ALUMINIUM

9002/5- 2011 - DinAlCuBiPb - EN AW 2011

This alloy is the most often selected for high speed automatic lathes. It offers the following advantages:

• easy machining with any equipment;
• cutting stress lower than most of other alloys;
• better allowances and better finishing on the surface of turned parts;
• longer life of cutting tools;
• cutting area always clean due to very thin chip;
• high mechanical properties.

11S 9002/5 is the most recommended alloy to fast and easy machining.

CHEMICAL COMPOSITION %

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Bi	Pb
=< 0,4	=< 0,7	5,0÷6,0				=< 0,3		0,2÷0,6	0,2÷0,6

 

PHYSICAL PROPERTIES

Density	Kg/dm3	2,83
Modulus of elasticity	N/mm2	70.000
Coefficient of thermal expansion	x 10-6	22,9
Thermal conductivity at 20°C	W/mK	151÷172
Electrical conductivity at 20°C	m/ohm mm2	23÷26

 

MINIMUM MECHANICAL PROPERTIES

State	Tensile strength Rm N/mm2	Conventional limit of elasticity 0,2 % Rp 0,2 N/mm2	Elongation %	Brinell Hardness HB
T6	360	300	12	115

 

9006/1- 6060 - AlMgSi0,5 - EN AW 6060

This alloy has medium mechanical properties. It is used on pieces to be heat treated or anodized.

CHEMICAL COMPOSITION %

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Bi	Pb
0,3÷0,6	=< 0,30	=< 0,10	0,1;	0,3÷0,6	0,1	=< 0,20	=< 0,10

 

MINIMUM MECHANICAL PROPERTIES

State	Tensile strength Rm N/mm2	Conventional limit of elasticity 0,2 % Rp 0,2 N/mm2	Elongation %	Brinell Hardness HB
T6	230	210	12	75-80

 

9006/4 - 6082 - DinAlMgSi1 - EN AW 6082

This alloy has medium mechanical properties but machining with automatic lathes is difficult. It can be substituted with 6012 alloy for large quantity production.

CHEMICAL COMPOSITION %

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Bi	Pb
0,7÷1,3	=< 0,50	=< 0,10	0,4÷1	0,6÷1,2	=< 0,25	=< 0,20	=< 0,10

 

MINIMUM MECHANICAL PROPERTIES

State	Tensile strength Rm N/mm2	Conventional limit of elasticity 0,2 % Rp 0,2 N/mm2	Elongation %	Brinell Hardness HB
T0-T6	310	260	10	95-100

 

7075 - DinAlZnMgCu1,5 - EN AW 7075

This alloy has extremely high mechanical properties and high resistance.
It’s mainly used in the aviation and military industries.

CHEMICAL COMPOSITION %

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Ti+Zr
=< 0,4	=< 0,5	1,2÷2,0	=< 0,3	2,1÷2,9	0,18÷0,28	5,1÷6,1	=< 0,10	=< 0,25

 

PHYSICAL PROPERTIES

Density	Kg/dm3	2,80
Modulus of elasticity	N/mm2	72.000
Coefficient of thermal expansion	x 10-6	23,5

 

MINIMUM MECHANICAL PROPERTIES

State	Tensile strength Rm N/mm2	Conventional limit of elasticity 0,2 % Rp 0,2 N/mm2	Elongation %	Brinell Hardness HB
T6	510	440	7	140

 

MECHANICAL PROPERTIES

Strength Rm	220-250 N/mm^2 (Mpa)
Yield strength Rp 0,2	110 N/mm^2 (Mpa)
Elongation (A5%)	15
Hardness HBS	65-70
Specific weight (g/cm^3)	2,66
Thermal conductivity (W/m*K)	0,10
Electrical conductivity	110-130
Modulus of elasticity (GPa)	70
Coefficient of thermal expansion	23,3
Machinability	Good
Shape stability	Good
Welding	Good
Anodic oxidation	Good
Hard anodization	Good

 

CORROSION RESISTANCE

Normal environment	Good
Marine environment	Good
Nickelization	Good

 

CHEMICAL COMPOSITION %

Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Ti	Ca
=<0,40	=<0,40	=<0,10	0,40÷1,00	4,00÷4,90	0,050÷0,250	=<0,050	=<0,250	0,050÷0,100	=<0,0010