Sheets of aluminum and alloys. Theoretical weight. GOST 17232-99.

In industrial practice, a large number of different designs are used, using metals and alloys with special properties. A functional feature of the production process is the correct choice of the required metal or metal alloy. Designers pay attention to the following selection criteria:

It is equally important to calculate the need for the amount of the selected metal for the production of a certain structure or device. The calculation is made based on the formula: Y=P/V, where: Y is the specific gravity; P is the weight of solid metal; V is the volume of metal. The value obtained as a result of calculations is measured in cm/m³.

Density of materials

Unit

The density of aluminum and any other material is a physical quantity that determines the ratio of the mass of the material to the occupied volume.

  • The unit of measurement for density in the SI system is kg/m3.
  • For the density of aluminum, a more descriptive dimension g/cm 3 is often used.

The density of aluminum in kg/m 3 is a thousand times greater than in g/s m 3.

Specific gravity

To estimate the amount of material per unit volume, such a non-systemic, but more visual unit of measurement as “specific gravity” is often used. Unlike density, specific gravity is not an absolute unit of measurement. The fact is that it depends on the magnitude of gravitational acceleration g, which varies depending on the location on Earth.

Dependence of density on temperature

The density of the material depends on temperature. It usually decreases with increasing temperature. On the other hand, specific volume—volume per unit mass—increases with increasing temperature. This phenomenon is called thermal expansion. It is usually expressed as a coefficient of thermal expansion, which gives the change in length per degree of temperature, for example mm/mm/ºC. Change in length is easier to measure and apply than change in volume.

Specific volume

The specific volume of a material is the reciprocal of density. It shows the volume of a unit of mass and has the dimension m 3 / kg. Based on the specific volume of the material, it is convenient to observe the change in the density of materials during heating and cooling.

How much does 1m3 of aluminum weigh?

What do we want to learn today? How much does 1 cube of aluminum, duralumin alloy weigh, the weight of 1 m3 of aluminum, silumin, silver metal Al?

No problem, you can find out the number of kilograms or the number of tons at once, the mass of silver metal Al (the weight of one cubic meter of Duralumin D 16, the weight of one cube of Aircraft AB, the weight of one cubic meter of Duralumin, the weight of 1 m3 of silumin) are indicated in Table 1. If anyone interesting, you can skim the small text below and read some explanations.
How is the amount of substance, material, liquid or gas we need measured? Except for those cases when it is possible to reduce the calculation of the required quantity to the counting of goods, products, elements in pieces (piece counting), it is easiest for us to determine the required quantity based on volume and weight (mass). In everyday life, the most common unit of volume measurement for us is 1 liter. However, the number of liters suitable for household calculations is not always an applicable way to determine the volume for business activities. In addition, liters in our country have not become a generally accepted “production” and trade unit for measuring volume. One cubic meter, or in its abbreviated version - one cube, turned out to be a fairly convenient and popular unit of volume for practical use. We are accustomed to measuring almost all substances, liquids, materials and even gases in cubic meters. It's really convenient. After all, their costs, prices, rates, consumption rates, tariffs, supply contracts are almost always tied to cubic meters (cubes), and much less often to liters. No less important for practical activities is knowledge of not only the volume, but also the weight (mass) of the substance occupying this volume: in this case we are talking about how much 1 cubic meter of aluminum alloy, winged metal Al weighs (1 cubic meter of duralumin D 16, 1 cubic meter , 1 m3 of air). Knowing the mass and volume gives us a fairly complete idea of ​​the amount of silumin. Site visitors, when asking how much 1 cube of duralumin or aluminum weighs, often indicate specific units of mass of the silver metal Al in which they would like to know the answer to the question. As we noticed, most often they want to know the weight of 1 cube of aluminum alloy (1 cubic meter of aircraft, 1 cubic meter of duralumin D 16, 1 m3 of duralumin alloy) in kilograms (kg) or in tons (t). Essentially, you need kg/m3 or t/m3. These are closely related units that define the amount of silver metal Al. In principle, a fairly simple independent conversion of the weight (mass) of duralumin from tons to kilograms and vice versa is possible: from kilograms to tons. However, as practice has shown, for most site visitors a more convenient option would be to immediately find out how much kilogram 1 cubic (1 m3) of aluminum, duralumin alloy weighs, or how many tons 1 cubic (1 m3) of aluminum, silver metal Al weighs
, without converting kilograms to tons or vice versa - the number of tons in kilograms per cubic meter (one cubic meter, one cubic meter, one m3).
Therefore, in Table 1 we indicated how much 1 cubic meter of aluminum alloy weighs (1 cubic meter of duralumin, 1 cubic meter of aircraft) in kilograms (kg) and tons (t). Choose the table column that you need yourself. By the way, when we ask how much 1 cubic meter (1 m3) of duralumin alloy weighs, we mean the number of kilograms of silumin or the number of tons of aluminum. However, from a physical point of view, we are interested in the density of aluminum or the specific gravity of the silver metal Al. The mass of a unit volume or the amount of substance placed in a unit volume is the bulk density of duralumin or the specific gravity of aluminum. In this case, the bulk density of the aluminum alloy and the specific gravity of aluminum.
The density of duralumin and the specific gravity of aviation AB (winged metal Al) in physics are usually measured not in kg/m3 or in tons/m3, but in grams per cubic centimeter: g/cm3. Therefore, in Table 1, the specific gravity of the aluminum alloy and the density of aluminum, duralumin, duralumin alloy (synonyms) are indicated in grams per cubic centimeter (g/cm3)

