Aluminium alloy ball 5XXX series ⚈ Accuracy and Industrial Bill

Aluminium balls are characterized by good corrosion and wear resistance combined with low weight. Excellent surface finish. The 5xxx series alloys show good usability.

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Chemical composition of the aluminium alloy ball 5XXX series

Element	type	If	Fe	Mn	Cr	Cu	Al	Mg	Zn	other each	other total
%	5050	0.40 max	0,70 max	max 0.10	max 0.10	0.20 max	balance	1,10-1,80	0.25 max	0.05 max	0.15 max

Physical characteristics of the 5XXX series aluminium alloy ball

Ownership	Value	Unit
Density	2.68	g/cm3
Young Module	72	GPA
Thermal expansion coefficient	23.4 (DT=0-100°C)	× 10−6 /°C
Thermal conductivity	153	W/m·K
Electrical resistivity	48	× 10 - 9 D·m
Specific heat	904	J/kg·K
Relative magnetic permeability	1,004	—
Magnetic behaviour	Paramagnetic	—

Hardness and mechanical resistance of 5XXX series aluminium alloy ball

Ownership	Value	Unit
Hardness	31-41 (Al 5050) / 130-150 (Al 5056)	HV0.5
Tensile failure load	120-160 (Al 5050) / 420-480 (Al 5056)	MPa
Tensile failure load	18-23 (Al 5050) / 61-69 (Al 5056)	psix10^3
Exercise temperatures	-196/200	° C
Exercise temperatures	-320,8/392	°F

Available diameters and grades for 5XXX series aluminium alloy ball

Parameter	Value
Minimum diameter	1 mm — 3/64′′′
Maximum diameter	150 mm — 6′′′
Grades available	G100-200-500-1000
Precision standards	ISO 3290 / AFBMA

Corrosion resistance of aluminium alloy ball 5XXX series

Corrosion resistance similar to 1XXX alloys, but better in the presence of chlorides and in contact with alkaline solutions. Good resistance in the atmosphere and in contact with fresh and salty water, organic acids, aldehydes. All Al alloys may be subjected to pitting corrosion in the presence of chlorides.