D30 vs D35

D35 is 1.1 times as stiff as D30. Their densities are about the same. Per unit mass D35 is 1.1 times as stiff. Strength: f_m,k = 30 MPa for D30, f_m,k = 35 MPa for D35.

D30 EN 338:2016 D35 EN 338:2016

Side by side

ratio = D35 / D30 · log scale

Property	D30	D35	Unit	Ratio
E₁ Modulus, direction 1	11	12	GPa	1.09×
E₂ Modulus, direction 2	0.73	0.8	GPa	1.1×
E₃ Modulus, direction 3	0.73	0.8	GPa	1.1×
G₁₂ Shear modulus 1-2	0.69	0.75	GPa	1.09×
G₁₃ Shear modulus 1-3	0.69	0.75	GPa	1.09×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	9.2	10.1	GPa	1.1×
ρ Density	640	650	kg/m³	1.02×
ρ_k Density, characteristic (5 % fractile)	530	540	kg/m³	1.02×
f_m,k Bending strength	30	35	MPa	1.17×
f_t,0,k Tension parallel to grain	18	21	MPa	1.17×
f_t,90,k Tension perpendicular to grain	0.6	0.6	MPa	1×
f_c,0,k Compression parallel to grain	24	25	MPa	1.04×
f_c,90,k Compression perpendicular to grain	5.3	5.4	MPa	1.02×
f_v,k Shear strength	3.9	4.1	MPa	1.05×
E/ρ Specific stiffness E/ρ · derived	17.19	18.46	MJ/kg	1.07×
c₀ Bar wave speed √(E/ρ) · derived	4146	4297	m/s	1.04×
f/ρ Specific strength f/ρ · derived	46.88	53.85	kJ/kg	1.15×

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.