Aluminum Density

Theoretical density of aluminum

The density of a chemical element is determined by its atomic number and other factors such as atomic radius and the way the atoms are packed. The theoretical density of aluminum at room temperature (20 °C) based on the parameters of its atomic lattice is:

Density of aluminum: solid and liquid

A graph of aluminum density versus temperature is shown in the figure below [1]:

  • As the temperature increases, the density of aluminum decreases.
  • When aluminum transitions from a solid to a liquid state, its density decreases abruptly from 2.55 to 2.34 g/cm 3 .

The density of aluminum in the liquid state - molten pure aluminum 99.996% - at various temperatures is presented in the table.

Alloys used in the production of aluminum sheets

For the production of sheets, aluminum grades A0, A5, A6, A7 are used (the chemical composition is regulated by GOST 11069-74), as well as AD, AD0, AD00, AD1 (according to GOST 4784-74). The range also includes products made from heat-strengthened and non-heat-strengthened alloys of the following types:

  • high strength;
  • weldable, standard strength;
  • normal strength (duralumin);
  • highly plastic, medium strength (magnalia);
  • highly plastic, low strength - with and without alloying.

Production capabilities

Aluminum/alloy gradeNo heat treatmentMH2NTT1TN
A0++++
A5++++
A6++++
A7++++
HELL++++
AD0++++
AD1++++
AD00++++
AMts++++
AMtsS++++
AMg2++++
AMg3+++
AMg5++
AMg6++
AMg6B++
AMg6U+
AB++++
D1A+++
D16A++++
D16B+++
D16+++
D16U++
B95-1A+++
B95-1+
B95-2A+++
V95-2B+
VD1A+++
VD1B++++
VD1++++
AKMA++++
AKMB+
AKM+
B95A+++
1915+++
D12++
MM+

Aluminum alloys

Effect of doping

Differences in the density of different aluminum alloys are due to the fact that they contain different alloying elements and in different quantities. On the other hand, some alloying elements are lighter than aluminum, others are heavier.

Alloying elements lighter than aluminum:

Alloying elements heavier than aluminum:

The effect of alloying elements on the density of aluminum alloys is demonstrated by the graph in the figure below [1].

Aluminum sheet weight

For the convenience of preliminary calculations of various designs, we bring to your attention the weight of aluminum sheets per piece and square meter in the table below. These sheets are widely used in industry. The weight of sheets made of other alloys can be calculated using conversion factors. To calculate the weight of AMg2 aluminum sheets, this weight must be multiplied by a factor of 0.992; Amg3 - 0.988; AMg5 - 0.981; AMg6 - 0.977; D16 - 1.03. Please note that the indicated weight of aluminum sheet is approximate and calculated using theoretical formulas. The weight of real sheets can fluctuate both up and down by several percent; this is due to technological variation during production. If the required sheet size is not in the table, you can use our non-ferrous rolled metal weight calculator

You may also need other calculation tables for other types of rolled aluminum

The lightest and heaviest aluminum alloys

  • One of the lightest aluminum alloys is the foreign cast alloy 518.0 (7.5-8.5% magnesium) - 2.53 g per cubic centimeter [1]. The domestic alloy AMg11 (AL22) contains even more magnesium - from 10.5 to 13.0%. Therefore, we must think that it is even lighter, but we do not have exact data!
  • The heaviest aluminum alloys are foreign cast alloys 222.0 and 238.0 with a nominal copper content of 10%. Their nominal density is 2.95 g per cubic centimeter [1].
  • The lightest wrought alloy is 8090 aluminum-lithium alloy with a nominal lithium content of 2.0%. Its nominal density is 2.55 g per cubic centimeter [1].
  • The heaviest deformable aluminum alloys are alloy B95 and foreign alloy 7175: 2.85 g per cubic centimeter [4].

How much does a square meter of aluminum sheet weigh?

