C16 vs C35

C35 is 1.6 times as stiff as C16. It is 1.3 times as dense. Per unit mass C35 is 1.3 times as stiff. Strength: f_m,k = 16 MPa for C16, f_m,k = 35 MPa for C35.

C16 EN 338:2016 C35 EN 338:2016

Side by side

ratio = C35 / C16 · log scale

Property	C16	C35	Unit	Ratio
E₁ Modulus, direction 1	8	13	GPa	1.62×
E₂ Modulus, direction 2	0.27	0.43	GPa	1.59×
E₃ Modulus, direction 3	0.27	0.43	GPa	1.59×
G₁₂ Shear modulus 1-2	0.5	0.81	GPa	1.62×
G₁₃ Shear modulus 1-3	0.5	0.81	GPa	1.62×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	5.4	8.7	GPa	1.61×
ρ Density	370	470	kg/m³	1.27×
ρ_k Density, characteristic (5 % fractile)	310	390	kg/m³	1.26×
f_m,k Bending strength	16	35	MPa	2.19×
f_t,0,k Tension parallel to grain	8.5	22.5	MPa	2.65×
f_t,90,k Tension perpendicular to grain	0.4	0.4	MPa	1×
f_c,0,k Compression parallel to grain	17	25	MPa	1.47×
f_c,90,k Compression perpendicular to grain	2.2	2.7	MPa	1.23×
f_v,k Shear strength	3.2	4	MPa	1.25×
E/ρ Specific stiffness E/ρ · derived	21.62	27.66	MJ/kg	1.28×
c₀ Bar wave speed √(E/ρ) · derived	4650	5259	m/s	1.13×
f/ρ Specific strength f/ρ · derived	43.24	74.47	kJ/kg	1.72×

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.