D60 vs D70

D70 is 1.2 times as stiff as D60. It is 1.1 times as dense. Per unit mass they are about equally stiff (20.24 and 20.83 MJ/kg). Strength: f_m,k = 60 MPa for D60, f_m,k = 70 MPa for D70.

D60 EN 338:2016 D70 EN 338:2016

Side by side

ratio = D70 / D60 · log scale

Property	D60	D70	Unit	Ratio
E₁ Modulus, direction 1	17	20	GPa	1.18×
E₂ Modulus, direction 2	1.13	1.33	GPa	1.18×
E₃ Modulus, direction 3	1.13	1.33	GPa	1.18×
G₁₂ Shear modulus 1-2	1.06	1.25	GPa	1.18×
G₁₃ Shear modulus 1-3	1.06	1.25	GPa	1.18×
E₀,₀₅ Modulus parallel to grain, 5 % fractile	14.3	16.8	GPa	1.17×
ρ Density	840	960	kg/m³	1.14×
ρ_k Density, characteristic (5 % fractile)	700	800	kg/m³	1.14×
f_m,k Bending strength	60	70	MPa	1.17×
f_t,0,k Tension parallel to grain	36	42	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	33	36	MPa	1.09×
f_c,90,k Compression perpendicular to grain	10.5	12	MPa	1.14×
f_v,k Shear strength	4.8	5	MPa	1.04×
E/ρ Specific stiffness E/ρ · derived	20.24	20.83	MJ/kg	1.03×
c₀ Bar wave speed √(E/ρ) · derived	4499	4564	m/s	1.01×
f/ρ Specific strength f/ρ · derived	71.43	72.92	kJ/kg	1.02×

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.