Primary Alloyed Aluminium
Mechem has developed an outstanding reputation for service and reliability. Our vast network of suppliers, strong support services, and extensive customer base provides a framework from which all of our clients benefit.
We supply extrusion billets, rolling slabs and foundry ingots / T-bars across various industries with standard alloy covering customer specification in Primary Alloyed aluminium.
Alloy billets (1xxx-7xxx) range in diamaters from 4“(102 mm) up to 17“(432 mm) and lenghts are 5800 mm, 6000 mm and 7000 mm (for cut billets please consult us) with below standard chemical analysis ;
We also supply according to the customer specs in alloys 2xxx, 3xxx, 6xxx, 5xxx and 7xxx
Metallurgical Quality
Average grain size : min 2000 grains/cm2 – max 200 µ acc to ASTM E112-96
Inverse segragation zone : ˂200 µ
Inclusions : each cast need to be filtered with ceramich foam filter with a min rating of 30 ppi and max amount of inclusion.
Physical quality
Physical quality
Mechanical demages must not be greater than 2 mm in depth, 5 mm in width and 250 mm in lenghts on the surface of the billets
Dimension and tolerances
Diameter +0/-2 mm up to 203 mm , +0/-3 mm above 228 mm
Length +/-10 mm
Marking : billets in a bundle is marked on one cut end with cast number and alloy code.
| Alloy(Max) | Si % | Fe % | Cu % | Mn % | Mg % | Zn % max | Cr % | Ti % | Others Each | Others Total |
|---|---|---|---|---|---|---|---|---|---|---|
| 6060HP | 0.40–0.44 | 0.15–0.20 | 0.02 | 0.01-0.03 | 0.36 – 0.40 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6060-30 | 0.40–0.45 | 0.15–0.20 | 0.02 | 0.01-0.03 | 0.40 – 0.45 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6060-30s | 0.42-0.47 | 0.16-0.20 | 0.02 | 0.01-0.03 | 0.39-0.45 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6060-90 | 0.50-0.55 | 0.16-0.22 | 0.02 | 0.02-0.03 | 0.50-0.55 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6063-35I | 0.42–0.46 | 0.15–0.20 | 0.02 | 0.01-0.03 | 0.42 – 0.47 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6063-35S | 0.42-0.46 | 0.14-0.19 | 0.02 | 0.01-0.03 | 0.46-0.50 | 0.02 | 0.02 | 0.02 | 0.02 | 0.10 |
| 6005 | 0.58-0.63 | 0.18-0.22 | 0.10-0.2 | 0.13-0.17 | 0.53-0.58 | 0.02 | 0.02 | 0.02 | 0.10 | |
| 6061 | 0.61-0.66 | 0.14-0.20 | 0.20-0.30 | max 0.05 | 0.90-0.96 | 0.02 | 0.06-0.19 | 0.02-0.05 | 0.02 | 0.10 |
| 6082 | 0.95-1.05 | 0.15-0.23 | max 0.03 | 0.50-0.57 | 0.62-0.67 | 0.02 | 0.02 | 0.02 | 0.10 | |
| 6463 | 0.34-0.38 | 0.06-0.13 | 0.10-0.15 | 0.03-0.05 | 0.45-0.53 | 0.02 | 0.03 | 0.05 | 0.02 | 0.10 |
| P1020 | Max0.08 | Max0.20 | Max 0.01 | Max 0.01 | Max 0.02 | 0.04 | Max 0.01 | Max 0.01 | 0.02 | 0.10 |
| property | T5 | T6 |
|---|---|---|
| Tensile strength (Mpa) | 160 | 190 |
| Yield strength (Mpa) | 120 | 150 |
| 20-50 µ | 51-100 µ | Greater than 100 µ |
|---|---|---|
| <7 | <1 | 0 |
1xxx, 3xxx, 5xxx and 6xxx series rolling slabs and forcast plate slabs are available we supply according to the customer specifications.
Production of other sizes is possible according to the order from the customer
dimensions of slabs
| Thickness mm | Width mm | Length mm |
|---|---|---|
| 600 | 1630 | 3800 |
| 600 | 1630 | 3020 |
| 600 | 1630 | 4115 |
| 600 | 1750 | 3810 |
| 560 | 1310 | 4500 |
| 560 | 1100 | 4000 |
According to the EN1706,EN AC42100
Quality certificates : ISO/TS9001, ISO/TS16949, ISO14001, ISO18000, ISO27000 etc
Open mould ingot weight : 7-15 kgs
Continuous mold ingot weight : 6-8 kgs
Continuous cast bar weight : 10 kgs
Tbars weight range : 300-750 kgs
Marking & packing : will be done acc to customers specification
| alloy | Si % | Fe % | Mn % | Mg % | Cu % | Ti % | Zn % | Cr % | Sn % | V % | Ga % | Ca % | Pb % | Ni % | Sr % | P % | Sb % | AL | Others Each | Others Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AlSi10Mg | 9.00-11.00 | 1.00 | 0.001-0.4 | 0.2-0.5 | 0.1 | 0.15 | 0.1 | 0.05 | balance | 0.020 | 0.100 | |||||||||
| AlSi7MgSr | 6.60-7.30 | 0.13 | 0.05 | 0.25-0.33 | 0.02 | 0.10-0.15 | 0.05 | 0.005 | 0.01 | 0.03 | 0.03 | 20ppm | 0.01 | 0.01 | 0.013-0.023 | 15ppm | 0.005 | balance | 0.020 | 0.100 |
| AlSi11MgSr | 10.70-11.60 | 0.1300 | 0.04 | 0.12-0.17 | 0.02 | 0.10-0.15 | 0.04 | 0.005 | 0.01 | 0.03 | 0.03 | 25ppm | 0.01 | 0.01 | 0.0350-0.0450 | 15ppm | 0.005 | balance | 0.020 | 0.100 |
| AlSi10MgMn | 9.50-11.50 | 0.15 | 0.60-0.80 | 0.15-0.30 | 0.03 | 0.04-0.15 | 0.07 | 0.03 | 0.005 | 0.03 | 0.10 | 0.015-0.030 | 0.0020 | 0.015 | balance | 0.020 | 0.100 | |||
| 145-piston alloy | 11.00-12.00 | 0.20-0.30 | 0.15 | 0.8-1.40 | 0.80-1.5 | 0.08 | 0.02 | 0.05 | 0.80-1.30 | balance | 0.020 | 0.100 | ||||||||
| 175-piston alloy | 11.00-12.00 | 0.20-0.30 | 0.15 | 0.80-1.40 | 3.00-4.50 | 0.05 | 0.08 | 0.05 | 2.00-3.00 | 0.001-0.004 | balance | 0.020 | 0.100 | |||||||
| AlSi9Cu3 | 8.00-9.50 | 0.70-1.00 | 0.40-0.65 | 0.15-0.40 | 3.00-3.50 | 0.15 | 1.00 | 0.10 | 0.0050 | 0.10 | 0.10 | Max0.0010 | 0.0015 | 0.020 | balance | 0.020 | 0.100 | |||
| AlSi50 | 47-53 | 0.30 | 0.05 | Max0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.15 | 0.05 | balance | 0.020 | 0.100 | |||||||
| AlSi20 | 18-22 | 0.45 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | balance | 0.020 | 0.100 |