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Wrought magnesium alloy AZ31B

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Wrought magnesium alloy AZ31B
Chemical composition: Mn = 0.2% min, Al=3.0%, Zn=1.0%, Mg balance
Property Value in metric unit Value in US unit
Density 1.77 *10³ kg/m³ 110 lb/ft³
Modulus of elasticity 45 GPa 6530 ksi
Thermal expansion (20 ºC) 26.0*10-6 ºCˉ¹ 14.4*10-6 in/(in* ºF)
Specific heat capacity 1000 J/(kg*K) 0.239 BTU/(lb*ºF)
Thermal conductivity 96 W/(m*K) 666 BTU*in/(hr*ft²*ºF)
Electric resistivity 9.2*10-8 Ohm*m 9.2*10-6 Ohm*cm
Tensile strength (annealed) 255 MPa 37000 psi
Yield strength (annealed) 150 MPa 21800 psi
Elongation (annealed) 15 % 15 %
Shear strength (annealed) 160 MPa 23200 psi
Hardness (annealed) 73 HB(500) 73 HB(500)
Tensile strength (hard rolled) 290 MPa 42100 psi
Yield strength (hard rolled) 220 MPa 31900 psi
Elongation (hard rolled) 7 % 7 %
Shear strength (hard rolled) 115 MPa 16700 psi
Hardness (hard rolled) 54 HB(500) 54 HB(500)
Annealing temperature 343 ºC 650 ºF
Liquidus temperature 632 ºC 1170 ºF
Solidus temperature 605 ºC 1120 ºF

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