We commercialize 4 types of Aluminium alloys:
ALUMINIUM
AVIONAL 2011 - 2007
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 |