Active Atom Materials - Aluminum Group

Periodic Table Element Al

The base element material for this section is Aluminum.
Aluminum comes from the foundry in 1000 through 9000 series. This is a 4 index system there are 3 distinct groups.
Group one is for the 1xxx series is 99.00% pure or higher
Group two is for the 2xxx through 8xxx series is the alloyed group Active Atom works within.
Group three is for the 9xxx series currently note publicly in use.

2024-xxxx

Material specification based on –T851
We machine in 2024-xxxx aluminum Al 90.7% to 94.7% it is alloyed with 0.1% chromium Cr, 3.8% to 4.9% copper Cu, 0.5% iron Fe, 1.2% to 1.8% magnesium Mg, 0.3% to 0.9% manganese Mn, 0.5% silicon Si, 0.15% titanium Ti, 0.25% zinc Zn other 0.25%, other total 015%.
Machinability Scale 70%
Hardness Rockwell HRB 70

6061-xxxx

Material specification based on -T651
We machine in 6061-xxxx aluminum Al 95.8% to 98.6% it is alloyed with 0.04% to 0.35% chromium Cr,
0.15% to 0.4% copper Cu, 0.7% iron Fe, 0.8% to 1.2% magnesium Mg 0.15% manganese Mn, 0.4% to 0.8% silicon Si, 0.15% titanium Ti, 0.25% zinc Zn, other 0.05%, total 0.15%
Machinability Scale 50%
Hardness Rockwell HRB 60

7075-xxxx

Material Specification based on –T651
We machine in 7075-xxxx aluminum Al 87.1% to 91.4% it is alloyed with 0.18% to 0.28% chromium Cr, 1.2% to 2% copper Cu, 0.5% iron Fe, 2.1% to 2.9% magnesium Mg, 0.3% manganese Mn, 0.4% silicon Si, 0.2% titanium Ti, 5.1% to 6.1% zinc Zn, 0.05% other, 0.15% total.
Machinability Scale 70%
Hardness Rockwell HRB 87

7475-xxxx

Material specification based on -T651
We machine 7475-xxxx aluminum Al 88.5% to 91.5% it is alloyed with 0.18% to 0.25% chromium Cr, 1.2% to 1.9% copper Cu, 0.12% iron Fe, 1.9% to 2.6% magnesium Mg, 0.06% manganese Mn, 0.1% silicon Si, 0.06% titanium Ti, 5.2% to 6.2% zinc Zn, 0.05% other, 0.15% total.
Machinability Scale 70%
Hardness Rockwell HRB 87

Before you read anymore, we love titanium, we love to machine titanium and we really believe that titanium is our calling, so we have an extended understanding of this great metal.