Sheet size Weight of 1 square meter, kg Weight of 1 sq.m of aluminum sheet with a thickness of 0.5 mm 1.4 Weight of 1 sq.m of aluminum sheet with a thickness of 1 mm 2.7 Weight of 1 sq.m of aluminum sheet with a thickness of 1.5 mm 4.1 Weight of 1 sq.m of aluminum sheet 2 mm thick 5.4 Weight of 1 sq. m of aluminum sheet 2.5 mm thick 6.8 Weight of 1 sq. m of aluminum sheet 3 mm thick 8.2 Weight of 1 sq. m of aluminum sheet 4 mm thick 10.9 Weight of 1 sq. m of aluminum sheet 5 mm thick 13, 6Weight of 1 sq.m of aluminum sheet 6 mm thick 16.3Weight of 1 sq.m of aluminum sheet 8 mm thick 21.8Weight of 1 sq.m of aluminum sheet 10 mm thick 27.2

Density of industrial aluminum alloys

The densities of aluminum and aluminum alloys that are used in industry are presented in the table below for the annealed state (O). To a certain extent, it depends on the state of the alloy, especially for heat-hardening aluminum alloys.

Influence of alloying elements of aluminum alloys on density and Young’s modulus [3]

Aluminum-lithium alloys

The famous aluminum-lithium alloys have the lowest density.

  • Lithium is the lightest metal element.
  • The density of lithium at room temperature is 0.533 g/cm³ - this metal can float in water!
  • Every 1% lithium in aluminum reduces its density by 3%
  • Every 1% lithium increases the elastic modulus of aluminum by 6%. This is very important for aircraft construction and space technology.

Popular industrial aluminum-lithium alloys are 2090, 2091 and 8090:

  • Alloy 2090 has a nominal lithium content of 1.3% and a nominal density of 2.59 g/cm3.
  • Alloy 2091 has a nominal lithium content of 2.2% and a nominal density of 2.58 g/cm3.
  • Alloy 8090 with a lithium content of 2.0% has a density of 2.55 g/cm 3 .

Metal weight table

The main characteristic affecting the weight of a metal is its density.

What does metal density mean?

The density of a metal refers to its weight per unit of occupied volume. Volume is often measured in cubic meters and cubic centimeters. What is the reason for such large, by earthly standards, weight and density? The density of a metal and its weight depend on how small the radius of the atom is and how large its weight is.

Density of metals table

Metalg/cm3kg/m3Metalg/cm3kg/m3
Lithium0,534534Samarium7,5367536
Potassium0,87870Iron7,877874
Sodium0,9689680Gadolinium7,8957895
Rubidium1,531530Terbium8,2728272
Calcium1,541540Dysprosium8,5368536
Magnesium1,741740Niobium8,578570
Beryllium1,8451845Cadmium8,658650
Cesium1,8731873Holmium8,8038803
Silicon2,332330Nickel8,98900
Bor2,342340Cobalt8,98900
Strontium2,62600Copper8,948940
Aluminum2,72700Erbium9,0519051
Scandium2,992990Thulium9,3329332
Barium3,53500Bismuth9,89800
Yttrium4,4724472Lutetium9,8429842
Titanium4,544540Molybdenum10,2210220
Selenium4,794790Silver10,4910490
Europium5,2595259Lead11,3411340
Germanium5,325320Thorium11,6611660
Arsenic5,7275727Thallium11,8511850
Gallium5,9075907Palladium12,0212020
Vanadium6,116110Ruthenium12,412400
Lanthanum6,1746174Rhodium12.4412440
Tellurium6,256250Hafnium13,2913290
Zirconium6,456450Mercury13,5513550
Cerium6,666660Tantalum16,616600
Antimony6,686680Uranus19,0719070
Praseodymium6,7826782Tungsten19,319300
Ytterbium6,9776977Gold19,3219320
Neodymium7,0047004Plutonium19,8419840
Zinc7,137130Rhenium21,0221020
Chromium7,197190Platinum21,4021400
Tin7,37300Iridium22,4222420
Indium7,317310Osmium22,522500
Manganese7,447440

The table shows that the specific gravity of a cube of metal varies greatly. The difference in weight between the heaviest and lightest metal is 42 times. Osmium, whose weight is 22500 kg per m3 and lithium, which has the lowest density, whose weight is 534 kg per m3. The metal that has the greatest density also has the greatest weight and it is osmium, as we already understood.

The average density among all metals is 11.5 g per cm3.

It is also noteworthy that there are metals whose density is less than water. There are several of them: lithium, potassium, sodium.

For reference, we can add that osmium is not only the heaviest, but also the rarest. It is mined at around 100 kg per year.

Density of precious metals

Precious metals usually include: silver, gold, palladium, platinum, ruthenium, rhodium, iridium, osmium. The density of which starts from 10.49 g cm3 (silver) and reaches 22.5 cm3 (osmium). You can check the weight of others in the table.

Alloy Density Table
Alloyg/cm3kg/m3Alloyg/cm3kg/m3
Duralumin2,752750Nichrome8,48400
Gray cast iron7,17100Brass8,2-8,88200-8800
White cast iron7,6-7,87600-7800Bronze7,5-9,17500-9100
Steel7,87800Wood's alloy9,79700
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