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CURRENT LOCATION:NEWS >> Company's News >> AZ31B (3.5312, M11311) Magnesium

AZ31B (3.5312, M11311) Magnesium

Writer:Vera ChengSource:INTERNATIONAL SALES Date:2018-11-30

AZ31B (3.5312, M11311) Magnesium

AZ31B magnesium is a magnesium alloy. AZ31B is the ASTM designation for this material. M11311 is the UNS number. Additionally, the ISO numeric designation is WD21151. It has a very high melting temperature among the magnesium alloys in the database.

The properties of AZ31B magnesium include four common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare AZ31B magnesium to other magnesium alloys (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

 
 

45 GPa 6.5 x 106 psi

Elongation at Break

 
 

5.6 to 12 %

Fatigue Strength

 
 

100 to 120 MPa 15 to 18 x 103 psi

Poisson's Ratio

 
 

0.29

Shear Modulus

 
 

17 GPa 2.5 x 106 psi

Shear Strength

 
 

130 to 160 MPa 19 to 23 x 103 psi

Tensile Strength: Ultimate (UTS)

 
 

240 to 270 MPa 34 to 39 x 103 psi

Tensile Strength: Yield (Proof)

 
 

120 to 180 MPa 18 to 26 x 103 psi

 

Thermal Properties

Latent Heat of Fusion

 
 

350 J/g

Maximum Temperature: Mechanical

 
 

150 °C 300 °F

Melting Completion (Liquidus)

 
 

600 °C 1110 °F

Melting Onset (Solidus)

 
 

600 °C 1120 °F

Specific Heat Capacity

 
 

990 J/kg-K 0.24 BTU/lb-°F

Thermal Conductivity

 
 

100 W/m-K 60 BTU/h-ft-°F

Thermal Expansion

 
 

26 µm/m-K

 

Electrical Properties

Electrical Conductivity: Equal Volume

 
 

18 % IACS

Electrical Conductivity: Equal Weight (Specific)

 
 

95 % IACS

 

Otherwise Unclassified Properties

Base Metal Price

 
 

12 % relative

Density

 
 

1.7 g/cm3 110 lb/ft3

Embodied Carbon

 
 

23 kg CO2/kg material

Embodied Energy

 
 

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

 
 

970 L/kg 120 gal/lb

 

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

 
 

13 to 25 MJ/m3

Resilience: Unit (Modulus of Resilience)

 
 

170 to 370 kJ/m3

Stiffness to Weight: Axial

 
 

15 points

Stiffness to Weight: Bending

 
 

70 points

Strength to Weight: Axial

 
 

39 to 44 points

Strength to Weight: Bending

 
 

50 to 55 points

Thermal Diffusivity

 
 

62 m2/s

Thermal Shock Resistance

 
 

14 to 16 points

 

Alloy Composition

 

Magnesium (Mg)   93.6 to 97.1
Aluminum (Al)   2.4 to 3.6
Zinc (Zn)   0.5 to 1.5
Manganese (Mn)   0.050 to 1.0
Silicon (Si)   0 to 0.1
Iron (Fe)   0 to 0.050
Copper (Cu)   0 to 0.050
Calcium (Ca)   0 to 0.040
Nickel (Ni)   0 to 0.0050
Residuals   0 to 0.3

All values are % weight. Ranges represent what is permitted under applicable standards.

 

Followup Questions

 

Similar Alloys

 

Further Reading

ASTM B90: Standard Specification for Magnesium-Alloy Sheet and Plate

ASTM B107: Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire

Advances in Wrought Magnesium Alloys: Fundamentals of Processing, Properties and Applications, Colleen Bettles and Matthew Barnett (editors), 2012

ASTM B91: Standard Specification for Magnesium-Alloy Forgings

ISO 3116: Magnesium and magnesium alloys - Wrought magnesium alloys

Welding and Joining of Magnesium Alloys, Liming Liu (editor), 2010

Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993

 

TypeInfo: Company's News

Keywords for the information:AZ31B magnesium alloy