D60 vs D75

D75 is 1.3 times as stiff as D60. It is 1.2 times as dense. Per unit mass they are about equally stiff (20.24 and 21.57 MJ/kg). Strength: f_m,k = 60 MPa for D60, f_m,k = 75 MPa for D75.

D60 EN 338:2016 D75 EN 338:2016

Side by side

ratio = D75 / D60 · log scale

Property	D60	D75	Unit	Ratio
E₁ Modulus, direction 1	17	22	GPa	1.29×
E₂ Modulus, direction 2	1.13	1.47	GPa	1.3×
E₃ Modulus, direction 3	1.13	1.47	GPa	1.3×
G₁₂ Shear modulus 1-2	1.06	1.38	GPa	1.3×
G₁₃ Shear modulus 1-3	1.06	1.38	GPa	1.3×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	14.3	18.5	GPa	1.29×
ρ Density	840	1020	kg/m³	1.21×
ρ_k Density, characteristic (5 % fractile)	700	850	kg/m³	1.21×
f_m,k Bending strength	60	75	MPa	1.25×
f_t,0,k Tension parallel to grain	36	45	MPa	1.25×
f_t,90,k Tension perpendicular to grain	0.6	0.6	MPa	1×
f_c,0,k Compression parallel to grain	33	37	MPa	1.12×
f_c,90,k Compression perpendicular to grain	10.5	12.8	MPa	1.22×
f_v,k Shear strength	4.8	5	MPa	1.04×
E/ρ Specific stiffness E/ρ · derived	20.24	21.57	MJ/kg	1.07×
c₀ Bar wave speed √(E/ρ) · derived	4499	4644	m/s	1.03×
f/ρ Specific strength f/ρ · derived	71.43	73.53	kJ/kg	1.03×

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.