Dimensions and weight of corrugated sheets

Corrugated sheets are a type of rolled metal that is very popular in various industries. This article will focus on parameters such as the size and weight of corrugated sheets.

Corrugated sheets are used in the construction of ramps and stairs, in the manufacture of cars (production of non-slip surfaces), in road construction (various bridges and crossings). And also these elements are used for decorative finishes. For this purpose, four types of volumetric surface patterns have been developed:

• "Diamond" - basic drawing, which is a set of small perpendicular serifs;
• "Duet" - a more complex pattern, a feature of which is the pairwise placement of serifs located at an angle of 90 degrees to each other;
• "Quintet" and "Quartet" - texture, which is a set of bulges of various shapes, arranged in a checkerboard pattern.

Basically, this rolled metal product differs in the following parameters:

• material of manufacture - steel or aluminum;
• the number of volumetric notches per 1 m2 of area;
• type of pattern - "lentils" or "rhombus".

Thus, in order to calculate the mass of a particular segment, you need to know its above characteristics. As for the carbon steel sheet (grades St0, St1, St2, St3), it is made in accordance with GOST 19903-2015. If additional properties are required, for example, increased resistance to corrosion or a complex pattern, stainless grades of a higher level are used. The height of the corrugation should be between 0.1 and 0.3 of the thickness of the base sheet, but its minimum value should be greater than 0.5 mm. The pattern of applying the grooves to the surface is negotiated with the customer individually, the standard parameters are the diagonals or the distance between the serifs:

• diagonal of rhombic patterns - (from 2.5 cm to 3.0 cm) x (from 6.0 cm to 7.0 cm);
• the distance between the elements of the "lentil" pattern is 2.0 cm, 2.5 cm, 3 cm.

Table 1 shows the roughly calculated mass per meter of a square corrugated sheet, as well as a material with the following characteristics:

• width - 1.5 m, length - 6.0 m;
• specific gravity - 7850 kg / m3;
• notch height - 0.2 of the minimum thickness of the base sheet;
• averaged diagonal values ​​of elements of a pattern of the "rhombus" type.

Table 1

Calculation of the weight of steel rolled metal with a "rhombus" pattern.

Table 2 shows the numerical values ​​of the mass of 1 m2 and a whole corrugated sheet, which has the following parameters:

• sheet size - 1.5 mx 6.0 m;
• specific gravity - 7850 kg / m3;
• notch height - 0.2 of the minimum thickness of the base sheet;
• averaged values ​​of the distance between lentil serifs.

table 2

Calculation of the weight of a corrugated sheet of steel with a "lentil" pattern.

And also corrugated sheets can be made of high strength aluminum alloys. The process consists of cold or hot (if required thickness is from 0.3 cm to 0.4 cm) rolling, patterning and hardening of the material using a special oxide film that protects the sheet from external factors, increasing its service life (anodizing). As a rule, AMg and AMts grades are used for these purposes, which are easy to deform and weld. If the sheet must have certain external characteristics, it is additionally painted.

According to GOST 21631, corrugated aluminum sheet must have the following parameters:

• length - from 2 m to 7.2 m;
• width - from 60 cm to 2 m;
• thickness - from 1.5 m to 4 m.

Table 3 shows the numerical characteristics of a square meter of corrugated aluminum sheet.

Table 3

Calculation of the weight of rolled metal products from an aluminum alloy of the AMg2N2R brand.

According to GOST 8568-77, the corrugated sheet must have the following numerical values:

• length - from 1.4 m to 8 m;
• width - from 6 m to 2.2 m;
• thickness - from 2.5 mm to 12 mm (this parameter is determined by the base, excluding the corrugated protrusions).

The following brands are very popular:

• hot-rolled corrugated steel sheet with dimensions 3x1250x2500;
• hot-rolled corrugated steel sheet 4x1500x6000;
• corrugated steel sheet, hot-smoked, size 5x1500x6000.

The characteristics of these brands are presented in table 4.

Table 4

Numerical parameters of hot-rolled corrugated steel sheets.

As mentioned above, the specified thickness of corrugated steel sheets ranges from 2.5 to 12 mm. The thickness value for plates with a "rhombus" pattern starts at 4 mm, and for specimens with a "lentil" pattern the minimum thickness is 3 mm. The rest of the standard dimensions (5 mm, 6 mm, 8 mm and 10 mm) are used for both sheet types. Thickness of 2 mm or less is found in metal plates made of aluminum alloy and galvanized metal-roll, which is made by cold-rolled method with additional application of zinc alloy for corrosion resistance of the material.