Jul 29 2013
	Topics Covered
	Introduction
	Chemical Composition
	Physical Properties
	Mechanical Properties
	Thermal Properties
	Other Designations
	Introduction
	Magnesium alloys have been developed primarily for use in the automobile and aerospace sectors due to their lightweight properties. Magnesium AZ80A-T5 alloy is similar to, but stronger than, magnesium grade AZ61A-F alloy.
	The following sections will discuss in detail about magnesium AZ80A-T5 alloy.
	Chemical Composition
	The chemical composition of magnesium AZ80A-T5 alloy is outlined in the following table.
	
		
			| 
				Element | 
			
				Content (%) | 
		
		
			| 
				Aluminum, Al | 
			
				8.50 | 
		
		
			| 
				Zinc, Zn | 
			
				0.50 | 
		
		
			| 
				Magnesium, Mg | 
			
				Remainder | 
		
	
	Physical Properties
	The physical properties of magnesium AZ80A-T5 alloy are tabulated below.
	
		
			| 
				Properties | 
			
				Metric | 
			
				Imperial | 
		
		
			| 
				Density | 
			
				1.80 g/cm3 | 
			
				0.0650 lb/in3 | 
		
	
	Mechanical Properties
	The following table shows mechanical properties of magnesium AZ80A-T5 alloy.
	
		
			| 
				Properties | 
			
				Metric | 
			
				Imperial | 
		
		
			| 
				Tensile strength | 
			
				345 MPa | 
			
				50000 psi | 
		
		
			| 
				Yield strength | 
			
				250 MPa | 
			
				36300 psi | 
		
		
			| 
				Elastic modulus | 
			
				45 GPa | 
			
				6526 ksi | 
		
		
			| 
				Elongation | 
			
				11% | 
			
				11% | 
		
		
			| 
				Hardness, Brinell | 
			
				72 | 
			
				72 | 
		
		
			| 
				Hardness, Knoop | 
			
				95 | 
			
				95 | 
		
		
			| 
				Hardness, Vickers | 
			
				82 | 
			
				82 | 
		
		
			| 
				Machinability | 
			
				100 | 
			
				100 | 
		
	
	Thermal Properties
	The thermal properties of magnesium AZ80A-T5 alloy are tabulated below.
	
		
			| 
				Properties | 
			
				Metric | 
			
				Imperial | 
		
		
			| 
				Thermal expansion co-efficient | 
			
				26 µm/m°C | 
			
				14.4 µin/in°F | 
		
		
			| 
				Thermal conductivity | 
			
				76 W/mK | 
			
				527 BTU in/hr.ft².°F | 
		
	
	Other Designations
	Equivalent materials to magnesium AZ80A-T5 alloy are as follows:
	- 
		ASTM A276
 
	- 
		ASTM A580
 
	- 
		ASTM A412