Applications
Special bearings and valves, they are used in automotive industry (safety devices), aviation and aerospace industry, electronic industry, welding processes.

Chemical composition

Type	%Si	%Fe	%Mn	%Cr	%Cu	%Al	%Mg	%Zn	%Other(each)	%Other(total)
5050	0.40 max	0.70 max	0.10 max	0.10 max	0.20 max	balance	1.10-1.80	0.25 max	0.05 max	0.15 max
5056	0.30 max	0.40 max	0.05-0.20	0.05-0.20	0.10 max	balance	4.50-5.60	0.10 max	0.05 max	0.15 max

International standards

Series	Description	Available heat treatments
5xxx	Al-Mg alloy	5050 O - 5056 T2

Physical / mechanical / thermal / electric / magnetic properties

Property	Symbol	U.o.M.	Type	Notes	Values
Density	δ	[g/cm3]	Physical	Room temp.	2.68
Young's modulus	E	[GPa]	Mechanical	-	72
Specific heat	c	[J/kg-K]	Thermal	Room temp.	904
Coefficient of linear thermal expansion	α	[10^-6/ºC]	Thermal	(ΔT=0-100°C)	23.4
Thermal conductivity	λ	[W/(m·K)]	Thermal	Room temp.	153.0
Electric resistivity	ρ	[Ωm10^-9]	Electric	-	48
Relative magnetic permeability	µ	-	Magnetic	Paramagnetic	1.004

Technical data

Property	Type	U.o.M.	Values	U.o.M.	Values
Hardness	Mechanical	[HV0.5]	31-41 (Al 5050)	[HV0.5]	130-150 (Al 5056)
Ultimate tensile strength	Mechanical	[MPa]	120-160 (Al 5050) / 420-480 (Al 5056)	[psix10^3]	18-23 (Al 5050) / 61-69 (Al 5056)
Service temperature	Thermal	[ºC]	-196 / 200	[ºF]	-320.8 / 392

Corrosion Resistance
Corrosion resistance similar to series 1xxx, better against chlorides and alkaline solutions. Good atmospheric corrosion resistance and against freshwater, seawater, organic acids, aldehydes. All aluminium alloys are subjected to pitting corrosion in presence of chlorides.

5050 Solid Aluminum Balls In Shear Connectors For Welding Shuts Anodized Colors

Stainless Steel Balls