EN AW-6061 T6 vs EN AW-6063 T5

EN AW-6063 T5 and EN AW-6061 T6 are about equally stiff. Their densities are about the same. Per unit mass they are about equally stiff (25.93 and 25.93 MJ/kg). Strength: f_o = 240 MPa for EN AW-6061 T6, f_o = 130 MPa for EN AW-6063 T5.

EN AW-6061 T6 EN 1999-1-1 · t ≤ 20 mm · EP, ET, ER/B EN AW-6063 T5 EN 1999-1-1 · t ≤ 3 mm · EP, ET, ER/B

Side by side

ratio = EN AW-6063 T5 / EN AW-6061 T6 · log scale

Property	EN AW-6061 T6	EN AW-6063 T5	Unit	Ratio
E Young's modulus	70	70	GPa	1×
G Shear modulus	27	27	GPa	1×
ν Poisson's ratio	0.3	0.3	–	1×
ρ Density	2700	2700	kg/m³	1×
α Coefficient of thermal expansion	23	23	10⁻⁶/K	1×
λ Thermal conductivity	170	—	W/(m·K)	—
σ_e Electrical conductivity	22	—	MS/m	—
f_u Tensile strength (R_m)	260	175	MPa	0.673×
f_o 0.2 % proof strength	240	130	MPa	0.542×
f_o,haz 0.2 % proof strength in the heat-affected zone	115	60	MPa	0.522×
f_u,haz Tensile strength in the heat-affected zone	175	100	MPa	0.571×
E/ρ Specific stiffness E/ρ · derived	25.93	25.93	MJ/kg	1×
c₀ Bar wave speed √(E/ρ) · derived	5092	5092	m/s	1×
f/ρ Specific strength f/ρ · derived	88.89	48.15	kJ/kg	0.542×

Values at the first thickness band or product form of each material (EN 1999-1-1 · t ≤ 20 mm · EP, ET, ER/B; EN 1999-1-1 · t ≤ 3 mm · EP, ET, ER/B). 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.