Density, specific heat capacity, melting point of magnesium.
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Features of the structure and properties of magnals
The peculiarity of the chemical composition of the alloys under consideration is a significant content of magnesium: from 0.4 to 6.3%, in addition, these alloys include manganese, iron, silicon and copper. The presence of 0.2...0.8% manganese increases the strength characteristics of magnesium alloys. Titanium is used as a modifier, and the addition of chromium in some grades (for example, in AB) gives the alloy increased resistance to corrosion phenomena.
Foundry and wrought magnalloys
Casting magnesium is used as a simple shape castings, while deformable magnesium is used for sheets by rolling and wire drawing. With relatively high strength, foundry magnesium is characterized by low casting properties. Wrought aluminum-manganese-magnesium alloys practically do not harden by heat treatment, but alloys based on aluminum and magnesium are thermally unstable, highly ductile, and are characterized by high corrosion resistance. In terms of metallography, all magnesium alloys are an α-hard solution with inclusion of particles of the second phase - an intermetallic compound of magnesium and aluminum, with the presence of magnesium silicide. Supplier Evek GmbH offers to buy aluminum of domestic and foreign production at an affordable price in a wide range. Provide product delivery anywhere in the continent. The price is optimum.
Physical Properties
| Mark of alloy | Thermal conductivity, W/m ° C, t ° 20 ° C | Density, kg/m3 | Coefficient of linear expansion, x106, °С-1 | Specific heat capacity, kJ/kg °C, t° 100 ° C | Melting point, ° C |
| AMg1 | 218...226 | 2710 | 24 | 0,9218 | 643...657 |
| AMg2 | 155...180 | 2680 | 24,2 | 0,9637 | 627...652 |
| AMg3 | 146...148 | 2670 | 23,5 | 0,8799 | 593...643 |
| Amg4 | 134 | 2670 | 23,8 | 0,9637 | 585...641 |
Alloys containing a small percentage of magnesium are used for production of items with increased ornamental and reflective properties. Alloys of АМг2...АМг4 are used in low-duty welded structures that should be operated in aggressive corrosive environments. Alloys AMg6 are used in welded structures for the production of tanks, ocean vessels, as well as in the cryogenic technology.
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