C16 vs C22

C22 is 1.2 times as stiff as C16. It is 1.1 times as dense. Per unit mass C22 is 1.1 times as stiff. Strength: f_m,k = 16 MPa for C16, f_m,k = 22 MPa for C22.

C16 EN 338:2016 C22 EN 338:2016

Side by side

ratio = C22 / C16 · log scale

Property	C16	C22	Unit	Ratio
E₁ Modulus, direction 1	8	10	GPa	1.25×
E₂ Modulus, direction 2	0.27	0.33	GPa	1.22×
E₃ Modulus, direction 3	0.27	0.33	GPa	1.22×
G₁₂ Shear modulus 1-2	0.5	0.63	GPa	1.26×
G₁₃ Shear modulus 1-3	0.5	0.63	GPa	1.26×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	5.4	6.7	GPa	1.24×
ρ Density	370	410	kg/m³	1.11×
ρ_k Density, characteristic (5 % fractile)	310	340	kg/m³	1.1×
f_m,k Bending strength	16	22	MPa	1.38×
f_t,0,k Tension parallel to grain	8.5	13	MPa	1.53×
f_t,90,k Tension perpendicular to grain	0.4	0.4	MPa	1×
f_c,0,k Compression parallel to grain	17	20	MPa	1.18×
f_c,90,k Compression perpendicular to grain	2.2	2.4	MPa	1.09×
f_v,k Shear strength	3.2	3.8	MPa	1.19×
E/ρ Specific stiffness E/ρ · derived	21.62	24.39	MJ/kg	1.13×
c₀ Bar wave speed √(E/ρ) · derived	4650	4939	m/s	1.06×
f/ρ Specific strength f/ρ · derived	43.24	53.66	kJ/kg	1.24×

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.