.79×

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.