MAGNESIUM SPECIFICATIONS AND CHARACTERISTICS

  • High weight reduction (density 1,8 gr/cm3)
  • Hexagonal mesh structure
  • High resistance/weight ratio
  • Good impact resistance
  • High dent resistance
  • High energy absorption capacity
  • High vibration damping capacity
  • Low inertia
  • Excellent dimensional stability
  • Superior properties for casting:
    • Ability to manufacture thin parts
    • Prolong mould and tooling life
  • Excellent machinability
  • Good thermal conductivity
  • Very good electromagnetic shielding properties
  • Non-magnetic properties
  • Non-toxic
  • 100% ecological
  • 100% recyclable
  • Good anti-corrosion properties
  • Very suitable for safety parts

TYPICAL MECHANICAL PROPERTIES OF MAGNESIUM ALLOYS AT ROOM TEMPERATURE

Property

Unit

AZ91

AM60

AM50

AM20

AS41

AS21

AE42

Ultimate Tensile Strength, Rm

MPa

248

247

237

206

240

230

237

Tensile Yield Strength, Rp02 (0,2% offset)

MPa

148

123

116

94

130

120

130

Compressive Yield Strength

MPa

148

-

113

74

-

106

103

Fracture Elongation (L0=50 mm)

%

6,6

12

14

16

10

12

13

Elastic Modulus, Tension

GPa

45

45

45

45

45

45

45

Elastic Modulus, Shear

GPa

17

-

-

-

-

-

-

Brinell Hardness

HBS 1/5

70

65

60

45

60

55

60

Impact Strength, Charpy Unnotched Test Bars

J

6

17

18

18

4

5

5

TYPICAL PHYSICAL PROPERTIES OF MAGNESIUM ALLOYS

Property

Unit

AZ91

AM60

AM50

AM20

AS41

AS21

AE42

Density

g/cm3

1,81

1,8

1,77

1,75

1,77

1,76

1,79

Liquidus Temperature

ºC

598

615

620

638

617

632

625

Incipient Melting Temperature

ºC

420-435

420-435

420-435

420-435

420-435

420-435

590

Lin. Thermal Exp. Coefficient

µm/m K

26

26

26

26

26,1

26,1

26,1

Specific Heat of Fusion

KJ/Kg

370

370

370

370

370

370

370

Specific Heat

KJ/Kg K

1,02

1,02

1,02

1,02

1,02

1,02

1,02

Thermal Conductivity

W/K m

51

61

65

94

68

84

84

Electrical Conductivity

M S/m

6,6

-

9,1

13,1

-

10,8

11,7