Table - calculating the weight of steel wire, circles and bars. Dimensions and thicknesses of steel wire, circles and bars.

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Calculation of the weight of bulk rolled alloy steels

In the practice of design work it is often necessary to calculate the weight of steel rounds, bars or wires of certain lengths and diameters. For a circular profile this is particularly easy to do, given that the volume of a cylindrical section of any material is: V = 3,14r2 h, where r is the radius of the rolled section, and h is the length of the section whose mass needs to be calculated. Accordingly, the mass is determined from the ratio: M = Vρ, where ρ is the density of alloy steel of a certain grade, which is given below:

Name of steel Steel grade Density kg/m3
Stainless constructional cryogenic steel 12Х18Н10Т 7900
Structural low-alloy construction 09G2S 7850
Instrumental stamping X12MF 7700
Instrumental stamping 5XHNM 7800
Structural spring-spring 65Г 7850
Structural alloyed 30ХГСА 7850
Nickel-chromium EI 418 8510
Chromium-manganese-nickel CH13N4G9 (EI100) 8500
Chromium 1CR13 (EZH1) 7750
Chromium 15XA 7740
Chrome-nickel 0CR18H9 (EJ0) 7850
Chrome-silicon-molybdenum ЭИ107 7620
Chrome-nickel-tungsten EN69 8000
Chromium-nickel-silicon EN72 7700
Nitrided chromium-aluminum-molybdenum 38CRMUA 7650
Chromium-manganese-silicon 25CGSA 7850

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Tabular method

The tabular method of determining the weight of round bars is that the weight of a metre of steel products is established by known tables. The method is limited by the size of the sections of rolled steel, and does not take into account the difference in densities of different grades of alloy steels. Therefore, it is advisable to use it only for preliminary calculations.

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